United Airlines
Star Alliance
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United States
Denver International Airport
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United States
George Bush Intercontinental Airport
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Scan through all non-stop flights from Denver to Houston. The full flight schedule below gives an overview of all non-stop flights from DEN to IAH, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Houston is a humid subtropical or warm-temperate destination, featuring hot, humid summers with temperatures typically around 30°C (86°F) and mild to cool winters. The region is known for consistent rainfall throughout the year, peaking in summer. The area is known for its vibrant urban energy, diverse landscapes, and numerous outdoor activities.
You can visit Houston any time of the year, but the best months to explore are from to and from to .
In total there are 2 airlines operating nonstop flights from Denver DEN to Houston IAH. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their DEN IAH flight schedule.
Flights from DEN to IAH are operated 7 times a week, with an average of 1 flight per day. Departure times vary between 05:00 - 21:10. The earliest flight departs at 05:00, the last flight departs at 21:10. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Denver to Houston takes 2 hours and 33 minutes. The flight distance between Denver and Houston is 861 miles (or 1,386 km).
There are 2 airports in Houston: George Bush Intercontinental Airport (IAH) and William P. Hobby Airport (HOU).
There are 7 flights per week flying from Denver to Houston (as of March 2026).
2 hours and 33 minutes is the average flight time from Denver to Houston.
The distance from Denver to Houston is 861 miles (1,386 kilometers).
Frontier Airlines and United Airlines are flying nonstop from Denver to Houston.
Star Alliance is currently the only alliance flying nonstop from Denver to Houston.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Denver to Houston:
The earliest flight departs at 05:00 from Denver and arrives at 08:35 at Houston.
The latest flight departs at 21:10 from Denver and arrives at 00:41 at Houston.
861 miles (1,386 km) · 2h 33m
05:00
08:35
United Airlines
Star Alliance
UA 320
United Airlines
Boeing 737-900
Y
W
J
F
07:45
11:13
United Airlines
Star Alliance
UA 1720
United Airlines
Boeing 777
Y
W
J
F
07:45
11:13
United Airlines
Star Alliance
UA 1720
United Airlines
Boeing 777
Y
W
J
F
09:50
13:28
United Airlines
Star Alliance
UA 1915
United Airlines
Airbus A321neo
Y
W
J
F
11:42
15:20
United Airlines
Star Alliance
UA 1599
United Airlines
Airbus A321neo
Y
W
J
F
11:42
15:20
United Airlines
Star Alliance
UA 1599
United Airlines
Airbus A321neo
Y
W
J
F
13:25
17:02
United Airlines
Star Alliance
UA 1829
United Airlines
Boeing 757-300
Y
W
J
F
13:25
17:02
United Airlines
Star Alliance
UA 1829
United Airlines
Boeing 757-300
Y
W
J
F
15:35
19:10
United Airlines
Star Alliance
UA 489
United Airlines
Airbus A321neo
Y
W
J
F
16:34
20:12
United Airlines
Star Alliance
UA 588
United Airlines
Boeing 737-900
Y
W
J
F
17:25
21:03
United Airlines
Star Alliance
UA 1587
United Airlines
Airbus A321neo
Y
W
J
F
18:25
22:01
Frontier Airlines
F9 4856
Frontier Airlines
Airbus A321-100/200
Y
W
J
F
19:38
23:14
United Airlines
Star Alliance
UA 475
United Airlines
Airbus A321neo
Y
W
J
F
20:23
23:59
United Airlines
Star Alliance
UA 2419
United Airlines
Boeing 737 MAX 9
Y
W
J
F
21:06
00:39
Frontier Airlines
F9 2996
Frontier Airlines
Airbus A321neo
Y
W
J
F
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