Flights from Seattle (SEA) to Boston (BOS)

Flight schedules from Seattle to Boston with Star Alliance member carriers

Please note that the flight schedules of our member carriers are subject to change on short notice. We recommend using our member airlines information page. for the latest flight updates, details on booking flexibility, as well as specific Frequent Flyer Program information.

Outbound (48)

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Seattle US
SEA07:00
7h 23m
1 Stop
Boston US
BOS17:23
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1373
  Seattle. US
  SEA 07:00
  4h 6m
  1725 Miles
  Chicago. US
  ORD 13:06
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 580
  Chicago. US
  ORD 14:00
  2h 23m
  869 Miles
  Boston. US
  BOS 17:23
  Boeing 737-800 Passenger
  Operated by United Airlines
Seattle US
SEA09:00
7h 48m
1 Stop
Boston US
BOS19:48
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1829
  Seattle. US
  SEA 09:00
  2h 43m
  1028 Miles
  Denver. US
  DEN 12:43
  Airbus A321neo
  Operated by United Airlines
2. Flight 2United Airlines UA 260
  Denver. US
  DEN 13:55
  3h 53m
  1759 Miles
  Boston. US
  BOS 19:48
  Boeing 737-900 Passenger
  Operated by United Airlines
Seattle US
SEA05:00
7h 48m
1 Stop
Boston US
BOS15:48
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2269
  Seattle. US
  SEA 05:00
  2h 43m
  1028 Miles
  Denver. US
  DEN 08:43
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2461
  Denver. US
  DEN 09:51
  3h 57m
  1759 Miles
  Boston. US
  BOS 15:48
  Airbus A320 Passenger
  Operated by United Airlines
Seattle US
SEA11:05
7h 54m
1 Stop
Boston US
BOS21:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 747
  Seattle. US
  SEA 11:05
  4h 5m
  1725 Miles
  Chicago. US
  ORD 17:10
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1989
  Chicago. US
  ORD 18:30
  2h 29m
  869 Miles
  Boston. US
  BOS 21:59
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
Seattle US
SEA23:59
7h 57m
1 Stop
Boston US
BOS10:56
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2019
  Seattle. US
  SEA 23:59
  4h 1m
  1725 Miles
  Chicago. US
  ORD 06:00
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2United Airlines UA 1083
  Chicago. US
  ORD 07:30
  2h 26m
  869 Miles
  Boston. US
  BOS 10:56
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
Seattle US
SEA08:00
8h 0m
1 Stop
Boston US
BOS19:00
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1360
  Seattle. US
  SEA 08:00
  5h 6m
  2313 Miles
  Washington. US
  IAD 16:06
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 688
  Washington. US
  IAD 17:25
  1h 35m
  414 Miles
  Boston. US
  BOS 19:00
  Boeing 737-800 Passenger
  Operated by United Airlines
Seattle US
SEA12:35
8h 2m
1 Stop
Boston US
BOS23:37
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1483
  Seattle. US
  SEA 12:35
  2h 42m
  1028 Miles
  Denver. US
  DEN 16:17
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2United Airlines UA 1510
  Denver. US
  DEN 17:38
  3h 59m
  1759 Miles
  Boston. US
  BOS 23:37
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
Seattle US
SEA07:08
8h 18m
1 Stop
Boston US
BOS18:26
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1329
  Seattle. US
  SEA 07:08
  5h 9m
  2408 Miles
  New York. US
  EWR 15:17
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2612
  New York. US
  EWR 17:10
  1h 16m
  201 Miles
  Boston. US
  BOS 18:26
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
Seattle US
SEA18:00
8h 56m
1 Stop
Boston US
BOS05:56
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1279
  Seattle. US
  SEA 18:00
  2h 44m
  1028 Miles
  Denver. US
  DEN 21:44
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2610
  Denver. US
  DEN 23:59
  3h 57m
  1759 Miles
  Boston. US
  BOS 05:56
  Boeing 757-200 Passenger
  Operated by United Airlines
Seattle US
SEA09:20
9h 23m
1 Stop
Boston US
BOS21:43
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1960
  Seattle. US
  SEA 09:20
  2h 19m
  683 Miles
  San Francisco. US
  SFO 11:39
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2851
  San Francisco. US
  SFO 13:00
  5h 43m
  2712 Miles
  Boston. US
  BOS 21:43
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
Seattle US
SEA05:00
9h 23m
2 Stops
Boston US
BOS17:23
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2269
  Seattle. US
  SEA 05:00
  2h 43m
  1028 Miles
  Denver. US
  DEN 08:43
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2329
  Denver. US
  DEN 09:40
  2h 38m
  891 Miles
  Chicago. US
  ORD 13:18
  Boeing 757-300 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 580
  Chicago. US
  ORD 14:00
  2h 23m
  869 Miles
  Boston. US
  BOS 17:23
  
