BOS to SJO from $376 in economy – flightdeals.net

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United Airlines

UAUnited Airlines

Round Trip•Economy

Logan International Airport

Boston, United States

Juan Santamaría International Airport (SJO)

San José, Costa Rica

$628 USD

-40%$376 USD

Verified 14 days ago

July 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5$376 6$515 7$422 8$515 9$515 10$630 11$582 12$640 13$619 14$538 15$666 16$651 17$721 18$707 19$893 20$666 21$515 22$582 23$515 24$707 25$660 26$827 27$736 28$534 29$596 30$550 31$738 1$657 2$726

Fair Availability

20% of dates checked are available within 10% of the lowest price

Friday, July 3rd, 2026

0 round-trip options

No flight details available for this date.