$158 Cheap JetBlue Airways flights Newark Liberty Intl. Airport (EWR) to San José (SJO)

Apply the "Price (lowest to highest)" filter on Expedia to find cheap JetBlue Airways round-trip flights from $344 from EWR to SJO. Affordable one-way options from $158 are available too.**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.

Search for JetBlue Airways flights from EWR to SJO about one month before you want to leave. The most affordable time to reserve an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your ticket type or itinerary, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Travelers who book on a Sunday can save 17% on average 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 EWR to SJO with JetBlue Airways, filter your results by "Morning" and "Early Morning." Choosing an early flight usually means you're less likely to experience cancellations.**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.