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 14 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

Thursday, September 3rd, 2026

6 round-trip options

Returning

Tue, Sep 8, 2026•5 Day Trip

$826 USD

Google Flights

Returning

Thu, Sep 10, 2026•7 Day Trip

$420 USD

Google Flights

Returning

Fri, Sep 11, 2026•8 Day Trip

$434 USD

Google Flights

Returning

Sun, Sep 13, 2026•10 Day Trip

$604 USD

Google Flights

Returning

Mon, Sep 14, 2026•11 Day Trip

$604 USD

Google Flights

Returning

Wed, Sep 16, 2026•13 Day Trip

$463 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

Thursday, September 3rd, 2026