SJO to SEA from $438 in economy – flightdeals.net

Home Premium Fare Deals About

American Airlines

AAAmerican Airlines

Round Trip•Economy

Juan Santamaría International Airport (SJO)

San José, Costa Rica

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$710 USD

-38%$438 USD

Verified about 4 hours ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$614 1$617 2$617 3$674 4$589 5$791 6$623 7$521 8$644 9$674 10$467 11$589 12$725 13$770 14$725 15$467 16$467 17$467 18$438 19$467 20$472 21$467 22$467 23$467 24$467 25$467 26$495 27$500 28$495 29$467 30$467 1$495 2$495 3$495 4$500

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Sunday, September 13th, 2026

1 round-trip options

Returning

Mon, Sep 21, 2026•8 Day Trip

$770 USD