flight_takeoff DEN → IAH

Cheap Flights from Denver to Houston

Compare fares on the short-haul flight from Denver to Houston — a southeastbound route of about 862 miles, typically flown nonstop in around 2h 15m.

straighten

Distance

862 mi

1,387 km

schedule

Est. flight time

2h 15m

nonstop

flight

Nonstop service

Available

3 carriers

language

Time difference

1 hour ahead

Houston

Flying from Denver to Houston

Flights from Denver International Airport (DEN) to George Bush Intercontinental Houston Airport (IAH) cover roughly 862 miles (1,387 km) on a southeastbound heading, a nonstop flight of about 2h 15m. The route crosses 1 time zone — Houston is 1 hour ahead of Denver. It's served by 3 airlines.

Lets Fly Travel compares live fares across hundreds of airlines to find the best deal on this route — and every booking is reviewed by a real travel agent before ticketing.

Airlines on this route

Carriers that have operated nonstop service between DEN and IAH include:

flightFrontier Airlines flightSpirit Airlines flightUnited Airlines

Airline availability and fares change over time — search your dates for current options.

Best time to fly Denver to Houston

Fare patterns and travel conditions vary by season. Here's what to expect on the DEN–IAH route throughout the year.

Jan–Feb

Winter weekdays on the Denver–Houston route are often lightly booked — a good window for budget-conscious travelers.

Mar–May

Spring demand picks up, especially around school break periods. Searching Tuesday–Thursday departures usually surfaces the cheapest fares.

Jun–Aug

Summer travel is busy on this short-haul flight. Booking 3–5 weeks out and avoiding Friday/Sunday departures helps keep costs down.

Sep–Oct

Post-summer shoulder period often brings the lowest fares on the DEN–IAH route. Weather is usually still pleasant at both ends.

Nov–Dec

Holiday travel between Denver and Houston books up fast. Set a fare alert and book as soon as you confirm your plans.

flight_land Arriving at

George Bush Intercontinental Houston Airport

Houston is served by George Bush Intercontinental Houston Airport (IATA: IAH , ICAO: KIAH). Allow time for baggage claim and ground transportation after landing.

IATA Code

IAH

Flight Time

~2h 15m

Distance

862 mi

tips_and_updates Arrival tips

›Check in online to save time at the airport.
›Arrive 2 hours before departure.
›Compare fares across several nearby dates for best value.

Denver to Houston — FAQs

How long is the flight from Denver to Houston? expand_more

A nonstop flight from Denver (DEN) to Houston (IAH) takes approximately 2h 15m, covering a distance of about 862 miles (1387 km). Actual flight time varies with aircraft, routing and winds.

Which airlines fly from Denver to Houston? expand_more

Airlines that have operated nonstop service on the DEN–IAH route include Frontier Airlines, Spirit Airlines, United Airlines. Use our search to compare current carriers, schedules and fares.

Is there a nonstop flight from Denver to Houston? expand_more

Yes. The DEN–IAH route has nonstop service. Nonstop availability can vary by season and day of week, so check live results for your dates.

How far is Houston from Denver? expand_more

The distance from Denver (DEN) to Houston (IAH) is about 862 miles (1387 km) as the crow flies.

What is the time difference between Denver and Houston? expand_more

Houston is 1 hour ahead of Denver. Factor the time change into your arrival and connection planning.

When is the best time to book flights from Denver to Houston? expand_more

For domestic routes like Denver to Houston, booking about 1–3 months ahead and choosing mid-week departures usually finds the best prices. Avoid peak Friday and Sunday travel where possible.