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

FLIGHT SCHEDULE
Direct Flights:
Mon,Tue,Fri-Sun 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-01-30 through 2026-02-10
Thu 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 (73J) 5:14 Operates only on 2026-02-05
Wed 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Operates only on 2026-02-11
Daily 15:40 Seattle-Tacoma (SEA) 00:06 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 (73J) 5:26 Effective 2026-05-13 through 2026-06-09 The flight arrives 1 day after departure.
Mon-Sat 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 MAX 9 (7M9) 5:17 Effective 2026-02-12 through 2026-02-18
Sun 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737-800 (73H) 5:17 Effective 2026-02-15 through 2026-02-22
Wed,Thu 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 (73J) 5:17 Effective 2026-02-19 through 2026-02-26
Mon,Tue,Fri,Sat 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 MAX 9 (7M9) 5:17 Effective 2026-02-20 through 2026-03-03
Wed-Sun 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 (73J) 5:17 Effective 2026-03-01 through 2026-03-07
Mon,Tue,Fri,Sun 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 MAX 9 (7M9) 5:17 Effective 2026-03-08 through 2026-03-13
Tue-Thu,Sat,Sun 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 (73J) 5:17 Effective 2026-03-11 through 2026-03-17
Mon 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 MAX 9 (7M9) 5:17 Operates only on 2026-03-16
Daily 15:43 Seattle-Tacoma (SEA) 00:05 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 (73J) 5:22 Effective from 2026-06-10 The flight arrives 1 day after departure.
Mon-Wed,Fri,Sun 15:59 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 MAX 9 (7M9) 5:24 Valid until 2026-01-04 The flight arrives 1 day after departure.
Thu,Sat 15:59 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737 (73J) 5:24 Valid until 2026-01-03 The flight arrives 1 day after departure.
Mon 15:59 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B Alaska Airlines AS 460 Non-stop Boeing 737-800 (73H) 5:24 Operates only on 2026-01-05 The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:35 Boston Logan (BOS) A Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:35 Effective 2026-04-13 through 2026-10-05 The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:33 Boston Logan (BOS) A Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:33 Effective from 2026-10-06 The flight arrives 1 day after departure.
Daily 22:20 Seattle-Tacoma (SEA) 06:50 Boston Logan (BOS) A Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:30 Effective 2026-02-12 through 2026-03-06 The flight arrives 1 day after departure.
Sat 22:20 Seattle-Tacoma (SEA) 07:48 Boston Logan (BOS) A Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:28 Operates only on 2026-03-07 The flight arrives 1 day after departure.
Mon-Thu,Sat,Sun 22:25 Seattle-Tacoma (SEA) 06:50 Boston Logan (BOS) A Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:25 Effective 2026-01-05 through 2026-02-11 The flight arrives 1 day after departure.
Fri 22:25 Seattle-Tacoma (SEA) 06:53 Boston Logan (BOS) A Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:28 Effective 2026-01-09 through 2026-02-06 The flight arrives 1 day after departure.
Daily 22:25 Seattle-Tacoma (SEA) 06:49 Boston Logan (BOS) A Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:24 Effective 2026-03-08 through 2026-03-14 The flight arrives 1 day after departure.
Daily 22:25 Seattle-Tacoma (SEA) 06:50 Boston Logan (BOS) A Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:25 Effective 2026-03-15 through 2026-04-12 The flight arrives 1 day after departure.
Daily 23:00 Seattle-Tacoma (SEA) 07:29 Boston Logan (BOS) A Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:29 Valid until 2026-01-04 The flight arrives 1 day after departure.
Mon-Fri,Sun 15:43 Seattle-Tacoma (SEA) 23:58 Boston Logan (BOS) A Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:15 Effective 2026-03-08 through 2026-03-13
Mon-Fri,Sun 15:43 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) A Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:16 Effective 2026-03-15 through 2026-04-12
Mon-Fri,Sun 15:55 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) A Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:28 Effective 2026-04-13 through 2026-05-22 The flight arrives 1 day after departure.
Mon-Fri,Sun 15:55 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) A Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:28 Effective 2026-05-25 through 2026-09-04 The flight arrives 1 day after departure.
Sun 15:55 Seattle-Tacoma (SEA) 00:27 Boston Logan (BOS) A Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:32 Operates only on 2026-09-06 The flight arrives 1 day after departure.
Mon-Fri,Sun 15:55 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) A Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:28 Effective 2026-09-07 through 2026-10-05 The flight arrives 1 day after departure.
Mon-Fri,Sun 15:55 Seattle-Tacoma (SEA) 00:20 Boston Logan (BOS) A Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:25 Effective from 2026-10-06 The flight arrives 1 day after departure.
Daily 10:26 Seattle-Tacoma (SEA) 18:59 Boston Logan (BOS) B Alaska Airlines AS 506 Non-stop Boeing 737 (73J) 5:33 Effective 2026-05-13 through 2026-06-09
Sat 22:23 Seattle-Tacoma (SEA) 07:42 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 MAX 9 (7M9) 5:19 Operates only on 2026-03-07 The flight arrives 1 day after departure.
Daily 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-02-12 through 2026-02-25 The flight arrives 1 day after departure.
Thu 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 (73J) 5:14 Operates only on 2026-02-26 The flight arrives 1 day after departure.
Daily 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-02-27 through 2026-03-06 The flight arrives 1 day after departure.
Mon-Wed,Sun 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-03-08 through 2026-03-11 The flight arrives 1 day after departure.
Thu,Sat,Sun 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 (73J) 5:14 Effective 2026-03-12 through 2026-03-15 The flight arrives 1 day after departure.
Mon,Tue 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-03-16 through 2026-03-17 The flight arrives 1 day after departure.
Fri 22:45 Seattle-Tacoma (SEA) 06:59 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Operates only on 2026-03-13 The flight arrives 1 day after departure.
Wed 22:50 Seattle-Tacoma (SEA) 07:16 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 (73J) 5:26 Operates only on 2026-03-18 The flight arrives 1 day after departure.
Daily 22:50 Seattle-Tacoma (SEA) 07:12 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 (73J) 5:22 Effective 2026-03-19 through 2026-05-12 The flight arrives 1 day after departure.
Daily 23:00 Seattle-Tacoma (SEA) 07:20 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 (73J) 5:20 Effective 2026-05-13 through 2026-06-09 The flight arrives 1 day after departure.
Daily 23:40 Seattle-Tacoma (SEA) 08:02 Boston Logan (BOS) B Alaska Airlines AS 536 Non-stop Boeing 737 (73J) 5:22 Effective from 2026-06-10 The flight arrives 1 day after departure.
Non-Direct Flights:
Tue 09:25 Seattle-Tacoma (SEA) 21:42 Boston Logan (BOS) B United Airlines UA 1372 1-stop Airbus A319 (319) 9:17 Operates only on 2026-01-06
Daily 09:25 Seattle-Tacoma (SEA) 21:42 Boston Logan (BOS) B United Airlines UA 1372 1-stop Boeing 737-800 (738) 9:17 Effective 2026-01-07 through 2026-02-03
Wed 09:25 Seattle-Tacoma (SEA) 22:19 Boston Logan (BOS) B United Airlines UA 1372 1-stop Boeing 737-900 (739) 9:54 Operates only on 2026-02-04
Mon,Tue,Thu-Sun 09:25 Seattle-Tacoma (SEA) 21:42 Boston Logan (BOS) B United Airlines UA 1372 1-stop Boeing 737-800 (738) 9:17 Effective 2026-02-05 through 2026-02-10
Wed 09:25 Seattle-Tacoma (SEA) 21:45 Boston Logan (BOS) B United Airlines UA 1372 1-stop Boeing 737-800 (738) 9:20 Operates only on 2026-02-11

