Flights from Seattle (SEA) to Washington, D.C. (DCA) with Star Alliance

Start your journey with just one click

Airline

1/5

Seattle

toWashington, D.C.

SEA-IAD

August 30, 2025

Sold byUnited Airlines

From

584USD Price subject to changes

Viewed:5 minutes ago

Roundtrip

Economy

2/5

Seattle

toWashington, D.C.

SEA-IAD

August 30, 2025

Sold byUnited Airlines

From

674USD Price subject to changes

Viewed:5 minutes ago

Roundtrip

Economy

3/5

Seattle

toWashington, D.C.

SEA-IAD

August 30, 2025

Sold byUnited Airlines

From

764USD Price subject to changes

Viewed:5 minutes ago

Roundtrip

Economy

4/5

Seattle

toWashington, D.C.

SEA-IAD

August 30, 2025

Sold byUnited Airlines

From

1,027USD Price subject to changes

Viewed:5 minutes ago

Roundtrip

Economy

*Prices have been offered for round trips within the last 48 hours and might not be currently available. Not all Star Alliance Member Airlines or all fares/options are shown. Additional baggage fees, payment fees and fees for other optional services may apply. When booking, please check for restrictions on refunds, rebooking and baggage allowance that may apply. Prices may vary depending on the route and flights selected. Routings may include stopovers. Terms and conditions apply.

Weather in Washington, D.C.

Friday

broken clouds

28/03/2025

19°C

28/03/2025

broken clouds

Saturday

light rain

29/03/2025

24°C

29/03/2025

light rain

Sunday

overcast clouds

30/03/2025

23°C

30/03/2025

overcast clouds

Monday

moderate rain

31/03/2025

20°C

31/03/2025

moderate rain

Tuesday

light rain

01/04/2025

11°C

01/04/2025

light rain

Wednesday

overcast clouds

02/04/2025

13°C

02/04/2025

overcast clouds

Thursday

light rain

03/04/2025

18°C

03/04/2025

light rain

Flight schedules from Seattle to Washington, D.C. 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 (20)

