Cheap flights from Denver to Houston
862 mi · 45m average nonstop
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Quick answer: Denver to Houston at a glance
Cheap flights from Denver (DEN) to Houston (IAH) cover 862 miles (1,386 km) in about 45m nonstop, with 3 airlines flying direct — a medium-haul domestic route. Search Kayak for today's cheapest live fare. Route difficulty 3/10.
Summary computed from real OpenFlights coordinates — not an estimate. Prices update live on Kayak.
Flying from Denver to Houston covers 862 miles (1,387 km) in approximately 0 hour 45 minutes. 3 airlines offer direct flights on this medium-haul domestic route. This is a medium-haul domestic route typically served by direct flights.
Nonstop distance 862 miles. Direct carriers include F9, NK and UA.
We don't track historical prices for this route yet. Search live fares on Kayak for today's best price across 100+ airlines and booking sites.
Airlines on this route
3 airlines fly Denver → Houston. All are direct routes.
| Airline | Route type |
|---|---|
| F9 | Direct |
| NK | Direct |
| UA | Direct |
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Denver to Houston — quick answers
How far is Denver from Houston by plane?
The nonstop flight distance from Denver (DEN) to Houston (IAH) is 862 miles (1,386 km), calculated as a great-circle line from published OpenFlights airport coordinates. Actual flown distance is slightly longer due to airways and winds.
How long is the flight from Denver to Houston?
The average nonstop flight time from DEN to IAH is 45 minutes. Gate-to-gate time is usually 20–35 minutes longer; connecting itineraries add 1–4 hours depending on the layover.
Which airlines fly from Denver to Houston?
3 airlines serve this route nonstop: F9, NK, UA. Schedules and amenities differ by carrier — compare live frequencies and fare classes on Kayak before you book.