Southwest Airlines flights from Seattle-Tacoma (SEA) to Baltimore (BWI).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 21:25 Seattle-Tacoma (SEA) 05:20 Baltimore (BWI)
Southwest Airlines WN 540 Non-stop Boeing 737-800 (73H) 4:55 Effective 2026-06-09 through 2026-07-29
The flight arrives 1 day after departure.
Daily 22:30 Seattle-Tacoma (SEA) 06:30 Baltimore (BWI)
Southwest Airlines WN 3525 Non-stop Boeing 737-800 (73H) 5:00 Effective 2026-08-04 through 2026-09-30
The flight arrives 1 day after departure.
Mon,Thu-Sun 21:25 Seattle-Tacoma (SEA) 05:20 Baltimore (BWI)
Southwest Airlines WN 3613 Non-stop Boeing 737-800 (73H) 4:55 Effective 2026-06-04 through 2026-08-03
The flight arrives 1 day after departure.
Non-Direct Flights:
Fri,Sun 06:45 Seattle-Tacoma (SEA) 16:05 Baltimore (BWI)
Southwest Airlines WN 2120 1-stop Boeing 737-700 (Scimitar Winglets) 6:20 Effective 2026-01-02 through 2026-01-04
Mon,Thu,Fri 05:15 Seattle-Tacoma (SEA) 16:00 Baltimore (BWI)
Southwest Airlines WN 4010 1-stop Boeing 737 MAX 8 (7M8) 7:45 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 05:15 Seattle-Tacoma (SEA) 16:00 Baltimore (BWI)
Southwest Airlines WN 4010 1-stop Boeing 737 MAX 8 (7M8) 7:45 Effective 2026-02-20 through 2026-03-01
Sat 11:45 Seattle-Tacoma (SEA) 22:25 Baltimore (BWI)
Southwest Airlines WN 4052 1-stop Boeing 737-800 (73H) 7:40 Effective 2026-02-14 through 2026-02-28
Mon 07:10 Seattle-Tacoma (SEA) 21:35 Baltimore (BWI)
Southwest Airlines WN 1926 3-stop Boeing 737-700 (Scimitar Winglets) 11:25 Operates only on 2026-01-05
Mon,Thu,Fri 06:30 Seattle-Tacoma (SEA) 23:20 Baltimore (BWI)
Southwest Airlines WN 1821 4-stop Boeing 737-700 (Scimitar Winglets) 13:50 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 06:30 Seattle-Tacoma (SEA) 23:20 Baltimore (BWI)
Southwest Airlines WN 1821 4-stop Boeing 737-700 (Scimitar Winglets) 13:50 Effective 2026-02-20 through 2026-03-01


Southwest Airlines flights from Seattle-Tacoma (SEA) to Baltimore (BWI).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:55, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Effective 2026-08-04 through 2026-09-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:00, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 4:55, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Non-Direct Flights:

Effective 2026-01-02 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 6:20, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 7:45, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 7:45, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 7:40, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 11:25, 3-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 13:50, 4-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 13:50, 4-stop
Boeing 737-700 (Scimitar Winglets)
  • A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Baltimore airport (BWI).
  • The flight distance is 2327 miles, or 3746 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 4:55 and 5:00.