Liberia (LIR) to Portland (PDX) flight deal in economy from $439

United AirlinesUAUnited Airlines
Round Trip•Economy
Costa RicaLIR

Daniel Oduber Quirós International Airport

Liberia, Costa Rica
United StatesPDX

Portland International Airport

Portland, United States
$810 USD
-46%$439 USD
Verified 14 days ago
Limited Availability
11% of dates checked are available within 10% of the lowest price

Saturday, August 29th, 2026

3 round-trip options

Returning
Sat, Sep 5, 2026•7 Day Trip
$531 USD
Google Flights
Returning
Mon, Sep 7, 2026•9 Day Trip
$726 USD
Google Flights
Returning
Tue, Sep 8, 2026•10 Day Trip
$726 USD
Google Flights