Flights from Seattle (SEA) to Boston (BOS) with Star Alliance
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*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 Boston
Monday
moderate rain
31/03/2025
16°C
31/03/2025
moderate rain
Tuesday
heavy intensity rain
01/04/2025
10°C
01/04/2025
heavy intensity rain
Wednesday
light snow
02/04/2025
5°C
02/04/2025
light snow
Thursday
moderate rain
03/04/2025
12°C
03/04/2025
moderate rain
Friday
overcast clouds
04/04/2025
10°C
04/04/2025
overcast clouds
Saturday
moderate rain
05/04/2025
4°C
05/04/2025
moderate rain
Sunday
light rain
06/04/2025
6°C
06/04/2025
light rain
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.
- Seattle USSEA07:007h 22m1 StopBoston USBOS17:22
Seattle - Boston
United Airlines - Seattle USSEA23:597h 39m1 StopBoston USBOS10:38+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA14:187h 40m1 StopBoston USBOS00:58+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA19:177h 41m1 StopBoston USBOS05:58+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA05:007h 43m1 StopBoston USBOS15:43
Seattle - Boston
United Airlines - Seattle USSEA23:357h 47m1 StopBoston USBOS10:22+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA12:547h 58m1 StopBoston USBOS23:52
Seattle - Boston
United Airlines - Seattle USSEA10:507h 59m1 StopBoston USBOS21:49
Seattle - Boston
United Airlines - Seattle USSEA08:508h 5m1 StopBoston USBOS19:55
Seattle - Boston
United Airlines - Seattle USSEA08:158h 7m1 StopBoston USBOS19:22
Seattle - Boston
United Airlines - Seattle USSEA12:468h 13m1 StopBoston USBOS23:59
Seattle - Boston
United Airlines - Seattle USSEA05:009h 22m2 StopsBoston USBOS17:22
Seattle - Boston
United Airlines - Seattle USSEA07:009h 28m1 StopBoston USBOS19:28
Seattle - Boston
United Airlines - Seattle USSEA23:599h 28m1 StopBoston USBOS12:27+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA19:339h 39m1 StopBoston USBOS08:12+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA07:089h 43m1 StopBoston USBOS19:51
Seattle - Boston
United Airlines - Seattle USSEA07:159h 51m1 StopBoston USBOS20:06
Seattle - Boston
United Airlines - Seattle USSEA23:599h 55m2 StopsBoston USBOS12:54+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA08:509h 59m2 StopsBoston USBOS21:49
Seattle - Boston
United Airlines - Seattle USSEA17:0510h 8m1 StopBoston USBOS06:13+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA19:1710h 25m2 StopsBoston USBOS08:42+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA07:0010h 47m2 StopsBoston USBOS20:47
Seattle - Boston
United Airlines - Seattle USSEA05:1511h 7m2 StopsBoston USBOS19:22
Seattle - Boston
United Airlines - Seattle USSEA17:1011h 11m1 StopBoston USBOS07:21+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA05:1511h 13m2 StopsBoston USBOS19:28
Seattle - Boston
United Airlines - Seattle USSEA08:1511h 17m2 StopsBoston USBOS22:32
Seattle - Boston
United Airlines - Seattle USSEA05:0011h 22m2 StopsBoston USBOS19:22
Seattle - Boston
United Airlines - Seattle USSEA05:0011h 28m2 StopsBoston USBOS19:28
Seattle - Boston
United Airlines - Seattle USSEA05:0011h 28m2 StopsBoston USBOS19:28
Seattle - Boston
United Airlines - Seattle USSEA07:1511h 34m2 StopsBoston USBOS21:49
Seattle - Boston
United Airlines - Seattle USSEA15:2411h 34m2 StopsBoston USBOS05:58+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA05:1511h 40m2 StopsBoston USBOS19:55
Seattle - Boston
United Airlines - Seattle USSEA07:0811h 41m2 StopsBoston USBOS21:49
Seattle - Boston
United Airlines - Seattle USSEA09:1011h 42m2 StopsBoston USBOS23:52
Seattle - Boston
United Airlines - Seattle USSEA07:1511h 43m2 StopsBoston USBOS21:58
Seattle - Boston
United Airlines - Seattle USSEA19:3311h 45m2 StopsBoston USBOS10:18+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA23:5911h 47m2 StopsBoston USBOS14:46+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA19:3311h 49m2 StopsBoston USBOS10:22+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA05:0011h 51m2 StopsBoston USBOS19:51
Seattle - Boston
United Airlines - Seattle USSEA08:5011h 54m2 StopsBoston USBOS23:44
Seattle - Boston
United Airlines - Seattle USSEA19:3312h 5m2 StopsBoston USBOS10:38+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA19:3312h 5m2 StopsBoston USBOS10:38+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA19:3312h 5m2 StopsBoston USBOS10:38+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA23:5912h 20m2 StopsBoston USBOS15:19+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA23:5912h 20m2 StopsBoston USBOS15:19+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA17:1012h 32m2 StopsBoston USBOS08:42+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA05:1512h 32m2 StopsBoston USBOS20:47
Seattle - Boston
United Airlines - Seattle USSEA06:1512h 34m2 StopsBoston USBOS21:49
Seattle - Boston
United Airlines - Seattle USSEA17:0512h 37m2 StopsBoston USBOS08:42+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA06:1512h 43m2 StopsBoston USBOS21:58
Seattle - Boston
United Airlines - Seattle USSEA09:1012h 48m2 StopsBoston USBOS00:58+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA15:2412h 57m2 StopsBoston USBOS07:21+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA06:1513h 17m2 StopsBoston USBOS22:32
Seattle - Boston
United Airlines - Seattle USSEA23:5913h 23m2 StopsBoston USBOS16:22+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA07:1513h 37m2 StopsBoston USBOS23:52
Seattle - Boston
United Airlines - Seattle USSEA12:5514h 3m2 StopsBoston USBOS05:58+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA17:1014h 8m3 StopsBoston USBOS10:18+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA19:3314h 15m2 StopsBoston USBOS12:48+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA15:2414h 18m2 StopsBoston USBOS08:42+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA07:1514h 43m3 StopsBoston USBOS00:58+1 day/s
Seattle - Boston
United Airlines - Seattle USSEA06:1515h 43m3 StopsBoston USBOS00:58+1 day/s
Seattle - Boston
United Airlines