  Operated by United Airlines
Seattle US
SEA07:00
9h 31m
1 Stop
Boston US
BOS19:31
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1403
  Seattle. US
  SEA 07:00
  2h 20m
  683 Miles
  San Francisco. US
  SFO 09:20
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2259
  San Francisco. US
  SFO 10:45
  5h 46m
  2712 Miles
  Boston. US
  BOS 19:31
  Boeing 757-200 Passenger
  Operated by United Airlines
Seattle US
SEA11:05
9h 54m
2 Stops
Boston US
BOS23:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 747
  Seattle. US
  SEA 11:05
  4h 5m
  1725 Miles
  Chicago. US
  ORD 17:10
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 444
  Chicago. US
  ORD 18:08
  1h 53m
  590 Miles
  Washington. US
  IAD 21:01
  Airbus A320 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 755
  Washington. US
  IAD 22:24
  1h 35m
  414 Miles
  Boston. US
  BOS 23:59
  
  Operated by United Airlines
Seattle US
SEA09:00
9h 59m
2 Stops
Boston US
BOS21:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1829
  Seattle. US
  SEA 09:00
  2h 43m
  1028 Miles
  Denver. US
  DEN 12:43
  Airbus A321neo
  Operated by United Airlines
2. Flight 2United Airlines UA 617
  Denver. US
  DEN 13:30
  2h 35m
  891 Miles
  Chicago. US
  ORD 17:05
  Boeing 757-300 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 1989
  Chicago. US
  ORD 18:30
  2h 29m
  869 Miles
  Boston. US
  BOS 21:59
  
  Operated by United Airlines
Seattle US
SEA05:00
10h 26m
2 Stops
Boston US
BOS18:26
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2269
  Seattle. US
  SEA 05:00
  2h 43m
  1028 Miles
  Denver. US
  DEN 08:43
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2058
  Denver. US
  DEN 10:00
  3h 44m
  1609 Miles
  New York. US
  EWR 15:44
  Boeing 757-200 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 2612
  New York. US
  EWR 17:10
  1h 16m
  201 Miles
  Boston. US
  BOS 18:26
  
  Operated by United Airlines
Seattle US
SEA07:00
10h 46m
2 Stops
Boston US
BOS20:46
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1373
  Seattle. US
  SEA 07:00
  4h 6m
  1725 Miles
  Chicago. US
  ORD 13:06
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2649
  Chicago. US
  ORD 15:15
  2h 16m
  721 Miles
  New York. US
  EWR 18:31
  Boeing 737-900 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 1393
  New York. US
  EWR 19:30
  1h 16m
  201 Miles
  Boston. US
  BOS 20:46
  
  Operated by United Airlines
Seattle US
SEA07:00
10h 46m
2 Stops
Boston US
BOS20:46
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1373
  Seattle. US
  SEA 07:00
  4h 6m
  1725 Miles
  Chicago. US
  ORD 13:06
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2115
  Chicago. US
  ORD 14:15
  2h 15m
  721 Miles
  New York. US
  EWR 17:30
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
3. Flight 3United Airlines UA 1393
  New York. US
  EWR 19:30
  1h 16m
  201 Miles
  Boston. US
  BOS 20:46
  
