Cheap Flights from Denver to Houston
Route details, airline options and booking tips for flying from Denver, Colorado to Houston, Texas.
Fares and availability are provided by participating airlines and subject to change.
Denver to Houston Route Overview
Flights from Denver to Houston typically depart from Denver International Airport (DEN) and arrive at George Bush Intercontinental Airport (IAH). United Airlines and Southwest Airlines both have a presence at both ends of this route, which is a good starting point when comparing nonstop options.
Whether this route runs nonstop depends on the specific airline and season — some carriers fly it directly while others route connections through a hub. Search current schedules above for exact options on your travel dates.
Route Snapshot
| Origin airport | Denver International Airport (DEN) |
|---|---|
| Destination airport | George Bush Intercontinental Airport (IAH) |
| Trip types | One-way and round-trip |
| Airlines to compare | United Airlines, Southwest Airlines, Frontier Airlines, Delta Air Lines |
Booking Tips for This Route
- Compare nonstop and one-stop options — a connection is sometimes meaningfully cheaper than a direct flight on the same city pair.
- Check COS as alternate departure points from the Denver area.
- Review fare rules before booking — basic economy fares are usually the cheapest but come with more restrictions.
FAQ: Denver to Houston Flights
Is there a nonstop flight from Denver to Houston?
Nonstop availability on the Denver to Houston route depends on the specific airline and season, so it's worth checking current schedules above rather than assuming either way.
What airport should I search for Houston?
Search IAH (George Bush Intercontinental Airport), and consider HOU as alternates depending on where in Houston you're headed.
Search Denver to Houston fares
Compare current options across the airlines that serve this route.