Sort by

Seattle US
SEA07:05
10h 58m
1 Stop
Washington US
IAD21:03
Seattle - Washington
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 07:05
  7h 23m
  2313 Miles
  Washington. US
  IAD 21:03
  Airbus A319 Passenger
  Operated by United Airlines
Seattle US
SEA08:10
4h 59m
No stops
Washington US
IAD16:09
Seattle - Washington
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 08:10
  4h 59m
  2313 Miles
  Washington. US
  IAD 16:09
  Boeing 737-800 Passenger
  Operated by United Airlines
Seattle US
SEA19:10
7h 6m
1 Stop
Washington US
IAD05:16
+1 day/s
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1218
  Seattle. US
  SEA 19:10
  2h 45m
  1028 Miles
  Denver. US
  DEN 22:55
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1924
  Denver. US
  DEN 23:59
  3h 17m
  1457 Miles
  Washington. US
  IAD 05:16
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
Seattle US
SEA08:50
7h 7m
1 Stop
Washington US
IAD18:57
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 597
  Seattle. US
  SEA 08:50
  2h 46m
  1028 Miles
  Denver. US
  DEN 12:36
  Airbus A321neo
  Operated by United Airlines
2. Flight 2United Airlines UA 741
  Denver. US
  DEN 13:40
  3h 17m
  1457 Miles
  Washington. US
  IAD 18:57
  Boeing 737-900 Passenger
  Operated by United Airlines
Seattle US
SEA10:55
7h 18m
1 Stop
Washington US
IAD21:13
Seattle - Washington
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 10:55
  4h 6m
  1725 Miles
  Chicago. US
  ORD 17:01
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 444
  Chicago. US
  ORD 18:18
  1h 55m
  590 Miles
  Washington. US
  IAD 21:13
  Boeing 737-800 Passenger
  Operated by United Airlines
Seattle US
SEA12:55
7h 28m
1 Stop
Washington US
IAD23:23
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 645
  Seattle. US
  SEA 12:55
  2h 45m
  1028 Miles
  Denver. US
  DEN 16:40
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2408
  Denver. US
  DEN 18:10
  3h 13m
  1457 Miles
  Washington. US
  IAD 23:23
  Boeing 777 Passenger
  Operated by United Airlines
Seattle US
SEA05:15
7h 28m
1 Stop
Washington US
IAD15:43
Seattle - Washington
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 05:15
  2h 42m
  1028 Miles
  Denver. US
  DEN 08:57
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2087
  Denver. US
  DEN 10:25
  3h 18m
  1457 Miles
  Washington. US
  IAD 15:43
  Boeing 777 Passenger
  Operated by United Airlines
Seattle US
SEA19:34
8h 16m
1 Stop
Washington US
IAD06:50
+1 day/s
Seattle - Washington
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 19:34
  2h 16m
  683 Miles
  San Francisco. US
  SFO 21:50
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1870
  San Francisco. US
  SFO 22:45
  5h 5m
  2426 Miles
  Washington. US
  IAD 06:50
  Boeing 757-300 Passenger
  Operated by United Airlines
Seattle US
SEA23:59
8h 23m
1 Stop
Washington US
IAD11:22
+1 day/s
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2379
  Seattle. US
  SEA 23:59
  4h 17m
  1883 Miles
  Houston. US
  IAH 06:16
  Airbus A319 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1549
  Houston. US
  IAH 07:20
  3h 2m
  1195 Miles
  Washington. US
  IAD 11:22
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
Seattle US
SEA05:00
8h 29m
1 Stop
Washington US
IAD16:29
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 608
  Seattle. US
  SEA 05:00
  2h 17m
  683 Miles
  San Francisco. US
  SFO 07:17
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 717
  San Francisco. US
  SFO 08:25
  5h 4m
  2426 Miles
  Washington. US
  IAD 16:29
  Boeing 777 Passenger
  Operated by United Airlines
Seattle US
SEA17:40
8h 33m
1 Stop
Washington US
IAD05:13
+1 day/s
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2482
  Seattle. US
  SEA 17:40
  2h 13m
  683 Miles
  San Francisco. US
  SFO 19:53
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2110
  San Francisco. US
  SFO 21:15
  4h 58m
  2426 Miles
  Washington. US
  IAD 05:13
  Boeing 757-300 Passenger
  Operated by United Airlines
Seattle US
SEA09:18
8h 46m
1 Stop
Washington US
IAD21:04
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 5340
  Seattle. US
  SEA 09:18
  2h 26m
  683 Miles
  San Francisco. US
  SFO 11:44
  Embraer 175 (Enhanced Winglets)
  Operated by United Airlines
2. Flight 2United Airlines UA 755
  San Francisco. US
  SFO 13:08
  4h 56m
  2426 Miles
  Washington. US
  IAD 21:04
  Boeing 787-8
  Operated by United Airlines
Seattle US
SEA12:55
9h 10m
1 Stop
Washington US
IAD01:05
+1 day/s
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1482
  Seattle. US
  SEA 12:55
  2h 19m
  683 Miles
  San Francisco. US
  SFO 15:14
  Airbus A319 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1849
  San Francisco. US
  SFO 16:59
  5h 6m
  2426 Miles
  Washington. US
  IAD 01:05
  Boeing 737-900 Passenger
  Operated by United Airlines
Seattle US
SEA23:25
9h 21m
1 Stop
Washington US
IAD11:46
+1 day/s
Seattle - Washington
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 23:25
  5h 4m
  2408 Miles
  New York. US
  EWR 07:29
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2United Airlines UA 3484
  New York. US
  EWR 10:15
  1h 31m
  212 Miles
  Washington. US
  IAD 11:46
  Embraer 175 (Enhanced Winglets)
  Operated by United Airlines
Seattle US
SEA19:34
9h 35m
1 Stop
Washington US
IAD08:09
+1 day/s
Seattle - Washington
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 19:34
  2h 16m
  683 Miles
  San Francisco. US
  SFO 21:50
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2370
  San Francisco. US
  SFO 23:59
  5h 10m
  2426 Miles
  Washington. US
  IAD 08:09
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
Seattle US
SEA06:15
9h 41m
1 Stop
Washington US
IAD18:56
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2113
  Seattle. US
  SEA 06:15
  2h 46m
  960 Miles
  Los Angeles. US
  LAX 09:01
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2United Airlines UA 2667
  Los Angeles. US
  LAX 11:03
  4h 53m
  2296 Miles
  Washington. US
  IAD 18:56
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
Seattle US
SEA07:00
9h 42m
1 Stop
Washington US
IAD19:42
Seattle - Washington
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 21m
  683 Miles
  San Francisco. US
  SFO 09:21
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2312
  San Francisco. US
  SFO 11:31
  5h 11m
  2426 Miles
  Washington. US
  IAD 19:42
  Boeing 737-900 Passenger
  Operated by United Airlines
Seattle US
SEA17:40
10h 10m
1 Stop
Washington US
IAD06:50
+1 day/s
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2482
  Seattle. US
  SEA 17:40
  2h 13m
  683 Miles
  San Francisco. US
  SFO 19:53
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1870
  San Francisco. US
  SFO 22:45
  5h 5m
  2426 Miles
  Washington. US
  IAD 06:50
  Boeing 757-300 Passenger
  Operated by United Airlines
Seattle US
SEA06:15
11h 58m
2 Stops
Washington US
IAD21:13
Seattle - Washington
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2113
  Seattle. US
  SEA 06:15
  6h 49m
  1725 Miles
  Chicago. US
  ORD 17:02
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2United Airlines UA 444
  Chicago. US
  ORD 18:18
  1h 55m
  590 Miles
  Washington. US
  IAD 21:13
  Boeing 737-800 Passenger
  Operated by United Airlines
Seattle US
SEA15:01
13h 11m
2 Stops
Washington US
IAD07:12
+1 day/s
Seattle - Washington
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 15:01
  7h 38m
  2408 Miles
  New York. US
  EWR 05:04
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2United Airlines UA 1366
  New York. US
  EWR 05:55
  1h 17m
  212 Miles
  Washington. US
  IAD 07:12
  Boeing 737-900 Passenger
  Operated by United Airlines

Start your journey with just one click

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington

Seattle - Washington