  Operated by United Airlines
Seattle US
SEA05:45
10h 46m
1 Stop
Boston US
BOS19:31
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 363
  Seattle. US
  SEA 05:45
  2h 20m
  683 Miles
  San Francisco. US
  SFO 08:05
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2259
  San Francisco. US
  SFO 10:45
  5h 46m
  2712 Miles
  Boston. US
  BOS 19:31
  Boeing 757-200 Passenger
  Operated by United Airlines
Seattle US
SEA05:00
11h 0m
2 Stops
Boston US
BOS19:00
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2269
  Seattle. US
  SEA 05:00
  2h 43m
  1028 Miles
  Denver. US
  DEN 08:43
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2087
  Denver. US
  DEN 10:25
  3h 24m
  1457 Miles
  Washington. US
  IAD 15:49
  Boeing 757-300 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 688
  Washington. US
  IAD 17:25
  1h 35m
  414 Miles
  Boston. US
  BOS 19:00
  
  Operated by United Airlines
Seattle US
SEA17:25
11h 1m
1 Stop
Boston US
BOS07:26
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2397
  Seattle. US
  SEA 17:25
  2h 47m
  960 Miles
  Los Angeles. US
  LAX 20:12
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2United Airlines UA 2210
  Los Angeles. US
  LAX 22:55
  5h 31m
  2619 Miles
  Boston. US
  BOS 07:26
  Boeing 757-200 Passenger
  Operated by United Airlines
Seattle US
SEA23:59
11h 8m
2 Stops
Boston US
BOS14:07
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2019
  Seattle. US
  SEA 23:59
  4h 1m
  1725 Miles
  Chicago. US
  ORD 06:00
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2United Airlines UA 563
  Chicago. US
  ORD 07:10
  2h 15m
  721 Miles
  New York. US
  EWR 10:25
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
3. Flight 3United Airlines UA 1598
  New York. US
  EWR 12:55
  1h 12m
  201 Miles
  Boston. US
  BOS 14:07
  
  Operated by United Airlines
Seattle US
SEA09:20
11h 17m
2 Stops
Boston US
BOS23:37
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1960
  Seattle. US
  SEA 09:20
  2h 19m
  683 Miles
  San Francisco. US
  SFO 11:39
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1791
  San Francisco. US
  SFO 12:55
  2h 40m
  970 Miles
  Denver. US
  DEN 16:35
  Boeing 737-800 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 1510
  Denver. US
  DEN 17:38
  3h 59m
  1759 Miles
  Boston. US
  BOS 23:37
  
  Operated by United Airlines
Seattle US
SEA09:00
11h 18m
2 Stops
Boston US
BOS23:18
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1829
  Seattle. US
  SEA 09:00
  2h 43m
  1028 Miles
  Denver. US
  DEN 12:43
  Airbus A321neo
  Operated by United Airlines
2. Flight 2United Airlines UA 271
  Denver. US
  DEN 13:45
  2h 31m
  866 Miles
  Houston. US
  IAH 17:16
  Airbus A321neo
  Operated by United Airlines
3. Flight 3United Airlines UA 2237
  Houston. US
  IAH 18:30
  3h 48m
  1603 Miles
  Boston. US
  BOS 23:18
  
  Operated by United Airlines
Seattle US
SEA23:59
11h 31m
2 Stops
Boston US
BOS14:30
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2019
  Seattle. US
  SEA 23:59
  4h 1m
  1725 Miles
  Chicago. US
  ORD 06:00
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2United Airlines UA 2490
  Chicago. US
  ORD 08:50
  1h 58m
  590 Miles
  Washington. US
  IAD 11:48
  Boeing 737-800 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 2060
  Washington. US
  IAD 12:55
  1h 35m
  414 Miles
  Boston. US
  BOS 14:30
  
  Operated by United Airlines
Seattle US
SEA15:25
11h 31m
2 Stops
Boston US
BOS05:56
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 589
  Seattle. US
  SEA 15:25
  2h 19m
  683 Miles
  San Francisco. US
  SFO 17:44
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2862
  San Francisco. US
  SFO 19:05
  2h 40m
  970 Miles
  Denver. US
  DEN 22:45
  Boeing 737-900 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 2610
  Denver. US
  DEN 23:59
  3h 57m
  1759 Miles
  Boston. US
  BOS 05:56
  
