$54 Cheap Frontier Airlines flights Salt Lake City (SLC) to Phoenix (PHX)

Apply the "Price (lowest to highest)" filter on Expedia to search for cheap Frontier Airlines round-trip flights from $76 from SLC to PHX. Affordable one-way fares from $54 are available as well.**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.

Look for affordable Frontier Airlines flights from Salt Lake City Intl. Airport (SLC) to Sky Harbor Intl. Airport (PHX) one to three months before your departure date. 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. Regardless of fare type and journey, the best day of the week to book a domestic flight is generally 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.

The first Frontier Airlines flight from SLC to PHX departs at 1:21PM UTC-7, landing at 3:15PM UTC-7. If you prefer to set off later, the last Frontier Airlines flight leaves SLC at 10:28PM UTC-7 and touches down at PHX at 12:15AM UTC-7. Flying earlier is generally a good idea as morning flights are least likely to face 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.

A rewarding loyalty program and the opportunity to collect points through Frontier Miles are the start of the reasons to travel from SLC to PHX with Frontier Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can receive OneKeyCash™* on top of any airline loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.