Need help booking?
Unpublished phone-only deals available
DEN to IAH: distance & flight time
Denver (Denver International Airport) → Houston (George Bush Intercontinental Houston Airport)
862 mi
1,387 km · 749 nm
2h 20m
estimated nonstop flight time
+1h
time difference · heading southeast
See live DEN→IAH fares Phone-only fares on this route — call free
Flight time details
862 miles nonstop takes roughly 2h 20m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- DEN — Denver International Airport · Denver, United States
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near DEN
- BFK · Buckley Air Force Base12 mi away
- APA · Centennial Airport22 mi away
- BJC · Rocky Mountain Metropolitan Airport24 mi away
- WBU · Boulder Municipal Airport32 mi away
Near IAH
- DWH · David Wayne Hooks Memorial Airport14 mi away
- IWS · West Houston Airport23 mi away
- AAP · Andrau Airpark23 mi away
- HOU · William P Hobby Airport24 mi away
Frequently asked questions
How far is DEN from IAH?
The flight distance from Denver (DEN) to Houston (IAH) is 862 miles (1,387 km, 749 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEN to IAH?
A nonstop flight takes about 2h 20m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Denver and Houston?
Houston is 1 hour ahead of Denver.
What is the cheapest way to fly from DEN to IAH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEN–IAH that never appear on search engines, with no booking fees.