  Operated by United Airlines
Seattle US
SEA06:10
11h 36m
2 Stops
Boston US
BOS20:46
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1571
  Seattle. US
  SEA 06:10
  2h 47m
  960 Miles
  Los Angeles. US
  LAX 08:57
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2United Airlines UA 1756
  Los Angeles. US
  LAX 10:15
  5h 10m
  2462 Miles
  New York. US
  EWR 18:25
  Boeing 787-10
  Operated by United Airlines
3. Flight 3United Airlines UA 1393
  New York. US
  EWR 19:30
  1h 16m
  201 Miles
  Boston. US
  BOS 20:46
  
  Operated by United Airlines
Seattle US
SEA09:20
11h 39m
2 Stops
Boston US
BOS23:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1960
  Seattle. US
  SEA 09:20
  2h 19m
  683 Miles
  San Francisco. US
  SFO 11:39
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1372
  San Francisco. US
  SFO 13:00
  4h 58m
  2426 Miles
  Washington. US
  IAD 20:58
  Boeing 787-9
  Operated by United Airlines
3. Flight 3United Airlines UA 755
  Washington. US
  IAD 22:24
  1h 35m
  414 Miles
  Boston. US
  BOS 23:59
  
  Operated by United Airlines
Seattle US
SEA07:00
11h 59m
2 Stops
Boston US
BOS21:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1788
  Seattle. US
  SEA 07:00
  4h 23m
  1883 Miles
  Houston. US
  IAH 13:23
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1293
  Houston. US
  IAH 14:20
  2h 50m
  930 Miles
  Chicago. US
  ORD 17:10
  Boeing 737-900 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 1989
  Chicago. US
  ORD 18:30
  2h 29m
  869 Miles
  Boston. US
  BOS 21:59
  
  Operated by United Airlines
Seattle US
SEA07:00
11h 59m
2 Stops
Boston US
BOS21:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1403
  Seattle. US
  SEA 07:00
  2h 20m
  683 Miles
  San Francisco. US
  SFO 09:20
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1612
  San Francisco. US
  SFO 10:36
  4h 29m
  1851 Miles
  Chicago. US
  ORD 17:05
  Airbus A321neo
  Operated by United Airlines
3. Flight 3United Airlines UA 1989
  Chicago. US
  ORD 18:30
  2h 29m
  869 Miles
  Boston. US
  BOS 21:59
  
  Operated by United Airlines
Seattle US
SEA05:45
12h 1m
2 Stops
Boston US
BOS20:46
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 363
  Seattle. US
  SEA 05:45
  2h 20m
  683 Miles
  San Francisco. US
  SFO 08:05
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1054
  San Francisco. US
  SFO 08:55
  5h 20m
  2573 Miles
  New York. US
  EWR 17:15
  Boeing 787-9
  Operated by United Airlines
3. Flight 3United Airlines UA 1393
  New York. US
  EWR 19:30
  1h 16m
  201 Miles
  Boston. US
  BOS 20:46
  
  Operated by United Airlines
Seattle US
SEA23:17
12h 13m
2 Stops
Boston US
BOS14:30
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 341
  Seattle. US
  SEA 23:17
  5h 18m
  2408 Miles
  New York. US
  EWR 07:35
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2United Airlines UA 4177
  New York. US
  EWR 10:15
  1h 32m
  212 Miles
  Washington. US
  IAD 11:47
  Canadair (Bombardier) Regional Jet 550
  Operated by United Airlines
3. Flight 3United Airlines UA 2060
  Washington. US
  IAD 12:55
  1h 35m
  414 Miles
  Boston. US
  BOS 14:30
  
  Operated by United Airlines
Seattle US
SEA18:00
12h 16m
2 Stops
Boston US
BOS09:16
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1279
  Seattle. US
  SEA 18:00
  2h 44m
  1028 Miles
  Denver. US
  DEN 21:44
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 237
  Denver. US
  DEN 23:59
  3h 38m
  1609 Miles
  New York. US
  EWR 05:37
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
3. Flight 3United Airlines UA 1109
  New York. US
  EWR 08:00
  1h 16m
  201 Miles
  Boston. US
  BOS 09:16
  
