Find Cheap Flights from Washington to Costa Rica

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Washington to Costa Rica

(Round-trip)
Depart: Tue Aug 29 2017 Return: Sat Sep 2 2017 Trip spans 5 days
Major Airline
Major Airline
DCA
4:05a
SJO
6:50a
26h 45m
1 stop
SJO
4:36a
DCA
8:11a
27h 35m
1 stop
Depart: Tue Sep 19 2017 Return: Tue Sep 26 2017 Trip spans 8 days
JetBlue
JetBlue
DCA
4:51p
SJO
9:30a
16h 39m
1 stop
SJO
8:31a
DCA
3:26a
18h 55m
1 stop
Depart: Mon Oct 9 2017 Return: Tue Oct 17 2017 Trip spans 9 days
Aeromexico
Aeromexico
IAD
9:20p
SJO
8:50a
11h 30m
1 stop
SJO
7:50a
IAD
5:50p
10h 00m
1 stop
Depart: Fri Nov 17 2017 Return: Sat Nov 18 2017 Trip spans 2 days
Copa Airlines
Copa Airlines
IAD
4:06a
SJO
6:31p
14h 25m
1 stop
SJO
3:53a
IAD
5:59p
14h 06m
2 stops
Depart: Wed Jun 28 2017 Return: Thu Jul 13 2017 Trip spans 16 days
American Airlines
American Airlines
DCA
1:45a
SJO
11:42a
9h 57m
1 stop
SJO
10:35a
DCA
1:59a
15h 24m
1 stop
Depart: Sun Jul 2 2017 Return: Mon Jul 10 2017 Trip spans 9 days
United
United
IAD
6:00p
SJO
9:35a
15h 35m
1 stop
SJO
2:30a
IAD
5:20p
14h 50m
1 stop
Depart: Thu Nov 2 2017 Return: Tue Nov 14 2017 Trip spans 13 days
Avianca
Avianca
IAD
12:15p
SJO
7:30p
7h 15m
1 stop
SJO
12:40a
IAD
7:16a
6h 36m
1 stop
Depart: Wed Aug 30 2017 Return: Mon Sep 11 2017 Trip spans 13 days
Major Airline
Major Airline
DCA
4:05a
SJO
6:50a
26h 45m
1 stop
SJO
5:52a
DCA
10:50p
16h 58m
1 stop
Depart: Sat Sep 2 2017 Return: Sat Sep 9 2017 Trip spans 8 days
Major Airline
Major Airline
IAD
2:06a
SJO
10:01a
7h 55m
1 stop
SJO
9:44a
IAD
4:58a
19h 14m
1 stop
Depart: Sun Sep 3 2017 Return: Fri Sep 22 2017 Trip spans 20 days
Major Airline
Major Airline
DCA
7:40a
SJO
6:55a
23h 15m
1 stop
SJO
4:31a
DCA
11:26p
18h 55m
1 stop
Depart: Wed Sep 13 2017 Return: Thu Sep 21 2017 Trip spans 9 days
Major Airline
Major Airline
IAD
8:13a
SJO
6:35p
10h 22m
1 stop
SJO
9:47p
IAD
4:16a
6h 29m
1 stop
Depart: Wed Sep 27 2017 Return: Sun Oct 1 2017 Trip spans 5 days
JetBlue
JetBlue
DCA
2:00a
SJO
9:30a
7h 30m
1 stop
SJO
8:31a
DCA
3:26a
18h 55m
1 stop
Depart: Wed Sep 20 2017 Return: Tue Sep 26 2017 Trip spans 7 days
Major Airline
Major Airline
IAD
2:06a
SJO
10:01a
7h 55m
3 stops
SJO
12:23a
IAD
2:59p
14h 36m
3 stops
Depart: Thu Oct 26 2017 Return: Mon Oct 30 2017 Trip spans 5 days
Aeromexico
Aeromexico
IAD
9:20p
SJO
8:50a
11h 30m
1 stop
SJO
8:30a
IAD
6:50p
10h 20m
1 stop
Depart: Mon Dec 18 2017 Return: Mon Dec 25 2017 Trip spans 8 days
Delta
Delta
DCA
1:00a
LIR
9:03a
8h 03m
1 stop
LIR
3:00a
DCA
12:15p
9h 15m
1 stop
Depart: Mon Aug 28 2017 Return: Wed Aug 30 2017 Trip spans 3 days
JetBlue
JetBlue
DCA
2:10a
SJO
9:30a
7h 20m
1 stop
SJO
8:31a
DCA
3:40a
19h 09m
1 stop
Depart: Tue Aug 22 2017 Return: Tue Aug 29 2017 Trip spans 8 days
Major Airline
Major Airline
IAD
8:13a
SJO
6:35p
10h 22m
1 stop
SJO
9:47p
IAD
11:10a
13h 23m
1 stop
Depart: Sat Dec 9 2017 Return: Sun Dec 10 2017 Trip spans 2 days
Copa Airlines
Copa Airlines
IAD
10:13a
SJO
6:31p
8h 18m
1 stop
SJO
1:30a
IAD
5:59p
16h 29m
3 stops
Depart: Tue Jul 4 2017 Return: Mon Jul 10 2017 Trip spans 7 days
United
United
IAD
4:30a
SJO
6:20p
13h 50m
1 stop
SJO
2:30a
IAD
5:20p
14h 50m
1 stop
Depart: Tue Nov 14 2017 Return: Tue Nov 21 2017 Trip spans 8 days
American Airlines
American Airlines
DCA
2:10a
SJO
2:52p
12h 42m
1 stop
SJO
3:54a
DCA
4:49p
12h 55m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Washington
only $261
only $261
Destination

Liberia
$796
San Jose
$261