Find Deals on Flights from Costa Rica to Washington Dulles Intl

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Costa Rica to Washington Dulles Intl

(Round-trip)
Depart: Thu Feb 16 2017 Return: Mon Feb 27 2017 Trip spans 12 days
Major Airline
Major Airline
SJO
2:43a
IAD
1:06p
10h 23m
1 stop
IAD
11:07p
SJO
10:50a
11h 43m
1 stop
Depart: Tue Feb 7 2017 Return: Thu Feb 23 2017 Trip spans 17 days
Delta
Delta
SJO
3:10a
IAD
10:41a
7h 31m
1 stop
IAD
1:56a
SJO
4:55p
14h 59m
1 stop
Depart: Tue Mar 7 2017 Return: Wed Mar 15 2017 Trip spans 8 days
American Airlines
American Airlines
SJO
10:46a
IAD
4:11a
17h 25m
1 stop
IAD
3:05a
SJO
11:25a
8h 20m
1 stop
Depart: Mon Jan 23 2017 Return: Thu Jan 26 2017 Trip spans 4 days
United
United
SJO
2:30a
IAD
10:49a
8h 19m
1 stop
IAD
7:30a
SJO
5:15p
9h 45m
1 stop
Depart: Tue Feb 21 2017 Return: Sun Feb 26 2017 Trip spans 6 days
Copa Airlines
Copa Airlines
SJO
12:41p
IAD
6:06p
29h 25m
1 stop
IAD
10:28a
SJO
5:40p
7h 12m
1 stop
Depart: Fri Apr 7 2017 Return: Mon Apr 17 2017 Trip spans 11 days
Avianca
Avianca
SJO
8:20a
IAD
3:10p
6h 50m
1 stop
IAD
7:10a
SJO
9:40a
26h 30m
2 stops
Depart: Sat Feb 18 2017 Return: Fri Feb 24 2017 Trip spans 7 days
Aeromexico
Aeromexico
SJO
1:03a
IAD
5:37p
16h 34m
1 stop
IAD
8:08p
SJO
7:37a
11h 29m
1 stop
Depart: Tue Feb 14 2017 Return: Mon Feb 20 2017 Trip spans 7 days
Major Airline
Major Airline
SJO
7:47p
IAD
9:10a
13h 23m
1 stop
IAD
12:10a
SJO
12:30p
12h 20m
1 stop
Depart: Thu Mar 9 2017 Return: Wed Mar 15 2017 Trip spans 6 days
Delta
Delta
SJO
9:05a
IAD
6:20p
9h 15m
1 stop
IAD
5:46a
SJO
6:17p
12h 31m
1 stop
Depart: Fri Jun 16 2017 Return: Wed Jun 21 2017 Trip spans 6 days
Major Airline
Major Airline
SJO
12:27a
IAD
2:55p
14h 28m
1 stop
IAD
8:29a
SJO
4:21p
7h 52m
1 stop
Depart: Tue Mar 14 2017 Return: Tue Mar 21 2017 Trip spans 8 days
American Airlines
American Airlines
SJO
3:30a
IAD
10:41a
7h 11m
1 stop
IAD
1:05a
SJO
11:51a
10h 46m
1 stop
Depart: Mon Jan 30 2017 Return: Wed Feb 22 2017 Trip spans 24 days
United
United
SJO
2:30a
IAD
10:49a
8h 19m
1 stop
IAD
5:10p
SJO
8:40a
15h 30m
1 stop
Depart: Wed Mar 15 2017 Return: Mon Mar 20 2017 Trip spans 6 days
American Airlines
American Airlines
SJO
10:46a
IAD
2:45a
15h 59m
1 stop
IAD
3:05a
SJO
11:25a
8h 20m
1 stop
Depart: Wed Feb 1 2017 Return: Thu Feb 23 2017 Trip spans 23 days
United
United
SJO
2:00a
IAD
10:17a
8h 17m
1 stop
IAD
7:31a
SJO
5:15p
9h 44m
1 stop
Depart: Tue Jan 31 2017 Return: Thu Feb 23 2017 Trip spans 24 days
Delta
Delta
SJO
9:25a
IAD
6:04p
8h 39m
1 stop
IAD
1:56a
SJO
4:55p
14h 59m
1 stop
Depart: Sun Mar 19 2017 Return: Wed Mar 22 2017 Trip spans 4 days
Copa Airlines
Copa Airlines
SJO
12:32a
IAD
9:10a
8h 38m
1 stop
IAD
12:29p
SJO
6:17a
17h 48m
1 stop
Depart: Sat Feb 25 2017 Return: Sat Mar 4 2017 Trip spans 8 days
Major Airline
Major Airline
SJO
9:36p
IAD
1:06p
15h 30m
1 stop
IAD
11:21p
SJO
10:35a
11h 14m
1 stop
Depart: Thu Mar 16 2017 Return: Tue Mar 21 2017 Trip spans 6 days
American Airlines
American Airlines
SJO
9:18a
IAD
4:55p
7h 37m
1 stop
IAD
1:05a
SJO
11:51a
10h 46m
1 stop
Depart: Thu Feb 2 2017 Return: Wed Feb 22 2017 Trip spans 21 days
United
United
SJO
2:30a
IAD
3:20p
12h 50m
1 stop
IAD
5:10p
SJO
10:05a
16h 55m
1 stop
Depart: Tue Apr 11 2017 Return: Mon Apr 17 2017 Trip spans 7 days
Delta
Delta
SJO
10:09a
IAD
5:43p
7h 34m
1 stop
IAD
3:00p
SJO
9:46a
18h 46m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
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

San Jose
$246
Destination

Washington
$246