LIR to PDX from $439 in economy – flightdeals.net

Home Premium Fare Deals About

United Airlines

UAUnited Airlines

Round Trip•Economy

Daniel Oduber Quirós International Airport

Liberia, Costa Rica

Portland International Airport

Portland, United States

$810 USD

-46%$439 USD

Verified 14 days ago

July 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5$787 6$630 7$621 8$621 9$607 10$565 11$574 12$517 13$517 14$511 15$510 16$508 17$496 18$517 19$454 20$596 21$453 22$587 23$468 24$468 25$727 26$517 27$596 28$507 29$637 30$651 31$651 1$610 2$774

Limited Availability

11% of dates checked are available within 10% of the lowest price

Tuesday, July 21st, 2026

3 round-trip options

Returning

Tue, Jul 28, 2026•7 Day Trip

$453 USD

Returning

Thu, Jul 30, 2026•9 Day Trip

$587 USD

Returning

Fri, Jul 31, 2026•10 Day Trip

$587 USD