United Airlines flights from Boston Logan (BOS) to Seattle-Tacoma (SEA).

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Select flight date:
FLIGHT SCHEDULE
Non-Direct Flights:
Tue,Sun 07:55 Boston Logan (BOS) B 15:44 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 737 MAX 9 (7M9) 10:49 Effective 2026-01-06 through 2026-01-11
Wed,Thu 07:55 Boston Logan (BOS) B 15:44 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 757-200 (752) 10:49 Effective 2026-01-07 through 2026-01-29
Mon,Tue,Fri,Sat 07:55 Boston Logan (BOS) B 15:44 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 757-200 (752) 10:49 Effective 2026-01-09 through 2026-02-02
Sun 07:55 Boston Logan (BOS) B 15:44 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 737 MAX 9 (7M9) 10:49 Effective 2026-01-18 through 2026-02-08
Tue 07:55 Boston Logan (BOS) B 15:54 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 757-200 (752) 10:59 Operates only on 2026-02-03
Thu 07:55 Boston Logan (BOS) B 15:44 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 757-200 (752) 10:49 Operates only on 2026-02-05
Mon,Tue,Fri,Sat 07:55 Boston Logan (BOS) B 15:44 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 757-200 (752) 10:49 Effective 2026-02-06 through 2026-02-10
Wed 07:55 Boston Logan (BOS) B 15:44 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 737 MAX 9 (7M9) 10:49 Operates only on 2026-02-11
Sun 08:00 Boston Logan (BOS) B 16:53 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 737 MAX 9 (7M9) 11:53 Valid until 2026-01-04
Mon-Thu 08:00 Boston Logan (BOS) B 16:52 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 737 MAX 9 (7M9) 11:52 Valid until 2026-01-05
Wed 08:40 Boston Logan (BOS) B 15:44 Seattle-Tacoma (SEA)
United Airlines UA 1008 1-stop Boeing 757-200 (752) 10:04 Operates only on 2026-02-04
Daily 06:01 Boston Logan (BOS) B 12:03 Seattle-Tacoma (SEA)
United Airlines UA 1414 1-stop Boeing 737-900 (739) 9:02 Valid until 2026-01-05
Mon,Wed-Fri,Sun 10:56 Boston Logan (BOS) B 18:27 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:31 Effective 2026-01-07 through 2026-01-18
Sat 10:56 Boston Logan (BOS) B 18:28 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:32 Effective 2026-01-10 through 2026-01-17
Mon,Sat 10:56 Boston Logan (BOS) B 18:28 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:32 Effective 2026-01-19 through 2026-02-09
Wed-Fri,Sun 10:56 Boston Logan (BOS) B 18:27 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:31 Effective 2026-01-21 through 2026-01-25
Wed 10:56 Boston Logan (BOS) B 18:26 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:30 Operates only on 2026-01-28
Thu,Fri,Sun 10:56 Boston Logan (BOS) B 18:27 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:31 Effective 2026-01-29 through 2026-02-08
Wed 10:56 Boston Logan (BOS) B 18:27 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:31 Operates only on 2026-02-11
Mon-Wed,Sat,Sun 11:00 Boston Logan (BOS) B 18:45 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 737 MAX 9 (7M9) 10:45 Valid until 2026-01-05
Thu,Fri 11:00 Boston Logan (BOS) B 18:45 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:45 Valid until 2026-01-02
Mon-Thu,Sun 11:00 Boston Logan (BOS) B 18:26 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:26 Effective 2026-02-12 through 2026-02-26
Fri 11:00 Boston Logan (BOS) B 18:31 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:31 Effective 2026-02-13 through 2026-02-27
Sat 11:00 Boston Logan (BOS) B 18:27 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:27 Effective 2026-02-14 through 2026-02-28
Mon-Wed 11:00 Boston Logan (BOS) B 18:26 Seattle-Tacoma (SEA)
United Airlines UA 2279 1-stop Boeing 757-200 (752) 10:26 Effective 2026-03-02 through 2026-03-04
Daily 08:00 Boston Logan (BOS) B 21:12 Seattle-Tacoma (SEA)
United Airlines UA 360 2-stop Boeing 737 MAX 9 (7M9) 16:12 Effective 2026-04-30 through 2026-05-20
Daily 08:00 Boston Logan (BOS) B 21:12 Seattle-Tacoma (SEA)
United Airlines UA 360 2-stop Boeing 757-200 (752) 16:12 Effective from 2026-05-21
Daily 08:28 Boston Logan (BOS) B 21:07 Seattle-Tacoma (SEA)
United Airlines UA 360 2-stop Boeing 737 MAX 9 (7M9) 15:39 Effective 2026-03-29 through 2026-04-29
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United Airlines flights from Boston Logan (BOS) to Seattle-Tacoma (SEA).
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Select flight date:
FLIGHT SCHEDULE
Non-Direct Flights:
United Airlines UA1008
07:55
Boston Logan (BOS) B

