DCA to LIR from $144 in economy – flightdeals.net

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American Airlines

AAAmerican Airlines

One Way•Economy

Ronald Reagan Washington National Airport

Washington, United States

Daniel Oduber Quirós International Airport

Liberia, Costa Rica

$188 USD

-23%$144 USD

Verified about 6 hours ago

July 2026

Mon

Tue

Wed

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Sun

29$194 30$194 1$231 2$221 3$176 4$150 5$237 6$221 7$221 8$226 9$442 10$202 11$150 12$144 13$150 14$144 15$149 16$351 17$395 18$283 19$150 20$144 21$215 22$181 23$221 24$280 25$150 26$144 27$144 28$144 29$149 30$170 31$170 1$144 2$144

Good Availability

51% of dates checked are available within 10% of the lowest price

Friday, July 31st, 2026

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