
$94 Cheap Frontier Airlines flights from Houston to Denver (IAH to DEN)
Find The Best Day To Fly from Houston to Denver
Amazing Frontier Airlines IAH to DEN Flight Deals
The cheapest flights to Denver Intl. found within the past 7 days were $85 round trip and $94 one way. Prices and availability subject to change. Additional terms may apply.
DEN From IAH Economy Coach Packages on Similar Airlines



Frequently asked questions
Discover our best Frontier Airlines flight from Houston IAH to Denver DEN
To find the best deals on flights to Houston from Denver with Frontier Airlines, just enter your travel dates, filter by Frontier Airlines, and hit search. You’ll find 2 flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Houston IAH to Denver DEN with Frontier Airlines
If you’re planning a round trip, booking return flights with Frontier Airlines is usually the most cost-effective option. With airfares ranging from $85 to $110, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way Frontier Airlines flights from Houston IAH to Denver DEN
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Frontier Airlines flight from Houston to Denver costs from $94. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Denver DEN from Houston IAH with Frontier Airlines
To find a cheap Frontier Airlines flight from Houston IAH to Denver DEN, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on Frontier Airlines flights from Houston IAH to Denver DEN
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as September, or if you book a flight with a stopover.
Find nonstop flights from Houston IAH to Denver DEN with Frontier Airlines
If you’re keen to be on Denver soil fast, don’t waste time with a stopover—filter your search results to show direct Frontier Airlines flights only. The journey takes around 2 hour(s) 40 min(s) – so you’ll be there before you know it.
Flexible airline tickets for Frontier Airlines flights from Houston IAH to Denver DEN
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Denver DEN from Houston IAH with Frontier Airlines on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
DEN | USA | Denver Intl. | 13 |
MCO | USA | Orlando Intl. | 7 |
CUN | MEX | Cancun Intl. | 6 |
GDL | MEX | Don Miguel Hidalgo y Costilla Intl. | 5 |
PHL | USA | Philadelphia Intl. | 2 |
ORD | USA | O'Hare Intl. | 2 |
MIA | USA | Miami Intl. | 1 |
LAS | USA | McCarran Intl. | 1 |
MEX | MEX | Mexico City Intl. | 1 |
LAX | USA | Los Angeles Intl. | 1 |
Travelers ❤️ these 🏨 after their flight to Denver

The Westin Denver International Airport
Reviewed on Jul 28, 2025

Microtel Inn & Suites by Wyndham Denver Airport
Reviewed on Jul 30, 2025

Gaylord Rockies Resort & Convention Center
Reviewed on Jul 26, 2025
Popular Frontier Airlines Flight Routes from IAH
Top Frontier Airlines Flight Routes from DEN
- Frontier Airlines DEN to SAN
- Frontier Airlines DEN to IAH
- Frontier Airlines DEN to PHL
- Frontier Airlines DEN to PDX
- Frontier Airlines DEN to JFK
- Frontier Airlines DEN to DTW
- Frontier Airlines DEN to LAS
- Frontier Airlines DEN to ATL
- Frontier Airlines DEN to LAX
- Frontier Airlines DEN to ORD
- Frontier Airlines DEN to DFW
Top Flights for Frontier Airlines originating from IAH
Domestic
- Philadelphia to Orlando (PHL - MCO)
- Atlanta to New York (ATL - LGA)
- Los Angeles to Newark Liberty Intl. Airport (LAX - EWR)
- Los Angeles to Las Vegas (LAX - LAS)
- Atlanta to Newark Liberty Intl. Airport (ATL - EWR)
- Newark Liberty Intl. Airport to Los Angeles (EWR - LAX)
- Atlanta to Fort Lauderdale (ATL - FLL)
- Los Angeles to New York (LAX - JFK)
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)
- New York to San Juan (JFK - SJU)
International
- New York to Fort Lauderdale (JFK - FLL)
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)
- Los Angeles to Las Vegas (LAX - LAS)
- Atlanta to Miami (ATL - MIA)
- New York to San Juan (JFK - SJU)
- Los Angeles to New York (LAX - LGA)
- Philadelphia to Orlando (PHL - MCO)
- Atlanta to New York (ATL - LGA)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- San Francisco to Las Vegas (SFO - LAS)
Most Popular
- Boston to Dallas (BOS - DFW)
- Dallas to Phoenix (DFW - PHX)
- American Airlines Dallas (DFW) to Las Vegas (LAS) flights
- Dallas to New Orleans (DFW - MSY)
- Baltimore to Dallas (BWI - DFW)
- Dallas to San Francisco (DFW - SFO)
- Houston to Dallas (HOU - DFW)
- Dallas to Boston (DFW - BOS)
- Dallas to Atlanta (DFW - ATL)
- Minneapolis to Dallas (MSP - DFW)
- Dallas to London (DFW - LHR)
- Austin to Denver (AUS - DEN)
- Dallas to Detroit (DFW - DTW)
- Dallas to Orlando (DFW - MCO)
- Dallas to Cancun (DFW - CUN)
- Phoenix to Dallas (PHX - DFW)
- Los Angeles to Dallas (LAX - DFW)
- Chicago to Dallas (ORD - DFW)
- Dallas to Denver (DFW - DEN)
- Orlando to Dallas (MCO - DFW)
- Dallas to Chicago (DFW - ORD)
- Detroit to Dallas (DTW - DFW)
- Denver to Dallas (DEN - DFW)
- Los Angeles to Austin (LAX - AUS)
- Atlanta to Dallas (ATL - DFW)
- New York to Dallas (JFK - DFW)
- Dallas to Miami (DFW - MIA)
- Philadelphia to Dallas (PHL - DFW)
- Dallas to Seattle (DFW - SEA)
- Dallas to Los Angeles (DFW - LAX)