15:44
Seattle-Tacoma (SEA)
Effective 2026-01-06 through 2026-01-11
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 10:49, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1008
07:55
Boston Logan (BOS) B

15:44
Seattle-Tacoma (SEA)
Effective 2026-01-07 through 2026-01-29
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 10:49, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA1008
07:55
Boston Logan (BOS) B

15:44
Seattle-Tacoma (SEA)
Effective 2026-01-09 through 2026-02-02
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
-
Duration: 10:49, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA1008
07:55
Boston Logan (BOS) B

15:44
Seattle-Tacoma (SEA)
Effective 2026-01-18 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 10:49, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1008
07:55
Boston Logan (BOS) B

15:54
Seattle-Tacoma (SEA)
Operates only on 2026-02-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 10:59, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA1008
07:55
Boston Logan (BOS) B

15:44
Seattle-Tacoma (SEA)
Operates only on 2026-02-05
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 10:49, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA1008
07:55
Boston Logan (BOS) B

15:44
Seattle-Tacoma (SEA)
Effective 2026-02-06 through 2026-02-10
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
-
Duration: 10:49, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA1008
07:55
Boston Logan (BOS) B

15:44
Seattle-Tacoma (SEA)
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 10:49, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1008
08:00
Boston Logan (BOS) B

16:53
Seattle-Tacoma (SEA)
Valid until 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 11:53, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1008
08:00
Boston Logan (BOS) B

16:52
Seattle-Tacoma (SEA)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 11:52, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1008
08:40
Boston Logan (BOS) B

15:44
Seattle-Tacoma (SEA)
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 10:04, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA1414
06:01
Boston Logan (BOS) B

12:03
Seattle-Tacoma (SEA)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 9:02, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA2279
10:56
Boston Logan (BOS) B

18:27
Seattle-Tacoma (SEA)
Effective 2026-01-07 through 2026-01-18
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 10:31, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
10:56
Boston Logan (BOS) B

18:28
Seattle-Tacoma (SEA)
Effective 2026-01-10 through 2026-01-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 10:32, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
10:56
Boston Logan (BOS) B

18:28
Seattle-Tacoma (SEA)
Effective 2026-01-19 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 10:32, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
10:56
Boston Logan (BOS) B

18:27
Seattle-Tacoma (SEA)
Effective 2026-01-21 through 2026-01-25
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 10:31, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
10:56
Boston Logan (BOS) B

18:26
Seattle-Tacoma (SEA)
Operates only on 2026-01-28
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 10:30, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
10:56
Boston Logan (BOS) B

18:27
Seattle-Tacoma (SEA)
Effective 2026-01-29 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 10:31, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
10:56
Boston Logan (BOS) B

18:27
Seattle-Tacoma (SEA)
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 10:31, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
11:00
Boston Logan (BOS) B

18:45
Seattle-Tacoma (SEA)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
-
Fri
-
Sat
Sun
Duration: 10:45, 1-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA2279
11:00
Boston Logan (BOS) B

18:45
Seattle-Tacoma (SEA)
Valid until 2026-01-02
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 10:45, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
11:00
Boston Logan (BOS) B

18:26
Seattle-Tacoma (SEA)
Effective 2026-02-12 through 2026-02-26
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 10:26, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
11:00
Boston Logan (BOS) B

18:31
Seattle-Tacoma (SEA)
Effective 2026-02-13 through 2026-02-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 10:31, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
11:00
Boston Logan (BOS) B

18:27
Seattle-Tacoma (SEA)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 10:27, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA2279
11:00
Boston Logan (BOS) B

18:26
Seattle-Tacoma (SEA)
Effective 2026-03-02 through 2026-03-04
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 10:26, 1-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA360
08:00
Boston Logan (BOS) B

21:12
Seattle-Tacoma (SEA)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 16:12, 2-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA360
08:00
Boston Logan (BOS) B

21:12
Seattle-Tacoma (SEA)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 16:12, 2-stop
Boeing 757-200 (752)
Non-Direct Flights:
United Airlines UA360
08:28
Boston Logan (BOS) B

21:07
Seattle-Tacoma (SEA)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 15:39, 2-stop
Boeing 737 MAX 9 (7M9)
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Parallax here BOS-SEA
  • A domestic route departing from the Boston Logan airport (BOS) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 2487 miles, or 4003 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
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