$104 Cheap Frontier Airlines flights Raleigh (RDU) to Phoenix (PHX)

You’ll discover affordable return Frontier Airlines flights from $208 from RDU to PHX by filtering your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $104 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 Phoenix are often cheaper in the low-season months of July and August. Whether you’re searching for a round-trip or one-way ticket, you could land a better deal then.

For cheap Frontier Airlines fares from Raleigh - Durham Intl. Airport (RDU) to Sky Harbor Intl. Airport (PHX), 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 how much you pay. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey 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.

Select our “Nonstop” filter when searching for direct Frontier Airlines flights from RDU to PHX. It’s also an easy way to compare other airlines servicing the same direct trip.

Search Frontier Airlines’s earliest flights from RDU to PHX by checking 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.

Frontier Airlines flights from Raleigh - Durham Intl. Airport (RDU) to Phoenix touch down at Sky Harbor Intl. Airport (PHX). This is the main gateway here.

A rewarding loyalty program and the chance to rack up points through Frontier Miles are the start of the reasons to leave from RDU to PHX with Frontier Airlines. Plus, when you join Expedia’s free One Key™ program, you can earn 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.

Changes are often free within 24 hours of making your booking, but your airline may charge you after that. For further information about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your plans without additional charges, check the “Changes included” and “No cancel fee” filters when organizing your next getaway.