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 (IAD) 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
06/18/25
direct
AV0663
04h 30min
Return
07/15/25
direct
AV0662
04h 35min
Avianca
$261
Washington DC
San Jose, Costa Rica
Outbound
06/18/25
direct
AV0663
04h 30min
Return
07/15/25
direct
AV0662
04h 35min
Avianca ?
$262
Washington DC
San Jose, Costa Rica
Outbound
06/18/25
1 Stopover (DFW)
AA0524, AA0467
12h 14min
Return
07/15/25
2 Stopovers (DFW, CLT)
AA0320, AA2815, AA5549
21h 59min
American Airlines ?
$310
Prices based on recent searches, subject to last-minute changes
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