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

Monday, December 7th, 2026

5 round-trip options

Returning
Mon, Dec 14, 2026•7 Day Trip
$622 USD
Google Flights
Returning
Wed, Dec 16, 2026•9 Day Trip
$617 USD
Google Flights
Returning
Fri, Dec 18, 2026•11 Day Trip
$617 USD
Google Flights
Returning
Sat, Dec 19, 2026•12 Day Trip
$745 USD
Google Flights
Returning
Sun, Dec 20, 2026•13 Day Trip
$617 USD
Google Flights