San Francisco (SFO) to Liberia (LIR) flight deal from $431 USD in economy class

ASAlaska Airlines, Inc.

Round Trip•Economy

SFO

San Francisco International Airport

San Francisco, United States

LIR

Daniel Oduber Quirós International Airport

Liberia, Costa Rica

$643 USD

-33%$431 USD

Verified Nov 28, 2025 at 2:54 AM

January 2026

Today

Mon

Tue

Wed

Thu

Fri

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Sun

29$717 30$611 31$527 1$474 2$580 3$469 4$469 5$474 6$431 7$439 8$473 9$473 10$444 11$444 12$444 13$439 14$775 15$888 16$635 17$461 18$439 19$452 20$439 21$439 22$473 23$473 24$447 25$444 26$452 27$444 28$439 29$473 30$473 31$447 1

Rare Availability

9% of dates checked are available within 10% of the lowest price

Monday, January 12th, 2026

10 round-trip options

Returning

Sat, Jan 17, 2026•5 Day Trip

$494 USD

Google Flights

Returning

Sun, Jan 18, 2026•6 Day Trip

$554 USD

Google Flights

Returning

Mon, Jan 19, 2026•7 Day Trip

$664 USD

Google Flights

Returning

Tue, Jan 20, 2026•8 Day Trip

$444 USD

Google Flights

Returning

Wed, Jan 21, 2026•9 Day Trip

$445 USD

Google Flights

Returning

Thu, Jan 22, 2026•10 Day Trip

$457 USD

Google Flights

Returning

Fri, Jan 23, 2026•11 Day Trip

$483 USD

Google Flights

Returning

Sat, Jan 24, 2026•12 Day Trip

$494 USD

Google Flights

Returning

Sun, Jan 25, 2026•13 Day Trip

$814 USD

Google Flights

Returning

Mon, Jan 26, 2026•14 Day Trip

$589 USD

Google Flights