PDX to LIR from $648 in business – flightdeals.net

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American Airlines

AAAmerican Airlines

One Way•Business Class

Portland International Airport

Portland, United States

Daniel Oduber Quirós International Airport

Liberia, Costa Rica

$711 USD

-9%$648 USD

Verified 13 days ago

September 2026

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31 1$715 2$737 3$757 4$691 5$673 6$654 7$697 8$697 9$671 10$666 11$666 12$648 13$648 14$648 15$710 16$671 17$666 18$672 19$648 20$648 21$648 22$801 23$737 24$732 25$732 26$648 27$648 28$696 29$706 30$677 1$672 2$821 3$648 4$648

Great Availability

68% of dates checked are available within 10% of the lowest price

Thursday, September 24th, 2026

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