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AA
American Airlines
Round Trip
•
Economy
DCA
Ronald Reagan Washington National Airport
Washington, United States
LIR
Daniel Oduber Quirós International Airport
Liberia, Costa Rica
$452 USD
-29%
$320
USD
Verified Mar 31, 2026 at 4:41 PM
March 2026
Today
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$401
1
$381
2
$396
3
$396
4
$376
5
$376
Rare Availability
9% of dates checked are available within 10% of the lowest price
Sunday, March 29th, 2026
0 round-trip options
No flight details available for this date.
DCA
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