All airlines flying from Boston Logan (BOS) to Seattle-Tacoma (SEA).

FLIGHT SCHEDULE
Direct Flights:
Daily 15:25 Boston Logan (BOS) B 18:45 Seattle-Tacoma (SEA) Alaska Airlines AS 105 Non-stop Boeing 737 (73J) 6:20 Effective 2026-06-10 through 2026-08-18
Sat 19:05 Boston Logan (BOS) C 22:35 Seattle-Tacoma (SEA) JetBlue B6 197 Non-stop Airbus A321 (321) 6:30 Effective 2026-06-13 through 2026-09-05
Mon-Fri,Sun 19:10 Boston Logan (BOS) C 22:40 Seattle-Tacoma (SEA) JetBlue B6 197 Non-stop Airbus A321 (321) 6:30 Effective 2026-06-11 through 2026-09-08
Mon,Tue,Fri,Sat 09:08 Boston Logan (BOS) B 12:27 Seattle-Tacoma (SEA) Alaska Airlines AS 215 Non-stop Boeing 737-800 (73H) 6:19 Valid until 2026-01-03
Thu,Sun 09:08 Boston Logan (BOS) B 12:27 Seattle-Tacoma (SEA) Alaska Airlines AS 215 Non-stop Boeing 737 MAX 9 (7M9) 6:19 Valid until 2026-01-04
Mon 09:08 Boston Logan (BOS) B 12:27 Seattle-Tacoma (SEA) Alaska Airlines AS 215 Non-stop Boeing 737 MAX 8 (7M8) 6:19 Operates only on 2026-01-05
Tue 09:08 Boston Logan (BOS) B 12:27 Seattle-Tacoma (SEA) Alaska Airlines AS 215 Non-stop Boeing 737-800 (73H) 6:19 Operates only on 2026-01-06
Tue-Sun 18:24 Boston Logan (BOS) B 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 299 Non-stop Boeing 737 MAX 9 (7M9) 6:36 Effective 2026-02-12 through 2026-03-10
Mon 18:24 Boston Logan (BOS) B 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 299 Non-stop Boeing 737 MAX 8 (7M8) 6:36 Effective 2026-02-16 through 2026-03-09
Mon,Wed 18:24 Boston Logan (BOS) B 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 299 Non-stop Boeing 737 (73J) 6:36 Effective 2026-03-11 through 2026-03-16
Tue,Thu-Sun 18:24 Boston Logan (BOS) B 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 299 Non-stop Boeing 737 MAX 9 (7M9) 6:36 Effective 2026-03-12 through 2026-03-17
Daily 16:25 Boston Logan (BOS) B 19:51 Seattle-Tacoma (SEA) Alaska Airlines AS 304 Non-stop Boeing 737 (73J) 6:26 Effective from 2026-06-10
Wed 17:55 Boston Logan (BOS) B 21:18 Seattle-Tacoma (SEA) Alaska Airlines AS 306 Non-stop Boeing 737 (73J) 6:23 Operates only on 2026-03-18
Daily 17:55 Boston Logan (BOS) B 21:19 Seattle-Tacoma (SEA) Alaska Airlines AS 306 Non-stop Boeing 737 (73J) 6:24 Effective 2026-03-19 through 2026-05-12
Daily 18:32 Boston Logan (BOS) B 21:58 Seattle-Tacoma (SEA) Alaska Airlines AS 306 Non-stop Boeing 737 (73J) 6:26 Effective from 2026-06-10
Daily 18:52 Boston Logan (BOS) B 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 306 Non-stop Boeing 737 (73J) 6:08 Effective 2026-05-13 through 2026-06-09
Mon,Sun 18:06 Boston Logan (BOS) B 21:30 Seattle-Tacoma (SEA) Alaska Airlines AS 307 Non-stop Boeing 737-800 (73H) 6:24 Valid until 2026-01-04
Thu-Sat 18:06 Boston Logan (BOS) B 21:30 Seattle-Tacoma (SEA) Alaska Airlines AS 307 Non-stop Boeing 737 MAX 9 (7M9) 6:24 Valid until 2026-01-03
Mon 18:06 Boston Logan (BOS) B 21:30 Seattle-Tacoma (SEA) Alaska Airlines AS 307 Non-stop Boeing 737 MAX 8 (7M8) 6:24 Operates only on 2026-01-05
Tue 18:06 Boston Logan (BOS) B 21:30 Seattle-Tacoma (SEA) Alaska Airlines AS 307 Non-stop Boeing 737-800 (73H) 6:24 Operates only on 2026-01-06
Daily 18:44 Boston Logan (BOS) B 22:17 Seattle-Tacoma (SEA) Alaska Airlines AS 309 Non-stop Boeing 737 MAX 9 (7M9) 6:33 Effective 2026-01-07 through 2026-01-23
Sat 18:44 Boston Logan (BOS) B 22:17 Seattle-Tacoma (SEA) Alaska Airlines AS 309 Non-stop Boeing 737 (73J) 6:33 Operates only on 2026-01-24
Daily 18:44 Boston Logan (BOS) B 22:17 Seattle-Tacoma (SEA) Alaska Airlines AS 309 Non-stop Boeing 737 MAX 9 (7M9) 6:33 Effective 2026-01-25 through 2026-02-10
Wed 18:44 Boston Logan (BOS) B 22:17 Seattle-Tacoma (SEA) Alaska Airlines AS 309 Non-stop Boeing 737 MAX 8 (7M8) 6:33 Operates only on 2026-02-11
