$57 Cheap Spirit Airlines flights Boston (BOS) to Atlanta (ATL)

Finding cheap one-way Spirit Airlines flights from BOS to ATL from $57 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $111 for your next break.**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.

Begin your search one to three months before your departure to find cheaper fares on Spirit Airlines flights from Logan Intl. Airport (BOS) to Hartsfield-Jackson Atlanta Intl. Airport (ATL). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to 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.* Time it well, 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.

The earliest flight from BOS to ATL with Spirit Airlines departs at 3:50PM UTC-5. You'll touch down at 6:59PM UTC-5. The last Spirit Airlines flight of the day takes off at 3:50PM UTC-5 and arrives at 6:59PM UTC-5. With approximately 20% fewer cancellations for morning departures, beginning your travel day early is generally the best way to go.**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.

Fly from BOS to ATL with Spirit Airlines and look forward to a range of benefits starting with a rewarding loyalty program. When you book through Expedia as a Free Spirit and One Key™ member, you could also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.