Airlines with flights from Denver to Houston

There are three airlines with scheduled flights between DEN and IAH. Both United and Frontier operates non-stop flights from Denver International to Houston Airport and the flight time is 2 hours and 31 minutes.

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Schedules

United Airlines

Non-stop with United Airlines

  • Total flight time: 2 hours and 31 minutes
  • Denver and Houston are both United Airlines hubs.
  • 82 flights per week
  • Boeing 737-900 Passenger
    Airbus A321neo
    Boeing 757-300 Passenger
    Boeing 737-800 Passenger
  • Business and first class available
DEN
Direct
IAH
 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
UA320
05:00
05:00
05:00
05:00
05:00
05:00
05:00
UA1720
07:42
07:42
07:42
07:42
07:42
07:42
07:42
UA1129
10:07
10:07
10:07
10:07
10:07
10:07
10:07
UA1599
11:34
11:34
11:34
11:34
11:34
11:34
11:34
UA1829
13:30
13:30
13:30
13:30
13:30
13:30
13:30
UA489
15:35
15:35
15:35
15:35
15:35
15:35
15:35
UA588
16:20
16:20
16:20
16:20
16:20
16:20
16:20
UA1585
17:18
17:18
17:18
17:18
17:18
17:18
17:18
UA2791
18:05
18:05
18:05
18:05
18:05
18:05
18:05
UA475
19:35
19:35
19:35
19:35
19:35
19:35
19:35
UA2419
20:28
20:28
20:28
20:28
20:28
20:28
20:28
UA1253
21:10
----
21:10
21:10
21:10
----
21:10
SHOW RETURN SCHEDULE
CHECK PRICES FOR DEN - IAH

The timetable & schedule information was updated at 2026-04-21

Frontier Airlines

Non-stop with Frontier Airlines

  • Total flight time: 2 hours and 30 minutes
  • Low-cost airline
  • Denver is a Frontier Airlines focus city (Operating base).
  • 18 flights per week
  • Airbus A321neo
    Airbus A321
    Airbus A320neo
    Airbus A320
DEN
Direct
IAH
 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
F93206
07:00
07:00
07:00
07:00
07:00
07:00
07:00
F93228
17:35
----
----
17:35
17:35
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17:35
F92996
21:06
21:06
21:06
21:06
21:06
21:06
21:06
SHOW RETURN SCHEDULE
CHECK PRICES FOR DEN - IAH

The timetable & schedule information was updated at 2026-04-21

American Airlines

Via Dallas with American Airlines

  • Total flight time: 3h 48m - 6h 19m.
  • One World Alliance
  • 242 flights per week
DEN
 
Via DFW
 
IAH
 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
AA2612
AA1916
05:00
05:00
05:00
05:00
05:00
05:00
05:00
AA2078
AA2512
06:23
----
06:23
06:23
06:23
06:23
06:23
AA2078
AA3584
----
06:23
----
----
----
----
----
AA1090
AA2512
07:17
----
07:17
07:17
07:17
07:17
07:17
AA1090
AA3584
----
07:17
----
----
----
----
----
AA1523
AA3583
09:03
09:03
09:03
09:03
09:03
09:03
09:03
AA1756
AA3583
10:38
10:38
10:38
10:38
10:38
10:24
10:38
AA2359
AA4923
----
----
12:39
AA2359
AA3358
----
----
12:39
----
----
----
----
AA2359
AA1929
12:39
12:39
----
12:39
12:39
----
12:39
AA420
AA2209
15:11
15:11
15:11
15:11
15:11
15:11
15:11
AA1832
AA2209
16:23
----
----
16:23
16:23
----
16:23
AA1322
AA1914
18:10
----
----
18:10
18:10
18:10
18:10
SHOW RETURN SCHEDULE
CHECK PRICES FOR DEN - IAH

The timetable & schedule information was updated at 2026-04-21

United Airlines

Via Austin with United Airlines

  • Total flight time: 3h 49m - 6h 20m.
  • Denver and Houston are both United Airlines hubs.
  • 96 flights per week
  • Boeing 737-900 Passenger
    Airbus A321neo
    Boeing 757-300 Passenger
    Boeing 737-800 Passenger
DEN
 
Via AUS
 
IAH
 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
UA456
UA1747
08:00
08:00
08:00
08:00
08:00
08:00
08:00
UA1026
UA334
10:05
10:05
10:05
10:05
10:05
----
10:05
UA2270
UA1326
13:44
13:44
13:44
13:44
13:44
13:44
13:44
UA1899
UA1871
15:35
15:35
15:35
15:35
15:35
----
15:35
SHOW RETURN SCHEDULE
CHECK PRICES FOR DEN - IAH

The timetable & schedule information was updated at 2026-04-21

United Airlines

Via Dallas with United Airlines

  • Total flight time: 3h 58m - 6h 22m.
  • Denver and Houston are both United Airlines hubs.
  • 97 flights per week
  • Boeing 737-900 Passenger
    Airbus A321neo
    Boeing 757-300 Passenger
    Boeing 737-800 Passenger
DEN
 
Via DFW
 
IAH
 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
UA2160
UA539
07:32
07:32
07:32
07:32
07:32
----
07:32
UA355
UA3985
09:40
09:40
09:40
09:40
09:40
----
09:40
UA578
UA4007
----
----
----
----
----
----
13:45
UA578
UA1609
13:45
----
13:45
13:45
13:45
----
----
UA414
UA2114
15:42
----
15:42
15:42
15:42
----
15:42
SHOW RETURN SCHEDULE
CHECK PRICES FOR DEN - IAH

The timetable & schedule information was updated at 2026-04-21

United Airlines

Via Abilene with United Airlines

  • Total flight time: 4h 05m - 4h 25m.
  • Denver and Houston are both United Airlines hubs.
  • 7 flights per week
  • Boeing 737-900 Passenger
    Airbus A321neo
    Boeing 757-300 Passenger
    Boeing 737-800 Passenger
DEN
 
Via ABI
 
IAH
 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
SHOW RETURN SCHEDULE
CHECK PRICES FOR DEN - IAH

The timetable & schedule information was updated at 2026-04-21

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Flight data on this page was last updated on 2026-07-13
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