Liberia (LIR) to Portland (PDX) flight deal in economy from $428

American AirlinesAAAmerican Airlines
Round Trip•Economy
Costa RicaLIR

Daniel Oduber Quirós International Airport

Liberia, Costa Rica
United StatesPDX

Portland International Airport

Portland, United States
$762 USD
-44%$428 USD
Verified 2 days ago
Limited Availability
13% of dates checked are available within 10% of the lowest price

Thursday, December 10th, 2026

6 round-trip options

Returning
Wed, Dec 16, 2026•6 Day Trip
$893 USD
Google Flights
Returning
Thu, Dec 17, 2026•7 Day Trip
$984 USD
Google Flights
Returning
Sun, Dec 20, 2026•10 Day Trip
$1,037 USD
Google Flights
Returning
Mon, Dec 21, 2026•11 Day Trip
$1,037 USD
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Returning
Tue, Dec 22, 2026•12 Day Trip
$1,037 USD
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Returning
Wed, Dec 23, 2026•13 Day Trip
$722 USD
Google Flights