All airlines flying from Boston Logan (BOS) to Seattle-Tacoma (SEA).
| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Sat
09:33
Boston Logan (BOS) A
13:00
Seattle-Tacoma (SEA) Delta Air Lines DL 384 Non-stop Airbus A321neo (32Q) 6:27 Effective 2026-03-21 through 2026-05-02 |
| Daily
07:00
Boston Logan (BOS) C
10:20
Seattle-Tacoma (SEA) JetBlue B6 397 Non-stop Airbus A321 (321) 6:20 Effective 2026-04-30 through 2026-09-08 |
| Daily
07:00
Boston Logan (BOS) C
10:19
Seattle-Tacoma (SEA) JetBlue B6 397 Non-stop Airbus A321 (321) 6:19 Effective 2026-09-09 through 2026-10-24 |
| Mon-Fri,Sun
07:00
Boston Logan (BOS) B
10:34
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 MAX 9 (7M9) 6:34 Effective 2026-01-07 through 2026-01-14 |
| Thu-Sat
07:00
Boston Logan (BOS) B
10:34
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:34 Effective 2026-01-10 through 2026-01-16 |
| Mon-Wed,Fri-Sun
07:00
Boston Logan (BOS) B
10:34
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 MAX 9 (7M9) 6:34 Effective 2026-01-17 through 2026-01-28 |
| Thu
07:00
Boston Logan (BOS) B
10:34
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:34 Effective 2026-01-22 through 2026-02-05 |
| Fri
07:00
Boston Logan (BOS) B
10:34
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737-800 (73H) 6:34 Operates only on 2026-01-30 |
| Mon-Wed,Sat,Sun
07:00
Boston Logan (BOS) B
10:34
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 MAX 9 (7M9) 6:34 Effective 2026-01-31 through 2026-02-11 |
| Fri
07:00
Boston Logan (BOS) B
10:34
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:34 Operates only on 2026-02-06 |
| Tue-Sun
07:00
Boston Logan (BOS) B
10:33
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 MAX 9 (7M9) 6:33 Effective 2026-02-12 through 2026-02-19 |
| Mon
07:00
Boston Logan (BOS) B
10:33
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737-800 (73H) 6:33 Effective 2026-02-16 through 2026-02-23 |
| Thu,Fri
07:00
Boston Logan (BOS) B
10:33
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:33 Effective 2026-02-20 through 2026-02-27 |
| Tue,Wed,Sat,Sun
07:00
Boston Logan (BOS) B
10:33
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 MAX 9 (7M9) 6:33 Effective 2026-02-21 through 2026-03-04 |
| Mon,Thu-Sun
07:00
Boston Logan (BOS) B
10:33
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:33 Effective 2026-03-02 through 2026-03-08 |
| Mon-Wed,Sat
07:00
Boston Logan (BOS) B
10:33
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 MAX 9 (7M9) 6:33 Effective 2026-03-09 through 2026-03-14 |
| Mon,Thu,Fri,Sun
07:00
Boston Logan (BOS) B
10:33
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:33 Effective 2026-03-12 through 2026-03-16 |
| Tue
07:00
Boston Logan (BOS) B
10:33
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 MAX 9 (7M9) 6:33 Operates only on 2026-03-17 |
| Wed
07:00
Boston Logan (BOS) B
10:23
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:23 Operates only on 2026-03-18 |
| Daily
07:00
Boston Logan (BOS) B
10:28
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:28 Effective 2026-03-19 through 2026-05-12 |
