Southwest Airlines flights from Houston Hobby (HOU) to Seattle-Tacoma (SEA).

FLIGHT SCHEDULE
Direct Flights:
Sun 10:30 Houston Hobby (HOU) 13:05 Seattle-Tacoma (SEA) Southwest Airlines WN 599 Non-stop Boeing 737-800 (73H) 4:35 Operates only on 2025-08-31
Sun 12:35 Houston Hobby (HOU) 15:10 Seattle-Tacoma (SEA) Southwest Airlines WN 986 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Effective 2025-06-08 through 2025-08-03
Tue,Wed 13:35 Houston Hobby (HOU) 16:10 Seattle-Tacoma (SEA) Southwest Airlines WN 986 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Effective 2025-06-10 through 2025-07-30
Sat 18:00 Houston Hobby (HOU) 20:40 Seattle-Tacoma (SEA) Southwest Airlines WN 986 Non-stop Boeing 737 MAX 8 (7M8) 4:40 Effective 2025-06-07 through 2025-08-02
Mon,Thu,Fri 13:40 Houston Hobby (HOU) 16:20 Seattle-Tacoma (SEA) Southwest Airlines WN 1465 Non-stop Boeing 737 MAX 8 (7M8) 4:40 Effective 2025-06-20 through 2025-07-03
Mon,Thu,Fri 13:45 Houston Hobby (HOU) 16:25 Seattle-Tacoma (SEA) Southwest Airlines WN 1465 Non-stop Boeing 737-700 (73W) 4:40 Effective 2025-06-05 through 2025-06-19
Mon,Thu,Fri 13:45 Houston Hobby (HOU) 16:25 Seattle-Tacoma (SEA) Southwest Airlines WN 1465 Non-stop Boeing 737-700 (73W) 4:40 Effective 2025-07-07 through 2025-08-04
Tue,Wed 10:20 Houston Hobby (HOU) 12:55 Seattle-Tacoma (SEA) Southwest Airlines WN 2592 Non-stop Boeing 737-800 (73H) 4:35 Effective 2025-08-05 through 2025-10-01
Sun 18:50 Houston Hobby (HOU) 21:30 Seattle-Tacoma (SEA) Southwest Airlines WN 2592 Non-stop Boeing 737-700 (73W) 4:40 Effective 2025-08-10 through 2025-08-24
Sun 18:50 Houston Hobby (HOU) 21:30 Seattle-Tacoma (SEA) Southwest Airlines WN 2592 Non-stop Boeing 737-700 (73W) 4:40 Effective 2025-09-07 through 2025-09-28
Sat 20:45 Houston Hobby (HOU) 23:25 Seattle-Tacoma (SEA) Southwest Airlines WN 2592 Non-stop Boeing 737-800 (73H) 4:40 Effective 2025-08-09 through 2025-09-27
Fri 18:40 Houston Hobby (HOU) 21:20 Seattle-Tacoma (SEA) Southwest Airlines WN 2964 Non-stop Boeing 737-800 (73H) 4:40 Operates only on 2025-07-04
Mon,Thu,Fri 12:15 Houston Hobby (HOU) 14:50 Seattle-Tacoma (SEA) Southwest Airlines WN 3017 Non-stop Boeing 737-700 (73W) 4:35 Effective 2025-08-07 through 2025-09-29
Non-Direct Flights:
Sat 16:25 Houston Hobby (HOU) 21:25 Seattle-Tacoma (SEA) Southwest Airlines WN 368 1-stop Boeing 737-700 (73W) 7:00 Valid until 2025-05-31
Mon,Thu,Fri 15:10 Houston Hobby (HOU) 19:55 Seattle-Tacoma (SEA) Southwest Airlines WN 383 1-stop Boeing 737 MAX 8 (7M8) 6:45 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 15:10 Houston Hobby (HOU) 19:55 Seattle-Tacoma (SEA) Southwest Airlines WN 383 1-stop Boeing 737 MAX 8 (7M8) 6:45 Effective 2025-07-07 through 2025-08-04
Mon,Thu,Fri 16:10 Houston Hobby (HOU) 21:45 Seattle-Tacoma (SEA) Southwest Airlines WN 1314 1-stop Boeing 737-800 (73H) 7:35 Effective 2025-08-07 through 2025-09-29
Thu 07:50 Houston Hobby (HOU) 12:55 Seattle-Tacoma (SEA) Southwest Airlines WN 1749 1-stop Boeing 737-700 (Scimitar Winglets) 7:05 Operates only on 2025-11-27
Sun 06:15 Houston Hobby (HOU) 12:25 Seattle-Tacoma (SEA) Southwest Airlines WN 222 2-stop Boeing 737 MAX 8 (7M8) 8:10 Effective 2025-08-10 through 2025-08-24
Sun 06:15 Houston Hobby (HOU) 12:25 Seattle-Tacoma (SEA) Southwest Airlines WN 222 2-stop Boeing 737 MAX 8 (7M8) 8:10 Effective 2025-09-07 through 2025-09-28
Sat 08:30 Houston Hobby (HOU) 14:25 Seattle-Tacoma (SEA) Southwest Airlines WN 2918 2-stop Boeing 737-700 (Scimitar Winglets) 7:55 Effective 2025-11-22 through 2025-11-29
Sat 08:30 Houston Hobby (HOU) 14:25 Seattle-Tacoma (SEA) Southwest Airlines WN 2918 2-stop Boeing 737-700 (Scimitar Winglets) 7:55 Effective 2025-12-20 through 2026-01-03
Tue,Wed 08:50 Houston Hobby (HOU) 16:05 Seattle-Tacoma (SEA) Southwest Airlines WN 185 3-stop Boeing 737-700 (Scimitar Winglets) 9:15 Effective 2025-10-07 through 2025-10-29

