Find Cheap Flights from Washington Dulles Intl 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 Dulles Intl to Costa Rica

(Round-trip)
Depart: Sat Jul 22 2017 Return: Wed Jul 26 2017 Trip spans 5 days
American Airlines
American Airlines
IAD
12:00a
SJO
12:42p
12h 42m
1 stop
SJO
12:00a
IAD
1:28p
13h 28m
1 stop
Depart: Fri Jul 28 2017 Return: Tue Aug 1 2017 Trip spans 5 days
United
United
IAD
12:00a
SJO
4:05a
28h 05m
1 stop
SJO
12:00a
IAD
9:30a
9h 30m
1 stop
Depart: Thu Jul 27 2017 Return: Sat Jul 29 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
LIR
5:52p
17h 52m
2 stops
LIR
12:00a
IAD
4:21p
16h 21m
1 stop
Depart: Mon Jul 24 2017 Return: Tue Sep 5 2017 Trip spans 44 days
Copa Airlines
Copa Airlines
IAD
12:00a
SJO
4:15p
16h 15m
1 stop
SJO
12:00a
IAD
2:36a
50h 36m
2 stops
Depart: Mon Jul 24 2017 Return: Wed Jul 26 2017 Trip spans 3 days
Avianca
Avianca
IAD
12:00a
SJO
7:15a
7h 15m
1 stop
SJO
12:00a
IAD
6:58a
6h 58m
1 stop
Depart: Fri Jul 28 2017 Return: Wed Aug 2 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
LIR
1:50p
13h 50m
1 stop
LIR
12:00a
IAD
7:27p
19h 27m
2 stops
Depart: Fri Jul 28 2017 Return: Fri Aug 4 2017 Trip spans 8 days
United
United
IAD
12:00a
SJO
5:00p
17h 00m
1 stop
SJO
12:00a
IAD
12:15p
12h 15m
1 stop
Depart: Fri Jul 28 2017 Return: Mon Aug 7 2017 Trip spans 11 days
United
United
IAD
12:00a
SJO
4:05a
28h 05m
1 stop
SJO
12:00a
IAD
12:15p
12h 15m
1 stop
Depart: Sat Jul 29 2017 Return: Sat Aug 5 2017 Trip spans 8 days
Copa Airlines
Copa Airlines
IAD
12:00a
SJO
5:55a
29h 55m
2 stops
SJO
12:00a
IAD
5:23a
29h 23m
1 stop
Depart: Mon Jul 24 2017 Return: Tue Aug 1 2017 Trip spans 9 days
American Airlines
American Airlines
IAD
12:00a
SJO
12:42p
12h 42m
1 stop
SJO
12:00a
IAD
7:08a
7h 08m
1 stop
Depart: Thu Jul 27 2017 Return: Fri Aug 25 2017 Trip spans 30 days
Avianca
Avianca
IAD
12:00a
SJO
7:15a
7h 15m
1 stop
SJO
12:00a
IAD
11:38a
11h 38m
1 stop
Depart: Thu Jul 27 2017 Return: Sun Jul 30 2017 Trip spans 4 days
United
United
IAD
12:00a
SJO
12:20a
24h 20m
1 stop
SJO
12:00a
IAD
10:00a
10h 00m
1 stop
Depart: Sun Jul 23 2017 Return: Wed Jul 26 2017 Trip spans 4 days
American Airlines
American Airlines
IAD
12:00a
SJO
3:40p
15h 40m
2 stops
SJO
12:00a
IAD
1:28p
13h 28m
1 stop
Depart: Fri Jul 28 2017 Return: Sun Jul 30 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
SJO
6:05p
18h 05m
1 stop
SJO
12:00a
IAD
6:58a
6h 58m
1 stop
Depart: Tue Jul 25 2017 Return: Thu Jul 27 2017 Trip spans 3 days
Copa Airlines
Copa Airlines
IAD
12:00a
SJO
8:00p
20h 00m
2 stops
SJO
12:00a
IAD
7:01a
7h 01m
1 stop
Depart: Fri Jul 28 2017 Return: Sat Jul 29 2017 Trip spans 2 days
United
United
IAD
12:00a
LIR
1:50p
13h 50m
1 stop
LIR
12:00a
IAD
4:21p
16h 21m
1 stop
Depart: Sun Jul 23 2017 Return: Thu Jul 27 2017 Trip spans 5 days
American Airlines
American Airlines
IAD
12:00a
SJO
7:15a
7h 15m
1 stop
SJO
12:00a
IAD
1:28p
13h 28m
1 stop
Depart: Tue Jul 25 2017 Return: Thu Aug 3 2017 Trip spans 10 days
Avianca
Avianca
IAD
12:00a
LIR
1:48a
25h 48m
1 stop
LIR
12:00a
IAD
7:14p
19h 14m
1 stop
Depart: Thu Jul 27 2017 Return: Wed Aug 2 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
LIR
3:25p
15h 25m
1 stop
LIR
12:00a
IAD
6:56a
6h 56m
1 stop
Depart: Thu Jul 27 2017 Return: Thu Aug 3 2017 Trip spans 8 days
Avianca
Avianca
IAD
12:00a
LIR
1:48a
25h 48m
1 stop
LIR
12:00a
IAD
7:14p
19h 14m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.

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Airports
Origin

Washington
$452
Destination

Liberia
$578
San Jose
$452