DCA to LIR from $340 in economy – flightdeals.net

Home Premium Fare Deals About

United Airlines

UAUnited Airlines

Round Trip•Economy

Ronald Reagan Washington National Airport

Washington, United States

Daniel Oduber Quirós International Airport

Liberia, Costa Rica

$616 USD

-45%$340 USD

Verified 2 days ago

June 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2$340 3$340 4$370 5$402 6$435 7$340 8$340 9$346 10$554 11$571 12$475 13$378 14$374 15$393 16$340 17$560 18$561 19$437 20$610 21$579 22$369 23$369 24$606 25$437 26$428 27$391 28$438 29$368 30$340 1$560 2$553 3$351 4$351 5$646

Fair Availability

22% of dates checked are available within 10% of the lowest price

Thursday, June 18th, 2026

3 round-trip options

Returning

Thu, Jun 25, 2026•7 Day Trip

$561 USD

Returning

Mon, Jun 29, 2026•11 Day Trip

$702 USD

Returning

Tue, Jun 30, 2026•12 Day Trip

$778 USD