A domestic route departing from the Houston Hobby airport (HOU) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1891 miles, or 3044 km.
The timezone of the departure airport is UTC-6 , 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 4:35 and 4:40.

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN599

10:30

Houston Hobby (HOU)

13:05

Seattle-Tacoma (SEA)

Operates only on 2025-08-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:35, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN986

12:35

Houston Hobby (HOU)

15:10

Seattle-Tacoma (SEA)

Effective 2025-06-08 through 2025-08-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN986

13:35

Houston Hobby (HOU)

16:10

Seattle-Tacoma (SEA)

Effective 2025-06-10 through 2025-07-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN986

18:00

Houston Hobby (HOU)

20:40

Seattle-Tacoma (SEA)

Effective 2025-06-07 through 2025-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:40, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN1465

13:40

Houston Hobby (HOU)

16:20

Seattle-Tacoma (SEA)

Effective 2025-06-20 through 2025-07-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:40, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN1465

13:45

Houston Hobby (HOU)

16:25

Seattle-Tacoma (SEA)

Effective 2025-06-05 through 2025-06-19

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN1465

13:45

Houston Hobby (HOU)

16:25

Seattle-Tacoma (SEA)

Effective 2025-07-07 through 2025-08-04

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN2592

10:20

Houston Hobby (HOU)

12:55

Seattle-Tacoma (SEA)

Effective 2025-08-05 through 2025-10-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:35, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN2592

18:50

Houston Hobby (HOU)

21:30

Seattle-Tacoma (SEA)

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN2592

18:50

Houston Hobby (HOU)

21:30

Seattle-Tacoma (SEA)

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN2592

20:45

Houston Hobby (HOU)

23:25

Seattle-Tacoma (SEA)

Effective 2025-08-09 through 2025-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:40, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN2964

18:40

Houston Hobby (HOU)

21:20

Seattle-Tacoma (SEA)

Operates only on 2025-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 4:40, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3017

12:15

Houston Hobby (HOU)

14:50

Seattle-Tacoma (SEA)

Effective 2025-08-07 through 2025-09-29

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:35, non-stop
Boeing 737-700 (73W)

Non-Direct Flights:

Southwest Airlines WN368

16:25

Houston Hobby (HOU)

21:25

Seattle-Tacoma (SEA)

Valid until 2025-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 7:00, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN383

15:10

Houston Hobby (HOU)

19:55

Seattle-Tacoma (SEA)

Effective 2025-06-05 through 2025-07-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 6:45, 1-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN383

15:10

Houston Hobby (HOU)

19:55

Seattle-Tacoma (SEA)

Effective 2025-07-07 through 2025-08-04

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 6:45, 1-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN1314

16:10

Houston Hobby (HOU)

21:45

Seattle-Tacoma (SEA)

Effective 2025-08-07 through 2025-09-29

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 7:35, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN1749

07:50

Houston Hobby (HOU)

12:55

Seattle-Tacoma (SEA)

Operates only on 2025-11-27

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 7:05, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN222

06:15

Houston Hobby (HOU)

12:25

Seattle-Tacoma (SEA)

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 8:10, 2-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN222

06:15

Houston Hobby (HOU)

12:25

Seattle-Tacoma (SEA)

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 8:10, 2-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN2918

08:30

Houston Hobby (HOU)

14:25

Seattle-Tacoma (SEA)

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 7:55, 2-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN2918

08:30

Houston Hobby (HOU)

14:25

Seattle-Tacoma (SEA)

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 7:55, 2-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN185

08:50

Houston Hobby (HOU)

16:05

Seattle-Tacoma (SEA)

Effective 2025-10-07 through 2025-10-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 9:15, 3-stop
Boeing 737-700 (Scimitar Winglets)

A domestic route departing from the Houston Hobby airport (HOU) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1891 miles, or 3044 km.
The timezone of the departure airport is UTC-6 , 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 4:35 and 4:40.

All HOU-SEA flights

All Southwest Airlines flights

Return (SEA-HOU) flights

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