Tue,Wed 17:20 Boston Logan (BOS) A 20:44 Seattle-Tacoma (SEA) Delta Air Lines DL 324 Non-stop Airbus A321neo (32Q) 6:24 Effective 2026-01-06 through 2026-02-11
Daily 18:35 Boston Logan (BOS) A 21:50 Seattle-Tacoma (SEA) Delta Air Lines DL 324 Non-stop Airbus A321neo (32Q) 6:15 Valid until 2026-01-04
Daily 18:35 Boston Logan (BOS) A 22:05 Seattle-Tacoma (SEA) Delta Air Lines DL 324 Non-stop Airbus A321neo (32Q) 6:30 Effective 2026-04-13 through 2026-10-05
Daily 18:42 Boston Logan (BOS) A 22:03 Seattle-Tacoma (SEA) Delta Air Lines DL 324 Non-stop Airbus A321neo (32Q) 6:21 Effective 2026-03-08 through 2026-03-14
Daily 18:42 Boston Logan (BOS) A 22:05 Seattle-Tacoma (SEA) Delta Air Lines DL 324 Non-stop Airbus A321neo (32Q) 6:23 Effective 2026-03-15 through 2026-04-12
Mon,Thu-Sun 18:45 Boston Logan (BOS) A 22:13 Seattle-Tacoma (SEA) Delta Air Lines DL 324 Non-stop Airbus A321neo (32Q) 6:28 Effective 2026-01-05 through 2026-02-09
Daily 18:57 Boston Logan (BOS) A 22:25 Seattle-Tacoma (SEA) Delta Air Lines DL 324 Non-stop Airbus A321neo (32Q) 6:28 Effective 2026-02-12 through 2026-03-07
Mon-Fri,Sun 11:00 Boston Logan (BOS) A 14:23 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:23 Effective 2026-04-13 through 2026-05-22
Sat 11:00 Boston Logan (BOS) A 14:40 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:40 Operates only on 2026-05-09
Sat 11:00 Boston Logan (BOS) A 14:40 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:40 Effective 2026-05-16 through 2026-06-06
Sun 11:00 Boston Logan (BOS) A 14:40 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:40 Operates only on 2026-05-24
Mon-Fri,Sun 11:00 Boston Logan (BOS) A 14:23 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:23 Effective 2026-05-25 through 2026-09-04
Sat 11:00 Boston Logan (BOS) A 14:31 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:31 Effective 2026-06-13 through 2026-10-03
Sun 11:00 Boston Logan (BOS) A 14:40 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:40 Operates only on 2026-09-06
Mon-Fri,Sun 11:00 Boston Logan (BOS) A 14:23 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:23 Effective 2026-09-07 through 2026-10-05
Daily 11:00 Boston Logan (BOS) A 14:31 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:31 Effective from 2026-10-06
Mon-Fri,Sun 11:10 Boston Logan (BOS) A 14:29 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:19 Effective 2026-03-08 through 2026-03-13
Mon-Fri,Sun 11:10 Boston Logan (BOS) A 14:31 Seattle-Tacoma (SEA) Delta Air Lines DL 332 Non-stop Airbus A321neo (32Q) 6:21 Effective 2026-03-15 through 2026-04-12
Daily 16:30 Boston Logan (BOS) B 19:41 Seattle-Tacoma (SEA) Alaska Airlines AS 364 Non-stop Boeing 737 (73J) 6:11 Effective 2026-05-13 through 2026-06-09
Mon-Fri,Sun 07:05 Boston Logan (BOS) A 10:32 Seattle-Tacoma (SEA) Delta Air Lines DL 384 Non-stop Airbus A321neo (32Q) 6:27 Effective 2026-04-13 through 2026-05-08
Daily 07:05 Boston Logan (BOS) A 10:32 Seattle-Tacoma (SEA) Delta Air Lines DL 384 Non-stop Airbus A321neo (32Q) 6:27 Effective 2026-05-09 through 2026-10-05
Daily 07:05 Boston Logan (BOS) A 10:43 Seattle-Tacoma (SEA) Delta Air Lines DL 384 Non-stop Airbus A321neo (32Q) 6:38 Effective from 2026-10-06
Mon-Fri,Sun 07:10 Boston Logan (BOS) A 10:35 Seattle-Tacoma (SEA) Delta Air Lines DL 384 Non-stop Airbus A321neo (32Q) 6:25 Effective 2026-03-08 through 2026-03-13
Mon-Fri,Sun 07:10 Boston Logan (BOS) A 10:37 Seattle-Tacoma (SEA) Delta Air Lines DL 384 Non-stop Airbus A321neo (32Q) 6:27 Effective 2026-03-15 through 2026-04-12
Daily 07:15 Boston Logan (BOS) A 10:45 Seattle-Tacoma (SEA) Delta Air Lines DL 384 Non-stop Airbus A321neo (32Q) 6:30 Valid until 2026-03-07
Sat 09:33 Boston Logan (BOS) A 12:58 Seattle-Tacoma (SEA) Delta Air Lines DL 384 Non-stop Airbus A321neo (32Q) 6:25 Operates only on 2026-03-14

