$77 Cheap Frontier Airlines flights Denver (DEN) to Houston (IAH)

Grab cheap return Frontier Airlines flights from $154 from DEN to IAH by sorting your results from “Price (lowest to highest)” on Expedia. Or look for deals from $77 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

November is one of the least expensive months to get away to Houston with Frontier Airlines. You could also find great prices on one-way and round-trip fares in February.

To find cheap Frontier Airlines fares from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH), start searching one to three months before your intended departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the overall cost. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

You can easily fly from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH) on one of Frontier Airlines’s 14 direct weekly flights. Use Expedia’s “Nonstop” and “Airline” filters to find the Frontier Airlines flight that’ll take you to IAH at your preferred time.

Take off from Denver Intl. Airport (DEN) for George Bush Intercontinental Airport (IAH) on a nonstop Frontier Airlines flight, and you’ll be airborne for around 2h 31m.

Frontier Airlines has the most flights from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH) on Saturday. With up to 2 daily departures, you’ll get the most flexibility and choice on this day.

The first flight from DEN to IAH with Frontier Airlines departs at 8:43AM UTC-7. You’ll land at 12:14PM UTC-6. The last Frontier Airlines flight of the day takes off at 8:01PM UTC-7 and arrives at 11:34PM UTC-6. With approximately 20% fewer cancellations for early and mid-morning departures, heading out early is usually the smartest choice.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Frontier Airlines flights from Denver Intl. Airport (DEN) to Houston arrive at George Bush Intercontinental Airport (IAH) and William P. Hobby Airport (HOU). The main Houston gateway served by this carrier is IAH. It’s worth considering flights arriving at nearby airports on Expedia as there may be lower fares.

A rewarding loyalty program and the ability to rack up points through Frontier Miles are the start of the reasons to jet off from DEN to IAH with Frontier Airlines. Plus, by joining Expedia’s free One Key™ program, you can receive OneKeyCash™* alongside Frontier Airlines’s loyalty program earnings. It’s yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH) route, Frontier Airlines typically operates Airbus A321neo and Airbus A320neo planes. Keep in mind that last-minute changes are possible for operational needs, so your flight may be on another aircraft.

Changes are usually free within 24 hours of booking, but your airline may add a charge after that time. For further information about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to make changes without extra charges, check the “No cancel fee” or “Changes included” filter when planning your next break.