Cheap Spirit Airlines flights Jacksonville (JAX) to Boston (BOS)

You’ll discover cheap round-trip Spirit Airlines flights from JAX to BOS by filtering your results from “Price (lowest to highest)” on Expedia. Or search for options for a one-way journey.**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.

Spirit Airlines flights to Boston are generally more affordable in the off-peak months of January and February. Whether you’re in search of a one-way or a return ticket, you could score a better deal then.

Begin your search one to three months before your departure to find cheap fares on Spirit Airlines flights from Jacksonville Intl. Airport (JAX) to Logan Intl. Airport (BOS). 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 reduce 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.

Enter your dates, press search and check “Nonstop” on Expedia to browse any direct flights from JAX to BOS with Spirit Airlines or another airline.

Browse Spirit Airlines’s earliest flights from JAX to BOS by using our “Morning” and “Early Morning” filters. Not only will you get to your destination sooner, early departures also have a 20% less chance of being 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.

Logan Intl. Airport (BOS) is the primary Boston gateway for Spirit Airlines flights from Jacksonville Intl. Airport (JAX).

Fly from JAX to BOS with Spirit Airlines and enjoy a range of perks including a rewarding loyalty program. When booking through Expedia as a Free Spirit and One Key™ member, you can 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.

Changes are typically free within 24 hours of making a booking, but your airline may add a charge after that. For further information about altering your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your plans without additional costs, apply the “No cancel fee” or “Changes included” filter when organizing your next break.