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

You’ll discover cheap round-trip Spirit Airlines flights from BOS to JAX by organizing your results from “Price (lowest to highest)” on Expedia. Or search for deals for a one-way trip.**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 least expensive months to get away to Jacksonville with Spirit Airlines. You could also find great prices on one-way and return fares in November.

Start searching one to three months ahead of your travel date to get cheaper fares on Spirit Airlines flights from Logan Intl. Airport (BOS) to Jacksonville Intl. Airport (JAX). 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.

To see if there’s a direct route from BOS to JAX with Spirit Airlines or any other airlines, use our “Nonstop” filter when looking for tickets.

Search Spirit Airlines’s earliest flights from BOS to JAX by checking the “Morning” and “Early Morning” filters. Not only will you arrive 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.

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

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

It’s generally possible to change or cancel your flight, although there may be a charge if your booking was made more than 24 hours ago. Prefer to keep your options open? Apply the “Changes included” and “No cancel fee” filters to find flights that won’t penalize you if you have to revise your plans. To modify your booking, head to “Trips,” select your flight and click on “Manage Booking” for further information.