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A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Boston Logan airport (BOS).
The flight distance is 2487 miles, or 4003 km.
The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . 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 5:14 and 5:53.

Return (BOS-SEA) flights

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

FLIGHT SCHEDULE

Direct Flights:

Alaska Airlines AS460

15:40

Seattle-Tacoma (SEA)

23:54

Boston Logan (BOS) B

Effective 2026-01-30 through 2026-02-10

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun

Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS460

15:40

Seattle-Tacoma (SEA)

23:54

Boston Logan (BOS) B

Operates only on 2026-02-05

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 5:14, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS460

15:40

Seattle-Tacoma (SEA)

23:54

Boston Logan (BOS) B

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS460

15:40

Seattle-Tacoma (SEA)

00:06(+1)

Boston Logan (BOS) B

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:26, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS460

15:42

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective 2026-02-12 through 2026-02-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Duration: 5:17, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS460

15:42

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective 2026-02-15 through 2026-02-22

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:17, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS460

15:42

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective 2026-02-19 through 2026-02-26

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 5:17, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS460

15:42

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective 2026-02-20 through 2026-03-03

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 5:17, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS460

15:42

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective 2026-03-01 through 2026-03-07

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 5:17, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS460

15:42

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

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

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 5:17, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS460

15:42

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective 2026-03-11 through 2026-03-17

Mon
-

Tue

Wed

Thu

Fri
-

Sat

Sun

Duration: 5:17, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS460

15:42

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Operates only on 2026-03-16

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 5:17, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS460

15:43

Seattle-Tacoma (SEA)

00:05(+1)

Boston Logan (BOS) B

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:22, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS460

15:59

Seattle-Tacoma (SEA)

00:23(+1)

Boston Logan (BOS) B

Valid until 2026-01-04

Mon

Tue

Wed

Thu
-

Fri

Sat
-

Sun

Duration: 5:24, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS460

15:59

Seattle-Tacoma (SEA)

00:23(+1)

Boston Logan (BOS) B

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat

Sun
-

Duration: 5:24, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS460

15:59

Seattle-Tacoma (SEA)

