$105 Cheap Frontier Airlines flights Boston (BOS) to Austin (AUS)

Make use of the “Price (lowest to highest)” filter on Expedia to look for cheap Frontier Airlines round-trip flights from $188 from BOS to AUS. Affordable one-way tickets from $105 are also available.**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.

January is one of the most affordable months to jet away to Austin with Frontier Airlines. You could also find great deals on one-way and return fares in December.

Start searching one to three months ahead of your travel date to get cheap fares on Frontier Airlines flights from Logan Intl. Airport (BOS) to Austin-Bergstrom Intl. Airport (AUS). 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 spot on, 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.

Simply enter your dates, hit search and select the “Nonstop” filter on Expedia to browse any direct flights from BOS to AUS with Frontier Airlines or other airlines.

To find the earliest departures from BOS to AUS with Frontier Airlines, filter your results by “Morning” and “Early Morning.” Choosing an early flight generally means cancellations are less likely.**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.

Austin-Bergstrom Intl. Airport (AUS) is the primary Austin gateway for Frontier Airlines flights from Logan Intl. Airport (BOS).

A rewarding loyalty program and the opportunity to collect points through Frontier Miles are the start of the reasons to travel from BOS to AUS with Frontier Airlines. Plus, by joining 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.

It’s generally possible to modify or cancel your flight, although there may be a charge if you booked more than 24 hours ago. Prefer to keep your options open? Use our “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you need to alter your plans. To make changes, head to “Trips,” select your flight and click on “Manage Booking” for more details.