Airlines with flights from Houston to Denver

There are three airlines with scheduled flights between IAH and DEN. Both United and Frontier operates non-stop flights from Houston Airport to Denver International and the flight time is 2 hours and 36 minutes.

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Schedules

United Airlines

Non-stop with United Airlines

  • Total flight time: 2 hours and 36 minutes
  • Houston and Denver are both United Airlines hubs.
  • 82 flights per week
  • Airbus A321neo
    Boeing 737-900 Passenger
    Boeing 757-300 Passenger
  • Business and first class available
IAH
Direct
DEN
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA1874
05:15
05:15
05:15
05:15
05:15
05:15
05:15
UA2643
06:30
06:30
06:30
06:30
06:30
06:30
06:30
UA1575
07:20
07:20
07:20
07:20
07:20
07:20
07:20
UA2802
08:30
08:30
08:30
08:30
08:30
08:30
08:30
UA1634
09:36
09:36
09:36
09:36
09:36
09:36
09:36
UA1409
10:31
10:31
10:31
10:31
10:31
10:31
10:31
UA2168
12:33
12:33
12:33
12:33
12:33
12:33
12:33
UA1246
15:00
15:00
15:00
15:00
15:00
15:00
15:00
UA470
16:21
16:21
16:21
16:21
16:21
16:21
16:21
UA1654
18:19
18:19
18:19
18:19
18:19
18:19
18:19
UA2339
20:22
20:22
20:22
20:22
20:22
20:22
20:22
UA1066
22:10
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22:10
22:10
22:10
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22:10
SHOW RETURN SCHEDULE
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The timetable & schedule information was updated at 2026-04-21

Frontier Airlines

Non-stop with Frontier Airlines

  • Total flight time: 2 hours and 44 minutes
  • Low-cost airline
  • Denver is a Frontier Airlines focus city (Operating base).
  • 28 flights per week
  • Airbus A320neo
    Airbus A321neo
IAH
Direct
DEN
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
F93229
06:30
06:30
06:30
06:30
06:30
06:30
06:30
F93227
18:14
18:14
18:14
18:14
18:14
18:14
18:14
F93205
22:08
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22:08
22:08
----
22:08
SHOW RETURN SCHEDULE
CHECK PRICES FOR IAH - DEN

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

United Airlines

Via Dallas with United Airlines

  • Total flight time: 3h 59m - 6h 33m.
  • Houston and Denver are both United Airlines hubs.
  • 127 flights per week
  • Airbus A321neo
    Boeing 737-900 Passenger
    Boeing 757-300 Passenger
IAH
 
Via DFW
 
DEN
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA358
UA2049
07:23
07:23
07:23
07:23
07:23
07:23
07:20
UA2074
UA2049
09:31
09:31
09:31
09:31
09:31
----
09:31
UA4023
UA1303
----
----
----
----
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14:42
14:42
UA1388
UA1303
14:42
14:42
14:42
14:42
14:42
----
----
UA1439
UA1602
16:20
16:20
16:20
16:20
16:20
----
16:20
SHOW RETURN SCHEDULE
CHECK PRICES FOR IAH - DEN

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

American Airlines

Via Dallas with American Airlines

  • Total flight time: 4h 08m - 6h 38m.
  • One World Alliance
  • 236 flights per week
IAH
 
Via DFW
 
DEN
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
AA2551
AA1523
05:00
05:00
05:00
05:00
05:00
05:00
05:00
AA700
AA1756
06:02
06:02
06:02
06:02
06:02
06:02
06:02
AA3002
AA2359
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07:00
07:00
07:00
----
07:00
07:00
AA3002
AA943
07:00
----
----
----
07:00
----
----
AA3193
AA420
09:28
09:28
09:28
09:28
09:28
----
09:28
AA1916
AA420
10:37
10:37
10:37
10:37
10:37
10:37
10:37
AA3591
AA1832
11:24
11:19
11:24
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----
----
11:24
AA2512
AA1322
14:04
----
14:04
14:04
14:04
14:04
14:04
AA3533
AA1322
----
14:04
----
----
----
----
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AA3583
AA2235
16:16
16:16
16:16
16:16
16:16
16:16
16:16
AA1929
AA662
18:50
18:50
----
18:50
18:50
----
19:00
AA3555
AA662
----
----
18:50
----
----
----
----
AA4923
AA662
19:42
----
----
19:42
19:42
19:42
19:42
SHOW RETURN SCHEDULE
CHECK PRICES FOR IAH - DEN

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

United Airlines

Via Oklahoma City with United Airlines

  • Total flight time: 4h 08m - 4h 57m.
  • Houston and Denver are both United Airlines hubs.
  • 8 flights per week
  • Airbus A321neo
    Boeing 737-900 Passenger
    Boeing 757-300 Passenger
IAH
 
Via OKC
 
DEN
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA4834
UA333
----
----
----
----
----
14:35
----
UA6189
UA333
14:35
14:35
14:35
14:35
14:35
----
14:35
SHOW RETURN SCHEDULE
CHECK PRICES FOR IAH - DEN

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

United Airlines

Via Austin with United Airlines

  • Total flight time: 4h 10m - 6h 40m.
  • Houston and Denver are both United Airlines hubs.
  • 110 flights per week
  • Airbus A321neo
    Boeing 737-900 Passenger
    Boeing 757-300 Passenger
IAH
 
Via AUS
 
DEN
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA2070
UA779
07:35
07:35
07:35
07:35
07:35
07:35
07:30
UA1823
UA1541
10:15
10:15
10:15
10:15
10:15
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10:15
UA1859
UA2447
12:14
12:05
12:05
12:05
12:05
12:17
12:05
UA6118
UA439
14:20
14:20
14:20
14:20
14:20
----
14:20
UA1711
UA439
16:20
16:20
16:20
16:20
16:20
----
16:20
SHOW RETURN SCHEDULE
CHECK PRICES FOR IAH - DEN

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

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Flight data on this page was last updated on 2026-06-02
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