S$129 Cheap Flights from Denver to Houston

View S$129 flight on Sat, 17 Jan, 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH)

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Cheap Flights from Denver to Houston (DEN-IAH)

Prices were available within the past 7 days and start at S$129 for one-way flights and S$257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 17 Jan - Sun, 18 Jan
DEN
Denver
IAH
Houston
S$257 Return, found 3 days ago
S$257
Return
found 3 days ago
Select Delta flight, departing Sat, 17 Jan from Denver to Houston, returning Sun, 18 Jan, priced at S$257 found 3 days ago
Delta
Sat, 17 Jan - Sun, 18 Jan
DEN
Denver
IAH
Houston
S$271 Return, found 3 days ago
S$271
Return
found 3 days ago
Select Delta flight, departing Sat, 17 Jan from Denver to Houston, returning Sun, 18 Jan, priced at S$271 found 3 days ago
Delta
Sat, 17 Jan - Sun, 18 Jan
DEN
Denver
IAH
Houston
S$289 Return, found 3 days ago
S$289
Return
found 3 days ago
Select Delta flight, departing Sat, 17 Jan from Denver to Houston, returning Sun, 18 Jan, priced at S$289 found 3 days ago
Delta
Sat, 17 Jan - Sun, 18 Jan
DEN
Denver
IAH
Houston
S$303 Return, found 3 days ago
S$303
Return
found 3 days ago
Select Delta flight, departing Sat, 17 Jan from Denver to Houston, returning Sun, 18 Jan, priced at S$303 found 3 days ago
United
Sat, 17 Jan - Sun, 18 Jan
DEN
Denver
IAH
Houston
S$308 Return, found 3 days ago
S$308
Return
found 3 days ago
Select United flight, departing Sat, 17 Jan from Denver to Houston, returning Sun, 18 Jan, priced at S$308 found 3 days ago
Delta
Sun, 14 Dec - Tue, 16 Dec
DEN
Denver
IAH
Houston
S$310 Return, found 3 days ago
S$310
Return
found 3 days ago
Select Delta flight, departing Sun, 14 Dec from Denver to Houston, returning Tue, 16 Dec, priced at S$310 found 3 days ago
Delta
Sat, 17 Jan - Sun, 18 Jan
DEN
Denver
IAH
Houston
S$311 Return, found 3 days ago
S$311
Return
found 3 days ago
Select Delta flight, departing Sat, 17 Jan from Denver to Houston, returning Sun, 18 Jan, priced at S$311 found 3 days ago
Delta
Sat, 17 Jan - Sun, 18 Jan
DEN
Denver
IAH
Houston
S$324 Return, found 3 days ago
S$324
Return
found 3 days ago
Select Delta flight, departing Sat, 17 Jan from Denver to Houston, returning Sun, 18 Jan, priced at S$324 found 3 days ago
American Airlines
Sat, 17 Jan - Sun, 18 Jan
DEN
Denver
IAH
Houston
S$329 Return, found 3 days ago
S$329
Return
found 3 days ago
Select American Airlines flight, departing Sat, 17 Jan from Denver to Houston, returning Sun, 18 Jan, priced at S$329 found 3 days ago
United
Sat, 17 Jan - Sun, 18 Jan
DEN
Denver
IAH
Houston
S$334 Return, found 3 days ago
S$334
Return
found 3 days ago
Select United flight, departing Sat, 17 Jan from Denver to Houston, returning Sun, 18 Jan, priced at S$334 found 3 days ago

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Find the cheapest month to fly from Denver (DEN) to Houston (IAH)

January is typically the cheapest month to fly

From S$73 - S$186 per traveller.
Denver to Houston route information
Origin airport
Denver Intl.
Destination airport
George Bush Intercontinental
Return price
S$257
Distance
1378 km
Average flight time
3 hours 26 mins

Flights from Denver to Houston

There are several airlines that operate frequent flights from Denver (DEN) to Houston (IAH) including

The earliest flight leaves Denver Intl. Airport at 05:00 and arrives at George Bush Intercontinental Airport at 01:15. The last flight of the day departs Denver at 22:30 and arrives at Houston at 23:55.

The flight distance from Denver to Houston is about 1393 km, the shortest flight is 02 hours 15 minutes with United Airlines."

Expedia lets you search across the largest number of airlines and Houston flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Denver Houston flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Denver to Houston trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Houston flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Denver to Houston with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from DIA airport to IAH?
The lowest price advertised for a round-trip flight from Denver Intl. Airport (DEN) to Houston Airport is S$257. But you better act fast. This figure is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DEN to IAH?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from DIA airport to IAH that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for DEN to Houston Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from DIA airport to George Bush Intercontinental Airport (IAH)?
With a flight distance of 1,400 kilometres, it's only a short hop from DEN to Houston Airport. It might be a quick flight, but it's still worth bringing something to keep you entertained on board.
Which airlines fly direct from DIA airport to Houston Airport?
Whether you're after a return or one-way flight, you'll have your pick of airlines that will take you straight from Denver Airport to Houston Airport. Here's a list of the most popular ones:

  • United Airlines - (UA) with 304 monthly flights
  • Southwest Airlines - (WN) with 69 monthly flights
  • Frontier Airlines - (F9) with 47 monthly flights
  • Spirit Airlines - (NK) with 4 monthly flights

Are Denver Intl. Airport (DEN) to IAH flight tickets cheaper when they're purchased at the last minute?
Flight prices go up and down like a yo-yo, so there are no guarantees. While last-minute deals between DIA airport and Houston Airport are possible, it's also a good idea to keep track of prices well before you fly. In fact, some airlines publicize their prices up to a year before the departure date. Expedia is continuously updating the biggest bargains around, so keep checking and be ready to grab your seat when fare prices drop.

Explore a world of travel with Expedia

Houston Airports

Houston

Denver to George Bush Intercontinental
S$257.00
*Available to Expedia members.