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

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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

July 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29$368 30$340 1$560 2$553 3$351 4$351 5$646 6$532 7$512 8$621 9$653 10$528 11$569 12$588 13$635 14$681 15$579 16$702 17$673 18$403 19$555 20$589 21$596 22$596 23$788 24$742 25$526 26$594 27$630 28$587 29$610 30$446 31$746 1$727 2$966

Fair Availability

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

Monday, July 20th, 2026

3 round-trip options

Returning

Mon, Jul 27, 2026•7 Day Trip

$639 USD

Returning

Fri, Jul 31, 2026•11 Day Trip

$589 USD

Returning

Sat, Aug 1, 2026•12 Day Trip

$794 USD