Boston (BOS) to San José (SJO) flight deal in economy from $376

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesBOS

Logan International Airport

Boston, United States
Costa RicaSJO

Juan Santamaría International Airport (SJO)

San José, Costa Rica
$628 USD
-40%$376 USD
Verified 15 days ago
Fair Availability
20% of dates checked are available within 10% of the lowest price

Thursday, December 10th, 2026

5 round-trip options

Returning
Thu, Dec 17, 2026•7 Day Trip
$718 USD
Google Flights
Returning
Sat, Dec 19, 2026•9 Day Trip
$846 USD
Google Flights
Returning
Mon, Dec 21, 2026•11 Day Trip
$718 USD
Google Flights
Returning
Tue, Dec 22, 2026•12 Day Trip
$772 USD
Google Flights
Returning
Wed, Dec 23, 2026•13 Day Trip
$718 USD
Google Flights