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 24 minutes.

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Choose airline

Schedules

United Airlines

Non-stop with United Airlines

  • Total flight time: 4 hours and 24 minutes
  • Houston is a United Airlines hub.
  • 32 flights per week
  • Boeing 737MAX 8 Passenger
    Boeing 737MAX 9 Passenger
    Boeing 737-800 Passenger
    Boeing 737-900 Passenger
    Airbus A320
  • Business and first class available
SEA
Direct
IAH
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
UA2748
05:00
05:00
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
11:55
11:55
11:55
11:55
11:55
11:55
11:55
UA1660
17:00
17:00
17:00
17:00
17:00
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17:00
UA2379
23:49
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23:49
23:49
23:49
23:52
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 25 minutes
  • One World Alliance
  • Seattle is a Alaska Airlines hub (Primary hub).
  • 21 flights per week
  • Boeing 737MAX 9 Passenger
    Boeing 737-900 (winglets) Passenger/BBJ3
    Boeing 737-800 (winglets) Passenger/BBJ2
  • Business and first class available
SEA
Direct
IAH
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
AS438
10:52
10:52
10:52
10:52
10:52
10:52
10:52
AS1573
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
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
AA1003
AA5017
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00:26
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AA2429
AA1916
00:59
00:59
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AA2748
AA2512
05:05
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AA2748
AA3584
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05:05
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AA2748
AA1397
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----
05:05
05:05
05:05
05:05
05:05
AA1667
AA3583
07:26
07:26
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----
----
----
----
AA1667
AA1393
----
----
07:40
07:40
07:40
07:40
07:40
AA707
AA1386
----
----
10:17
10:17
10:17
10:17
10:17
AA707
AA1094
----
10:22
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----
----
----
----
AA707
AA4923
10:22
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----
----
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AA767
AA1392
11:40
11:40
11:48
11:48
11:48
11:48
11:48
AA717
AA2209
13:53
13:53
14:06
14:06
14:06
14:06
14:06
AA757
AA1914
15:16
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AA757
AA3023
----
----
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15:47
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15:47
AA2003
AA5017
----
23:22
23:16
23:11
23:16
23:16
23:11
AA2003
AA3193
23:22
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----
----
----
----
----
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 737MAX 9 Passenger
    Boeing 737-800 Passenger
    Boeing 737-900 Passenger
    Airbus A320
SEA
 
Via DEN
 
IAH
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
UA2601
UA1129
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
08:57
UA757
UA489
11:02
11:02
11:02
11:02
11:02
11:02
11:02
UA1351
UA2791
12:50
12:50
12:50
12:50
12:50
12:50
12:50
UA333
UA475
14:33
14:33
14:33
14:33
14:33
----
14:34
UA667
UA2419
15:40
15:40
15:40
15:40
15:40
----
15:41
UA325
UA2419
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----
----
----
----
15:40
----
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
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
AA3792
AA640
06:20
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----
----
----
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AA4117
AA4132
----
----
10:59
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10:59
10:59
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AA3793
AA2357
----
11:07
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AA2524
AA3890
----
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----
15:10
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15:10
AA3440
AA2357
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
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
DL1128
DL1299
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05:25
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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

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Flight data on this page was last updated on 2026-07-21
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