Portland (PDX) to Liberia (LIR) flight deal from $345 USD in economy class

AAAmerican Airlines

Round Trip•Economy

PDX

Portland International Airport

Portland, United States

LIR

Daniel Oduber Quirós International Airport

Liberia, Costa Rica

$583 USD

-41%$345 USD

Verified Nov 4, 2025 at 10:40 PM

December 2025

Today

Mon

Tue

Wed

Thu

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Sun

1$423 2$423 3$359 4$359 5$359 6$345 7$345 8$345 9$345 10$359 11$363 12$455 13$349 14$423 15$352 16$519 17$656 18$660 19$901 20$928 21$713 22$1,037 23$1,085 24$1,152 25$916 26$1,011 27$669 28$587 29$427 30$345 31$345 1 2 3 4

Fair Availability

25% of dates checked are available within 10% of the lowest price

Thursday, December 25th, 2025

10 round-trip options

Returning

Tue, Dec 30, 2025•5 Day Trip

$1,041 USD

Google Flights

Returning

Wed, Dec 31, 2025•6 Day Trip

$1,041 USD

Google Flights

Returning

Thu, Jan 1, 2026•7 Day Trip

$1,220 USD

Google Flights

Returning

Fri, Jan 2, 2026•8 Day Trip

$1,717 USD

Google Flights

Returning

Sat, Jan 3, 2026•9 Day Trip

$1,988 USD

Google Flights

Returning

Sun, Jan 4, 2026•10 Day Trip

$1,562 USD

Google Flights

Returning

Mon, Jan 5, 2026•11 Day Trip

$1,281 USD

Google Flights

Returning

Tue, Jan 6, 2026•12 Day Trip

$1,244 USD

Google Flights

Returning

Wed, Jan 7, 2026•13 Day Trip

$1,021 USD

Google Flights

Returning

Thu, Jan 8, 2026•14 Day Trip

$916 USD

Google Flights