Direct flights from Denver to Houston
90 nonstop flights a week on 2 airlines. Zero layovers — one hop from DEN to IAH.
Flight time: about 1h54m nonstop
Which days does it fly?
When does it fly?
Departure times in Denver local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| United UAL320 | 5:12a | 2h | Wed, Thu, Sun |
| United UAL320 | 5:20a | 1h54m | Fri–Sat |
| United UAL320 | 5:35a | 1h59m | Tue |
| United UAL320 | 5:52a | 1h57m | Mon |
| Frontier FFT3206 | 6:14a | 1h59m | Wed |
| Frontier FFT3206 | 6:19a | 1h54m | Mon, Thu, Fri, Sat |
| Frontier FFT3206 | 6:29a | 1h54m | Tue |
| Frontier FFT3206 | 6:54a | 2h9m | Sun |
| United UAL1720 | 7:49a | 1h53m | Mon, Tue, Wed, Thu, Sat |
| United UAL1720 | 7:58a | 1h54m | Fri |
| United UAL1720 | 8:14a | 1h52m | Sun |
| United UAL1667 | 10:17a | 1h52m | Mon–Tue |
| United UAL1667 | 10:30a | 1h55m | Wed–Sun |
| United UAL3925 | 11:26a | 2h2m | Sat |
| United UAL1599 | 11:53a | 1h53m | Wed |
| United UAL1599 | 12:02p | 1h52m | Thu, Sun |
| United UAL1599 | 12:12p | 1h52m | Fri–Sat |
| United UAL1599 | 12:17p | 1h53m | Tue |
| United UAL1599 | 12:36p | 1h53m | Mon |
| United UAL1829 | 1:49p | 1h56m | Tue |
| United UAL1829 | 1:57p | 1h56m | Wed–Fri |
| United UAL1829 | 2:07p | 1h56m | Mon |
| United UAL1829 | 2:25p | 1h55m | Sat |
| United UAL1829 | 2:44p | 1h54m | Sun |
| United UAL489 | 3:52p | 1h54m | Mon, Wed, Thu, Sat |
| United UAL489 | 3:59p | 1h53m | Tue, Fri |
| United UAL588 | 4:38p | 1h54m | Wed |
| United UAL489 | 4:47p | 1h52m | Sun |
| United UAL588 | 4:49p | 1h52m | Sun |
| United UAL588 | 4:55p | 1h53m | Thu |
| United UAL1587 | 5:42p | 1h52m | Wed, Sun |
| United UAL1587 | 5:52p | 2h7m | Tue |
| United UAL1587 | 5:58p | 1h51m | Mon |
| United UAL1587 | 6:11p | 1h53m | Thu |
| Frontier FFT3228 | 6:26p | 1h57m | Thu |
| United UAL1206 | 6:29p | 1h54m | Thu, Sat |
| United UAL1587 | 6:32p | 1h54m | Fri |
| Frontier FFT3228 | 6:35p | 1h55m | Mon, Sat, Sun |
| United UAL1206 | 6:37p | 2h9m | Tue, Sun |
| United UAL1206 | 6:46p | 1h52m | Mon |
| Frontier FFT3228 | 7:07p | 1h54m | Fri |
| United UAL1206 | 7:19p | 1h52m | Fri |
| United UAL475 | 7:54p | 1h51m | Sat |
| United UAL475 | 7:59p | 1h53m | Mon, Tue, Fri |
| United UAL475 | 8:08p | 1h52m | Sun |
| United UAL475 | 8:37p | 1h53m | Wed |
| United UAL2419 | 8:44p | 1h57m | Tue |
| United UAL2419 | 8:51p | 1h59m | Mon, Sat, Sun |
| United UAL2419 | 8:58p | 1h52m | Wed–Thu |
| United UAL475 | 9:28p | 1h52m | Thu |
| Frontier FFT2996 | 9:33p | 1h53m | Sun |
| Frontier FFT2996 | 9:39p | 1h55m | Mon–Thu |
| Frontier FFT2996 | 9:48p | 1h55m | Fri |
| United UAL2419 | 9:59p | 1h57m | Fri |
UnitedThe route
One hop: DEN → IAHDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Denver (DEN) to Houston (IAH)
Denver International Airport (DEN) has 90 nonstop flights a week to Houston (IAH), operated by Frontier and United. No layovers, no connections — one hop out of DEN and you're there.
This route flies every day of the week, so any travel day works. Route data updated September 2026 from observed departures.
Route data updated September 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Denver to Houston?
The nonstop flight from Denver (DEN) to Houston (IAH) takes about 1h54m in the air, based on recently observed nonstop departures.