$84 Cheap Frontier Airlines flights Houston (IAH) to Denver (DEN)

You’ll discover affordable return Frontier Airlines flights from $163 from IAH to DEN by organizing your results from “Price (lowest to highest)” on Expedia. Or search for deals from $84 for a one-way trip.**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.

Frontier Airlines flights to Denver are typically more affordable in the off-peak months of January and November. Whether you’re after a one-way or a return ticket, you could find a better deal then.

Look for affordable Frontier Airlines flights from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN) one to three months prior to your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the best day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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.

Yes, you can fly from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN) on any of Frontier Airlines’s 14 weekly direct flights. Apply our “Nonstop” and “Airline” filters to find the Frontier Airlines flight that’ll take you to DEN at a time that suits you.

On average, it takes 2h 35m to travel nonstop from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN) with Frontier Airlines.

If flexibility is what you’re after, Tuesday offers the most choice for Frontier Airlines flights from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN). You can pick from 2 different departures.

Setting off from IAH at 5:35AM UTC-6, the first Frontier Airlines flight to DEN lands at 7:12AM UTC-7. Flying early means you’ll be less likely to encounter delays.* Don’t like early starts? The last Frontier Airlines flight from IAH to DEN departs at 1:14PM UTC-6 and touches down at 2:48PM UTC-7.*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.

Hop on a Frontier Airlines flight from George Bush Intercontinental Airport (IAH) to Denver, and you’ll probably come in to Denver Intl. Airport (DEN). This is the airline’s primary hub here.

A rewarding loyalty program and the ability to collect points through Frontier Miles are the start of the reasons to fly from IAH to DEN with Frontier Airlines. Plus, when you join Expedia’s free One Key™ program, you can earn OneKeyCash™* alongside Frontier Airlines’s loyalty program earnings. It’s yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely board an Airbus A321neo or an Airbus A320neo when flying Frontier Airlines from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN). However, keep in mind that a different aircraft may be assigned depending on operational demands.

Depending on your ticket type, a fee typically applies if you cancel or change your booking more than 24 hours after it’s been confirmed. To secure flexible plane tickets, select our “Changes included” or “No cancel fee” filter while searching for flights. To learn more about canceling or modifying your reservation, head to “Trips,” select your flight and tick “Manage Booking.”