1 2 3 4 ... 8 9 10

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.

Return (SEA-BOS) flights

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All airlines flying from Boston Logan (BOS) to Seattle-Tacoma (SEA).

FLIGHT SCHEDULE

Direct Flights:

Alaska Airlines AS105

15:25

Boston Logan (BOS) B

18:45

Seattle-Tacoma (SEA)

Effective 2026-06-10 through 2026-08-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:20, non-stop
Boeing 737 (73J)

Direct Flights:

JetBlue B6197

19:05

Boston Logan (BOS) C

22:35

Seattle-Tacoma (SEA)

Effective 2026-06-13 through 2026-09-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:30, non-stop
Airbus A321 (321)

Direct Flights:

JetBlue B6197

19:10

Boston Logan (BOS) C

22:40

Seattle-Tacoma (SEA)

Effective 2026-06-11 through 2026-09-08

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:30, non-stop
Airbus A321 (321)

Direct Flights:

Alaska Airlines AS215

09:08

Boston Logan (BOS) B

12:27

Seattle-Tacoma (SEA)

Valid until 2026-01-03

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 6:19, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS215

09:08

Boston Logan (BOS) B

12:27

Seattle-Tacoma (SEA)

Valid until 2026-01-04

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 6:19, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS215

09:08

Boston Logan (BOS) B

12:27

Seattle-Tacoma (SEA)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:19, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Alaska Airlines AS215

09:08

Boston Logan (BOS) B

12:27

Seattle-Tacoma (SEA)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:19, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS299

18:24

Boston Logan (BOS) B

22:00

Seattle-Tacoma (SEA)

Effective 2026-02-12 through 2026-03-10

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:36, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS299

18:24

Boston Logan (BOS) B

22:00

Seattle-Tacoma (SEA)

Effective 2026-02-16 through 2026-03-09

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:36, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Alaska Airlines AS299

18:24

Boston Logan (BOS) B

22:00

Seattle-Tacoma (SEA)

Effective 2026-03-11 through 2026-03-16

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:36, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS299

18:24

Boston Logan (BOS) B

22:00

Seattle-Tacoma (SEA)

Effective 2026-03-12 through 2026-03-17

Mon
-

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 6:36, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS304

16:25

Boston Logan (BOS) B

19:51

Seattle-Tacoma (SEA)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:26, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS306

17:55

Boston Logan (BOS) B

21:18

Seattle-Tacoma (SEA)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:23, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS306

17:55

Boston Logan (BOS) B

21:19

Seattle-Tacoma (SEA)

Effective 2026-03-19 through 2026-05-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:24, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS306

18:32

Boston Logan (BOS) B

21:58

Seattle-Tacoma (SEA)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:26, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS306

18:52

Boston Logan (BOS) B

22:00

Seattle-Tacoma (SEA)

Effective 2026-05-13 through 2026-06-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:08, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS307

18:06

Boston Logan (BOS) B

21:30

Seattle-Tacoma (SEA)

Valid until 2026-01-04

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 6:24, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS307

18:06

Boston Logan (BOS) B

21:30

Seattle-Tacoma (SEA)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

Duration: 6:24, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS307

18:06

Boston Logan (BOS) B

21:30

Seattle-Tacoma (SEA)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:24, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Alaska Airlines AS307

