$100 Cheap Frontier Airlines flights Salt Lake City (SLC) to San Antonio (SAT)

Set the “Price (lowest to highest)” filter on Expedia to search for cheap Frontier Airlines round-trip flights from $188 from SLC to SAT. Affordable one-way tickets from $100 are also on offer.**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.

Browse for round-trip or one-way flights to San Antonio in January or September. You could find an affordable fare with Frontier Airlines during these off-season months.

Begin your search one to three months before your departure to get cheaper fares on Frontier Airlines flights from Salt Lake City Intl. Airport (SLC) to San Antonio Intl. Airport (SAT). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic flights.*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.

To see if there’s a direct trip from SLC to SAT with Frontier Airlines or another carrier, check the “Nonstop” filter when searching for flights.

Browse Frontier Airlines’s earliest flights from SLC to SAT by checking the “Early Morning” and “Morning” filters. Not only will you arrive at your destination sooner, early departures are also 20% less likely to be canceled.**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.

San Antonio Intl. Airport (SAT) is the primary San Antonio hub for Frontier Airlines flights from Salt Lake City Intl. Airport (SLC).

With a rewarding loyalty program, Frontier Airlines is a top choice for many travelers journeying from SLC to SAT. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making your booking, but your airline may add a charge after that. For more information about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without additional costs, apply the “Changes included” and “No cancel fee” filters when organizing your next break.