00:23(+1)

Boston Logan (BOS) B

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 5:24, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL473

22:00

Seattle-Tacoma (SEA)

06:35(+1)

Boston Logan (BOS) A

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:35, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL473

22:00

Seattle-Tacoma (SEA)

06:33(+1)

Boston Logan (BOS) A

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:33, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL473

22:20

Seattle-Tacoma (SEA)

06:50(+1)

Boston Logan (BOS) A

Effective 2026-02-12 through 2026-03-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:30, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL473

22:20

Seattle-Tacoma (SEA)

07:48(+1)

Boston Logan (BOS) A

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL473

22:25

Seattle-Tacoma (SEA)

06:50(+1)

Boston Logan (BOS) A

Effective 2026-01-05 through 2026-02-11

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL473

22:25

Seattle-Tacoma (SEA)

06:53(+1)

Boston Logan (BOS) A

Effective 2026-01-09 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL473

22:25

Seattle-Tacoma (SEA)

06:49(+1)

Boston Logan (BOS) A

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:24, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL473

22:25

Seattle-Tacoma (SEA)

06:50(+1)

Boston Logan (BOS) A

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL473

23:00

Seattle-Tacoma (SEA)

07:29(+1)

Boston Logan (BOS) A

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:29, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL474

15:43

Seattle-Tacoma (SEA)

23:58

Boston Logan (BOS) A

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 5:15, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL474

15:43

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) A

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 5:16, non-stop
Airbus A321neo (32Q)

Direct Flights:

Delta Air Lines DL474

15:55

Seattle-Tacoma (SEA)

00:23(+1)

Boston Logan (BOS) A

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL474

15:55

Seattle-Tacoma (SEA)

00:23(+1)

Boston Logan (BOS) A

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL474

15:55

Seattle-Tacoma (SEA)

00:27(+1)

Boston Logan (BOS) A

Operates only on 2026-09-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:32, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL474

15:55

Seattle-Tacoma (SEA)

00:23(+1)

Boston Logan (BOS) A

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL474

15:55

Seattle-Tacoma (SEA)

00:20(+1)

Boston Logan (BOS) A

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS506

10:26

Seattle-Tacoma (SEA)

18:59

Boston Logan (BOS) B

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:33, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS536

22:23

Seattle-Tacoma (SEA)

07:42(+1)

Boston Logan (BOS) B

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 5:19, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

22:40

Seattle-Tacoma (SEA)

06:54(+1)

Boston Logan (BOS) B

Effective 2026-02-12 through 2026-02-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

22:40

Seattle-Tacoma (SEA)

06:54(+1)

Boston Logan (BOS) B

Operates only on 2026-02-26

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 5:14, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

22:40

Seattle-Tacoma (SEA)

06:54(+1)

Boston Logan (BOS) B

Effective 2026-02-27 through 2026-03-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

22:40

Seattle-Tacoma (SEA)

06:54(+1)

Boston Logan (BOS) B

Effective 2026-03-08 through 2026-03-11

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

22:40

Seattle-Tacoma (SEA)

06:54(+1)

Boston Logan (BOS) B

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

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat

Sun

Duration: 5:14, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

22:40

Seattle-Tacoma (SEA)

06:54(+1)

Boston Logan (BOS) B

Effective 2026-03-16 through 2026-03-17

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

22:45

Seattle-Tacoma (SEA)

06:59(+1)

Boston Logan (BOS) B

Operates only on 2026-03-13

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

22:50

Seattle-Tacoma (SEA)

07:16(+1)

Boston Logan (BOS) B

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 5:26, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

22:50

Seattle-Tacoma (SEA)

07:12(+1)

Boston Logan (BOS) B

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:22, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

23:00

Seattle-Tacoma (SEA)

07:20(+1)

Boston Logan (BOS) B

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:20, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS536

23:40

Seattle-Tacoma (SEA)

08:02(+1)

Boston Logan (BOS) B

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:22, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Non-Direct Flights:

United Airlines UA1372

09:25

Seattle-Tacoma (SEA)

21:42

Boston Logan (BOS) B

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 9:17, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA1372

09:25

Seattle-Tacoma (SEA)

21:42

Boston Logan (BOS) B

Effective 2026-01-07 through 2026-02-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 9:17, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA1372

09:25

Seattle-Tacoma (SEA)

22:19

Boston Logan (BOS) B

Operates only on 2026-02-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 9:54, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA1372

09:25

Seattle-Tacoma (SEA)

21:42

Boston Logan (BOS) B

Effective 2026-02-05 through 2026-02-10

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 9:17, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA1372

09:25

Seattle-Tacoma (SEA)

21:45

Boston Logan (BOS) B

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 9:20, 1-stop
Boeing 737-800 (738)

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A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Boston Logan airport (BOS).
The flight distance is 2487 miles, or 4003 km.
The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . 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 5:14 and 5:53.

Return (BOS-SEA) flights

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