Cheap Frontier Airlines flights Denver (DEN) to Harlingen (HRL)

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Flights from Denver (DEN) to Harlingen (HRL)
Origin airport
Denver Intl.
Destination airport
Valley Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Popular airline
United
Distance
1024 mi

Frequently asked questions

How much is a Frontier Airlines flight from Denver Intl. Airport (DEN) to Valley Intl. Airport (HRL)?
Use the "Price (lowest to highest)" filter on Expedia to find cheap Frontier Airlines return flights from DEN to HRL. Affordable one-way tickets are available too.**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.
What is the cheapest month to fly from DEN to HRL with Frontier Airlines?
Search for round-trip or one-way flights to Harlingen in January or September. You could find a cheap fare with Frontier Airlines during these quieter months.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Valley Intl. Airport (HRL) with Frontier Airlines?
To find cheap Frontier Airlines fares from Denver Intl. Airport (DEN) to Valley Intl. Airport (HRL), start searching one to three months before your planned 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 affect what you pay. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight 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.
Does Frontier Airlines fly nonstop from Denver Intl. Airport (DEN) to Valley Intl. Airport (HRL)?
To figure out if there's a direct route from DEN to HRL with Frontier Airlines or another airline, select the "Nonstop" filter when looking for flights.
What is the earliest Frontier Airlines flight from DEN to HRL?
Find Frontier Airlines's earliest flights from DEN to HRL by using the "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures also experience 20% fewer cancellations.**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.
What airports does Frontier Airlines fly into in Harlingen?
Take a Frontier Airlines flight from Denver Intl. Airport (DEN) to Harlingen, and you're most likely to land at Valley Intl. Airport (HRL). This is the airline's primary hub in this city.
Why fly with Frontier Airlines from DEN to HRL?
A rewarding loyalty program and the opportunity to collect points through Frontier Miles are the start of the reasons to depart from DEN to HRL with Frontier Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can receive OneKeyCash™* on top of Frontier Airlines's loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Frontier Airlines flight from Denver Intl. Airport (DEN) to Valley Intl. Airport (HRL)?
Depending on the type of fare you purchased, a fee will generally apply if you cancel or change your flight more than 24 hours after it has been confirmed. To find plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when you search for flights. For more details on canceling or changing your reservation, go to "Trips," select your flight and tick "Manage Booking."

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