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

FLIGHT SCHEDULE
Non-Direct Flights:
Sun 06:15 Seattle-Tacoma (SEA) 19:00 Boston Logan (BOS) B Southwest Airlines WN 1740 2-stop Boeing 737-700 (Scimitar Winglets) 9:45 Effective 2026-03-08 through 2026-04-05
Fri,Sun 06:45 Seattle-Tacoma (SEA) 18:15 Boston Logan (BOS) B Southwest Airlines WN 2120 2-stop Boeing 737-700 (Scimitar Winglets) 8:30 Effective 2026-01-02 through 2026-01-04

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.

FLIGHT SCHEDULE

Non-Direct Flights:

Southwest Airlines WN1740

06:15

19:00

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 9:45, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN2120

06:45

18:15

Effective 2026-01-02 through 2026-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 8:30, 2-stop
Boeing 737-700 (Scimitar Winglets)

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.

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