DCA to LIR from $300 in economy

UAUnited Airlines

Round Trip•Economy

DCA

Ronald Reagan Washington National Airport

Washington, United States

LIR

Daniel Oduber Quirós International Airport

Liberia, Costa Rica

$627 USD

-52%$300 USD

Verified 15 days ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$343 1$357 2$530 3$420 4$450 5$308 6$300 7$300 8$300 9$445 10$300 11$325 12$329 13$300 14$308 15$300 16$536 17$473 18$530 19$308 20$309 21$300 22$300 23$481 24$332 25$300 26$300 27$300 28$300 29$300 30$396 1$394 2$300 3$308 4$308

Rare Availability

6% of dates checked are available within 10% of the lowest price

Friday, September 18th, 2026

6 round-trip options

Returning

Wed, Sep 23, 2026•5 Day Trip

$628 USD

Google Flights

Returning

Fri, Sep 25, 2026•7 Day Trip

$586 USD

Google Flights

Returning

Sat, Sep 26, 2026•8 Day Trip

$530 USD

Google Flights

Returning

Mon, Sep 28, 2026•10 Day Trip

$776 USD

Google Flights

Returning

Tue, Sep 29, 2026•11 Day Trip

$760 USD

Google Flights

Returning

Thu, Oct 1, 2026•13 Day Trip

$538 USD

Google Flights

Washington (DCA) to Liberia (LIR) flight deal in economy from $300

Ronald Reagan Washington National Airport

Daniel Oduber Quirós International Airport

September 2026

Friday, September 18th, 2026