San José (SJO) to Boston (BOS) flight deal from $303 USD in economy class – flightdeals.net

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United Airlines

UAUnited Airlines

Round Trip•Economy

Juan Santamaría International Airport (SJO)

San José, Costa Rica

Logan International Airport

Boston, United States

$613 USD

-51%$303 USD

Verified Mar 21, 2026 at 6:20 PM

March 2026

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23 24 25 26 27 28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21$453 22$630 23$630 24$344 25$392 26$473 27$460 28$550 29$599 30$592 31$512 1$512 2$446 3$429 4$512 5$592

Extremely Rare Availability

2% of dates checked are available within 10% of the lowest price

Tuesday, March 17th, 2026

0 round-trip options

No flight details available for this date.