  Operated by United Airlines
Seattle US
SEA06:10
12h 49m
2 Stops
Boston US
BOS21:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1571
  Seattle. US
  SEA 06:10
  2h 47m
  960 Miles
  Los Angeles. US
  LAX 08:57
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2United Airlines UA 2113
  Los Angeles. US
  LAX 10:15
  4h 16m
  1750 Miles
  Chicago. US
  ORD 16:31
  Boeing 757-300 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 1989
  Chicago. US
  ORD 18:30
  2h 29m
  869 Miles
  Boston. US
  BOS 21:59
  
  Operated by United Airlines
Seattle US
SEA17:25
12h 51m
2 Stops
Boston US
BOS09:16
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2397
  Seattle. US
  SEA 17:25
  2h 47m
  960 Miles
  Los Angeles. US
  LAX 20:12
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2United Airlines UA 1786
  Los Angeles. US
  LAX 21:35
  5h 1m
  2462 Miles
  New York. US
  EWR 05:36
  Boeing 787-10
  Operated by United Airlines
3. Flight 3United Airlines UA 1109
  New York. US
  EWR 08:00
  1h 16m
  201 Miles
  Boston. US
  BOS 09:16
  
  Operated by United Airlines
Seattle US
SEA17:15
13h 1m
2 Stops
Boston US
BOS09:16
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 737
  Seattle. US
  SEA 17:15
  2h 19m
  683 Miles
  San Francisco. US
  SFO 19:34
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1555
  San Francisco. US
  SFO 21:25
  5h 34m
  2573 Miles
  New York. US
  EWR 05:59
  Boeing 757-200 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 1109
  New York. US
  EWR 08:00
  1h 16m
  201 Miles
  Boston. US
  BOS 09:16
  
  Operated by United Airlines
Seattle US
SEA15:25
13h 1m
2 Stops
Boston US
BOS07:26
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 589
  Seattle. US
  SEA 15:25
  2h 19m
  683 Miles
  San Francisco. US
  SFO 17:44
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1812
  San Francisco. US
  SFO 18:25
  1h 31m
  339 Miles
  Los Angeles. US
  LAX 19:56
  Boeing 737-900 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 2210
  Los Angeles. US
  LAX 22:55
  5h 31m
  2619 Miles
  Boston. US
  BOS 07:26
  
  Operated by United Airlines
Seattle US
SEA05:45
13h 14m
2 Stops
Boston US
BOS21:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 363
  Seattle. US
  SEA 05:45
  2h 20m
  683 Miles
  San Francisco. US
  SFO 08:05
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1612
  San Francisco. US
  SFO 10:36
  4h 29m
  1851 Miles
  Chicago. US
  ORD 17:05
  Airbus A321neo
  Operated by United Airlines
3. Flight 3United Airlines UA 1989
  Chicago. US
  ORD 18:30
  2h 29m
  869 Miles
  Boston. US
  BOS 21:59
  
  Operated by United Airlines
Seattle US
SEA07:00
13h 18m
2 Stops
Boston US
BOS23:18
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1373
  Seattle. US
  SEA 07:00
  7h 8m
  1883 Miles
  Houston. US
  IAH 17:04
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2237
  Houston. US
  IAH 18:30
  3h 48m
  1603 Miles
  Boston. US
  BOS 23:18
  Boeing 737-800 Passenger
  Operated by United Airlines
Seattle US
SEA07:00
13h 37m
2 Stops
Boston US
BOS23:37
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1403
  Seattle. US
  SEA 07:00
  2h 20m
  683 Miles
  San Francisco. US
  SFO 09:20
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1986
  San Francisco. US
  SFO 11:10
  2h 46m
  970 Miles
  Denver. US
  DEN 14:56
  Boeing 757-200 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 1510
  Denver. US
  DEN 17:38
  3h 59m
  1759 Miles
  Boston. US
  BOS 23:37
  
  Operated by United Airlines
Seattle US
SEA07:00
13h 59m
2 Stops
Boston US
BOS23:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1403
  Seattle. US
  SEA 07:00
  2h 20m
  683 Miles
  San Francisco. US
  SFO 09:20
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1164
  San Francisco. US
  SFO 11:15
  5h 12m
  2426 Miles
  Washington. US
  IAD 19:27
  Boeing 737-900 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 755
  Washington. US
  IAD 22:24
  1h 35m
  414 Miles
  Boston. US
  BOS 23:59
  
