$135 Cheap JetBlue Airways flights San Juan (SJU) to Jacksonville (JAX)

Grab cheap return JetBlue Airways flights from $251 from SJU to JAX by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $135 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.

Check for JetBlue Airways flights from SJU to JAX about one month before you want to go. The most affordable time to book an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. Regardless of ticket type or itinerary, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Travelers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**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 find the earliest departure from SJU to JAX with JetBlue Airways, filter your search by "Morning" and "Early Morning." Booking 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.