| Daily
07:20
Boston Logan (BOS) B
10:42
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:22 Effective from 2026-06-10 |
| Mon-Sat
07:30
Boston Logan (BOS) B
10:52
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 MAX 9 (7M9) 6:22 Valid until 2026-01-05 |
| Sun
07:30
Boston Logan (BOS) B
10:52
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:22 Operates only on 2026-01-04 |
| Tue
07:30
Boston Logan (BOS) B
10:52
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737-800 (73H) 6:22 Operates only on 2026-01-06 |
| Daily
07:30
Boston Logan (BOS) B
10:40
Seattle-Tacoma (SEA) Alaska Airlines AS 459 Non-stop Boeing 737 (73J) 6:10 Effective 2026-05-13 through 2026-06-09 |
| Daily
09:00
Boston Logan (BOS) B
12:09
Seattle-Tacoma (SEA) Alaska Airlines AS 537 Non-stop Boeing 737 (73J) 6:09 Effective 2026-05-13 through 2026-06-09 |
| Daily
09:02
Boston Logan (BOS) B
12:35
Seattle-Tacoma (SEA) Alaska Airlines AS 537 Non-stop Boeing 737 MAX 9 (7M9) 6:33 Effective 2026-02-13 through 2026-02-26 |
| Fri
09:02
Boston Logan (BOS) B
12:35
Seattle-Tacoma (SEA) Alaska Airlines AS 537 Non-stop Boeing 737 (73J) 6:33 Operates only on 2026-02-27 |
| Daily
09:02
Boston Logan (BOS) B
12:35
Seattle-Tacoma (SEA) Alaska Airlines AS 537 Non-stop Boeing 737 MAX 9 (7M9) 6:33 Effective 2026-02-28 through 2026-03-12 |
| Mon,Fri,Sun
09:02
Boston Logan (BOS) B
12:35
Seattle-Tacoma (SEA) Alaska Airlines AS 537 Non-stop Boeing 737 (73J) 6:33 Effective 2026-03-13 through 2026-03-16 |
| Tue,Sat
09:02
Boston Logan (BOS) B
12:35
Seattle-Tacoma (SEA) Alaska Airlines AS 537 Non-stop Boeing 737 MAX 9 (7M9) 6:33 Effective 2026-03-14 through 2026-03-17 |
| Daily
09:20
Boston Logan (BOS) B
12:40
Seattle-Tacoma (SEA) Alaska Airlines AS 537 Non-stop Boeing 737 (73J) 6:20 Effective from 2026-06-10 |
| Wed
10:00
Boston Logan (BOS) B
13:23
Seattle-Tacoma (SEA) Alaska Airlines AS 537 Non-stop Boeing 737 (73J) 6:23 Operates only on 2026-03-18 |
| Daily
10:00
Boston Logan (BOS) B
13:26
Seattle-Tacoma (SEA) Alaska Airlines AS 537 Non-stop Boeing 737 (73J) 6:26 Effective 2026-03-19 through 2026-05-12 |
| Daily
18:35
Boston Logan (BOS) A
22:09
Seattle-Tacoma (SEA) Delta Air Lines DL 797 Non-stop Airbus A321neo (32Q) 6:34 Effective from 2026-10-06 |
| Mon-Fri,Sun
15:30
Boston Logan (BOS) A
19:00
Seattle-Tacoma (SEA) Delta Air Lines DL 2889 Non-stop Airbus A321neo (32Q) 6:30 Effective 2026-05-07 through 2026-05-22 |
| Mon-Fri,Sun
15:30
Boston Logan (BOS) A
19:00
Seattle-Tacoma (SEA) Delta Air Lines DL 2889 Non-stop Airbus A321neo (32Q) 6:30 Effective 2026-05-25 through 2026-10-05 |
| Mon-Fri,Sun
15:30
Boston Logan (BOS) A
18:59
Seattle-Tacoma (SEA) Delta Air Lines DL 2889 Non-stop Airbus A321neo (32Q) 6:29 Effective from 2026-10-06 |
| Sun
19:56
Boston Logan (BOS) A
23:16
Seattle-Tacoma (SEA) Delta Air Lines DL 8795 Non-stop Boeing 737-800 (738) 6:20 Operates only on 2026-01-04 |
| 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 |
- 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.
- For direct flights, the flight time varies between 6:08 and 6:40.