  Operated by United Airlines
Seattle US
SEA07:00
13h 59m
2 Stops
Boston US
BOS23:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1788
  Seattle. US
  SEA 07:00
  7h 23m
  2313 Miles
  Washington. US
  IAD 20:40
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 755
  Washington. US
  IAD 22:24
  1h 35m
  414 Miles
  Boston. US
  BOS 23:59
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
Seattle US
SEA12:50
14h 6m
2 Stops
Boston US
BOS05:56
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1509
  Seattle. US
  SEA 12:50
  2h 19m
  683 Miles
  San Francisco. US
  SFO 15:09
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 297
  San Francisco. US
  SFO 17:35
  2h 40m
  970 Miles
  Denver. US
  DEN 21:15
  Boeing 737-800 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 2610
  Denver. US
  DEN 23:59
  3h 57m
  1759 Miles
  Boston. US
  BOS 05:56
  
  Operated by United Airlines
Seattle US
SEA12:50
14h 6m
3 Stops
Boston US
BOS05:56
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1509
  Seattle. US
  SEA 12:50
  2h 19m
  683 Miles
  San Francisco. US
  SFO 15:09
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1754
  San Francisco. US
  SFO 16:35
  1h 31m
  339 Miles
  Los Angeles. US
  LAX 18:06
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
3. Flight 3United Airlines UA 2610
  Los Angeles. US
  LAX 18:45
  6h 22m
  2619 Miles
  Boston. US
  BOS 05:56
  
  Operated by United Airlines
Seattle US
SEA06:10
14h 8m
2 Stops
Boston US
BOS23:18
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1571
  Seattle. US
  SEA 06:10
  6h 8m
  1883 Miles
  Houston. US
  IAH 15:36
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2United Airlines UA 2237
  Houston. US
  IAH 18:30
  3h 48m
  1603 Miles
  Boston. US
  BOS 23:18
  Boeing 737-800 Passenger
  Operated by United Airlines
Seattle US
SEA06:10
14h 27m
2 Stops
Boston US
BOS23:37
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1571
  Seattle. US
  SEA 06:10
  2h 47m
  960 Miles
  Los Angeles. US
  LAX 08:57
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2United Airlines UA 1260
  Los Angeles. US
  LAX 11:15
  2h 29m
  865 Miles
  Denver. US
  DEN 14:44
  Boeing 757-300 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 1510
  Denver. US
  DEN 17:38
  3h 59m
  1759 Miles
  Boston. US
  BOS 23:37
  
  Operated by United Airlines
Seattle US
SEA06:10
14h 49m
3 Stops
Boston US
BOS23:59
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1571
  Seattle. US
  SEA 06:10
  6h 8m
  1883 Miles
  Houston. US
  IAH 15:36
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2United Airlines UA 1788
  Houston. US
  IAH 16:40
  3h 0m
  1195 Miles
  Washington. US
  IAD 20:40
  Boeing 737-800 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 755
  Washington. US
  IAD 22:24
  1h 35m
  414 Miles
  Boston. US
  BOS 23:59
  
  Operated by United Airlines
Seattle US
SEA09:20
17h 36m
3 Stops
Boston US
BOS05:56
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1960
  Seattle. US
  SEA 09:20
  3h 50m
  960 Miles
  Los Angeles. US
  LAX 16:51
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2610
  Los Angeles. US
  LAX 18:45
  6h 22m
  2619 Miles
  Boston. US
  BOS 05:56
  Boeing 737-800 Passenger
  Operated by United Airlines
Seattle US
SEA09:20
17h 36m
3 Stops
Boston US
BOS05:56
+1 day/s
Seattle - Boston
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1960
  Seattle. US
  SEA 09:20
  3h 50m
  960 Miles
  Los Angeles. US
  LAX 16:51
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2610
  Los Angeles. US
  LAX 18:45
  2h 25m
  865 Miles
  Denver. US
  DEN 22:10
  Boeing 737-800 Passenger
  Operated by United Airlines
3. Flight 3United Airlines UA 2610
  Denver. US
  DEN 23:59
  3h 57m
  1759 Miles
  Boston. US
  BOS 05:56
  
  Operated by United Airlines

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