18:06

Boston Logan (BOS) B

21:30

Seattle-Tacoma (SEA)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:24, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS309

18:44

Boston Logan (BOS) B

22:17

Seattle-Tacoma (SEA)

Effective 2026-01-07 through 2026-01-23

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:33, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS309

18:44

Boston Logan (BOS) B

22:17

Seattle-Tacoma (SEA)

Operates only on 2026-01-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:33, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS309

18:44

Boston Logan (BOS) B

22:17

Seattle-Tacoma (SEA)

Effective 2026-01-25 through 2026-02-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:33, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS309

18:44

Boston Logan (BOS) B

22:17

Seattle-Tacoma (SEA)

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:33, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Delta Air Lines DL324

17:20

Boston Logan (BOS) A

20:44

Seattle-Tacoma (SEA)

Effective 2026-01-06 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:24, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL324

18:35

Boston Logan (BOS) A

21:50

Seattle-Tacoma (SEA)

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:15, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL324

18:35

Boston Logan (BOS) A

22:05

Seattle-Tacoma (SEA)

Effective 2026-04-13 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:30, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL324

18:42

Boston Logan (BOS) A

22:03

Seattle-Tacoma (SEA)

Effective 2026-03-08 through 2026-03-14

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:21, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL324

18:42

Boston Logan (BOS) A

22:05

Seattle-Tacoma (SEA)

Effective 2026-03-15 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:23, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL324

18:45

Boston Logan (BOS) A

22:13

Seattle-Tacoma (SEA)

Effective 2026-01-05 through 2026-02-09

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 6:28, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL324

18:57

Boston Logan (BOS) A

22:25

Seattle-Tacoma (SEA)

Effective 2026-02-12 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:28, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:00

Boston Logan (BOS) A

14:23

Seattle-Tacoma (SEA)

Effective 2026-04-13 through 2026-05-22

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:23, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:00

Boston Logan (BOS) A

14:40

Seattle-Tacoma (SEA)

Operates only on 2026-05-09

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:40, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:00

Boston Logan (BOS) A

14:40

Seattle-Tacoma (SEA)

Effective 2026-05-16 through 2026-06-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:40, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:00

Boston Logan (BOS) A

14:40

Seattle-Tacoma (SEA)

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 6:40, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:00

Boston Logan (BOS) A

14:23

Seattle-Tacoma (SEA)

Effective 2026-05-25 through 2026-09-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:23, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:00

Boston Logan (BOS) A

14:31

Seattle-Tacoma (SEA)

Effective 2026-06-13 through 2026-10-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:31, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:00

Boston Logan (BOS) A

14:40

Seattle-Tacoma (SEA)

Operates only on 2026-09-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 6:40, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:00

Boston Logan (BOS) A

14:23

Seattle-Tacoma (SEA)

Effective 2026-09-07 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:23, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:00

Boston Logan (BOS) A

14:31

Seattle-Tacoma (SEA)

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:31, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:10

Boston Logan (BOS) A

14:29

Seattle-Tacoma (SEA)

Effective 2026-03-08 through 2026-03-13

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:19, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL332

11:10

Boston Logan (BOS) A

14:31

Seattle-Tacoma (SEA)

Effective 2026-03-15 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:21, non-stop
Airbus A321neo (32Q)

Direct Flights:

Alaska Airlines AS364

16:30

Boston Logan (BOS) B

19:41

Seattle-Tacoma (SEA)

Effective 2026-05-13 through 2026-06-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:11, non-stop
Boeing 737 (73J)

Direct Flights:

Delta Air Lines DL384

07:05

Boston Logan (BOS) A

10:32

Seattle-Tacoma (SEA)

Effective 2026-04-13 through 2026-05-08

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:27, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL384

07:05

Boston Logan (BOS) A

10:32

Seattle-Tacoma (SEA)

Effective 2026-05-09 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:27, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL384

07:05

Boston Logan (BOS) A

10:43

Seattle-Tacoma (SEA)

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:38, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL384

07:10

Boston Logan (BOS) A

10:35

Seattle-Tacoma (SEA)

Effective 2026-03-08 through 2026-03-13

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:25, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL384

07:10

Boston Logan (BOS) A

10:37

Seattle-Tacoma (SEA)

Effective 2026-03-15 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:27, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL384

07:15

Boston Logan (BOS) A

10:45

Seattle-Tacoma (SEA)

Valid until 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:30, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL384

09:33

Boston Logan (BOS) A

12:58

Seattle-Tacoma (SEA)

Operates only on 2026-03-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:25, non-stop
Airbus A321neo (32Q)

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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.

Return (SEA-BOS) flights

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