Airlines with flights from Seattle to Houston

There are five airlines with scheduled flights between SEA and IAH. Both United and Alaska Airlines operates non-stop flights from Seattle Airport to Houston Airport and the flight time is 4 hours and 26 minutes.

Change direction

Choose airline

Schedules

United Airlines

Non-stop with United Airlines

  • Total flight time: 4 hours and 26 minutes
  • Houston is a United Airlines hub.
  • 30 flights per week
  • Boeing 737MAX 8 Passenger
    Boeing 737-800 Passenger
    Boeing 737-900 Passenger
    Airbus A320
    Boeing 737MAX 9 Passenger
  • Business and first class available
SEA
Direct
IAH
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA2748
05:00
----
05:00
05:00
05:00
05:00
----
UA2135
07:05
07:00
07:05
07:05
07:05
07:05
07:05
UA2293
12:04
12:04
12:04
12:04
12:04
12:04
12:04
UA1660
17:00
17:00
17:00
17:00
17:00
----
17:00
UA2379
23:49
----
----
23:57
23:57
23:49
23:57
SHOW RETURN SCHEDULE
CHECK PRICES FOR SEA - IAH

The timetable & schedule information was updated at 2026-04-22

Alaska Airlines

Non-stop with Alaska Airlines

  • Total flight time: 4 hours and 26 minutes
  • One World Alliance
  • Seattle is a Alaska Airlines hub (Primary hub).
  • 20 flights per week
  • Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737MAX 9 Passenger
    Boeing 737-900 (winglets) Passenger/BBJ3
  • Business and first class available
SEA
Direct
IAH
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
AS438
10:52
10:52
10:52
10:52
10:52
10:52
10:52
AS1579
17:33
17:33
17:33
17:33
17:33
17:33
17:33
AS398
23:57
23:57
23:57
23:57
23:57
23:57
23:57
SHOW RETURN SCHEDULE
CHECK PRICES FOR SEA - IAH

The timetable & schedule information was updated at 2026-04-22

American Airlines

Via Dallas with American Airlines

  • Total flight time: 5h 40m - 8h 25m.
  • One World Alliance
  • 372 flights per week
SEA
 
Via DFW
 
IAH
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
AA2429
AA1916
----
----
00:49
----
AA2429
AA3193
00:49
00:49
----
----
00:49
----
----
AA2748
AA2512
05:10
----
05:10
05:10
05:10
05:10
05:10
AA2748
AA3533
----
05:10
----
----
----
----
----
AA1667
AA3583
07:31
07:31
07:31
07:31
07:31
07:31
07:31
AA707
AA4923
10:23
----
----
10:23
10:23
10:23
10:23
AA707
AA1094
----
10:23
10:23
----
----
----
----
AA767
AA1392
11:43
11:43
11:43
11:43
11:43
11:43
11:43
AA717
AA2209
14:03
14:03
14:03
14:03
14:03
14:03
14:03
AA757
AA1914
15:45
----
----
15:45
15:45
15:45
15:45
AA2003
AA3193
23:24
23:24
23:24
23:24
----
23:24
23:24
SHOW RETURN SCHEDULE
CHECK PRICES FOR SEA - IAH

The timetable & schedule information was updated at 2026-04-22

United Airlines

Via Denver with United Airlines

  • Total flight time: 5h 49m - 10h 53m.
  • Houston is a United Airlines hub.
  • 157 flights per week
  • Boeing 737MAX 8 Passenger
    Boeing 737-800 Passenger
    Boeing 737-900 Passenger
    Airbus A320
    Boeing 737MAX 9 Passenger
SEA
 
Via DEN
 
IAH
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA2601
UA2841
05:00
05:00
05:00
05:00
05:00
05:00
05:00
UA1505
UA1829
08:56
08:56
08:58
08:56
08:56
08:56
08:56
UA1715
UA489
11:02
11:02
11:02
11:02
11:02
11:02
11:02
UA1351
UA2018
12:50
12:50
12:50
12:50
12:50
12:50
12:50
UA655
UA475
14:36
14:36
14:36
14:36
14:36
----
14:36
UA757
UA2419
15:40
15:40
15:40
15:40
15:40
15:40
15:41
SHOW RETURN SCHEDULE
CHECK PRICES FOR SEA - IAH

The timetable & schedule information was updated at 2026-04-22

American Airlines

Via Phoenix with American Airlines

  • Total flight time: 5h 55m - 8h 43m.
  • One World Alliance
  • 74 flights per week
SEA
 
Via PHX
 
IAH
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
AA3792
AA640
06:20
----
----
06:20
06:20
----
06:20
AA3793
AA2357
----
11:03
11:03
----
----
11:03
----
AA3440
AA2357
15:20
----
----
15:20
15:20
----
15:20
SHOW RETURN SCHEDULE
CHECK PRICES FOR SEA - IAH

The timetable & schedule information was updated at 2026-04-22

Delta Air Lines

Via Salt Lake City with Delta Air Lines

  • Total flight time: 6h 02m - 7h 44m.
  • Sky Team Alliance
  • Seattle is a Delta Air Lines hub.
  • 62 flights per week
SEA
 
Via SLC
 
IAH
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
DL1128
DL1299
----
----
----
----
----
05:30
----
DL1016
DL1299
09:26
09:26
09:26
09:26
09:26
----
09:26
DL1120
DL2514
13:30
13:30
13:30
13:30
13:30
13:30
13:30
SHOW RETURN SCHEDULE
CHECK PRICES FOR SEA - IAH

The timetable & schedule information was updated at 2026-04-22

Change direction

Staying up-to-date with the airlines

At Airlineinformation.com you can learn all about the airlines operating around the world together with their destinations and where they operate. You will get a transparent overview of airlines with scheduled flights between any two destinations with non-stop or 1-stop flights regardless of price or availability.
Flight data on this page was last updated on 2026-06-02
© 2026 Westcoast Digital