Flights from Washington DC to Costa Rica

Our cheapest offers for flights from Washington DC to Costa Rica

Here you can compare cheap flights from Washington DC (WAS) to Costa Rica for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Costa Rica. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Washington-DC
San Jose, Costa Rica
Outbound
06/20/25
1 Stopover (SAL)
AV0583, AV0639
17h 35min
Return
07/19/25
1 Stopover (SAL)
AV0318, AV0580
11h 15min
Avianca ?
$418
Washington-DC
San Jose, Costa Rica
Outbound
06/20/25
1 Stopover (SAL)
AV0585, AV0639
15h 15min
Return
07/19/25
1 Stopover (SAL)
AV0650, AV0584
11h 00min
Avianca ?
$650
Prices based on recent searches, subject to last-minute changes
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