Find Cheap Flights from Costa Rica to Washington

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Costa Rica to Washington

(Round-trip)
Depart: Thu Jun 8 2017 Return: Tue Jun 20 2017 Trip spans 13 days
American Airlines
American Airlines
SJO
10:35a
IAD
2:45a
16h 10m
1 stop
IAD
3:00p
SJO
7:45a
16h 45m
1 stop
Depart: Wed Nov 8 2017 Return: Sat Nov 11 2017 Trip spans 4 days
Major Airline
Major Airline
SJO
8:02p
IAD
3:10a
7h 08m
1 stop
IAD
11:21p
SJO
9:56a
10h 35m
1 stop
Depart: Tue Sep 12 2017 Return: Thu Sep 28 2017 Trip spans 17 days
JetBlue
JetBlue
SJO
8:31a
DCA
8:58a
24h 27m
1 stop
DCA
11:48a
SJO
9:30a
21h 42m
1 stop
Depart: Mon Sep 11 2017 Return: Sun Sep 24 2017 Trip spans 14 days
Copa Airlines
Copa Airlines
SJO
4:27a
IAD
6:55p
14h 28m
1 stop
IAD
6:21a
SJO
7:51p
13h 30m
1 stop
Depart: Thu Nov 9 2017 Return: Tue Nov 14 2017 Trip spans 6 days
Delta
Delta
SJO
9:00a
DCA
6:09p
9h 09m
1 stop
DCA
1:00a
SJO
8:46a
7h 46m
1 stop
Depart: Tue Oct 24 2017 Return: Fri Nov 24 2017 Trip spans 32 days
United
United
SJO
3:45a
DCA
3:04p
11h 19m
1 stop
DCA
9:00a
SJO
9:00p
12h 00m
1 stop
Depart: Mon Oct 30 2017 Return: Tue Nov 28 2017 Trip spans 30 days
Avianca
Avianca
SJO
1:00p
IAD
8:16a
19h 16m
1 stop
IAD
10:15a
SJO
5:30p
7h 15m
1 stop
Depart: Tue May 23 2017 Return: Sun May 28 2017 Trip spans 6 days
American Airlines
American Airlines
SJO
3:00a
DCA
12:12p
9h 12m
1 stop
DCA
2:57p
SJO
7:44a
16h 47m
1 stop
Depart: Wed May 24 2017 Return: Sun May 28 2017 Trip spans 5 days
American Airlines
American Airlines
SJO
6:40a
DCA
2:02p
7h 22m
1 stop
DCA
2:57p
SJO
7:44a
16h 47m
1 stop
Depart: Tue Aug 15 2017 Return: Tue Aug 22 2017 Trip spans 8 days
Major Airline
Major Airline
SJO
8:23p
IAD
4:58a
8h 35m
2 stops
IAD
2:06a
SJO
10:01a
7h 55m
2 stops
Depart: Thu Oct 12 2017 Return: Mon Oct 23 2017 Trip spans 12 days
JetBlue
JetBlue
SJO
8:31a
DCA
3:26a
18h 55m
1 stop
DCA
4:51p
SJO
9:30a
16h 39m
1 stop
Depart: Fri Sep 29 2017 Return: Sat Oct 7 2017 Trip spans 9 days
Copa Airlines
Copa Airlines
SJO
4:27a
IAD
6:55p
14h 28m
1 stop
IAD
6:21a
SJO
7:51p
13h 30m
1 stop
Depart: Mon Oct 2 2017 Return: Tue Oct 10 2017 Trip spans 9 days
American Airlines
American Airlines
SJO
3:54a
DCA
4:49p
12h 55m
1 stop
DCA
2:57p
SJO
7:48a
16h 51m
1 stop
Depart: Sat Sep 2 2017 Return: Sat Sep 9 2017 Trip spans 8 days
Major Airline
Major Airline
SJO
3:30a
IAD
2:55p
11h 25m
1 stop
IAD
8:29a
SJO
3:51p
7h 22m
1 stop
Depart: Tue Sep 5 2017 Return: Sat Sep 9 2017 Trip spans 5 days
JetBlue
JetBlue
SJO
8:36a
DCA
8:58a
24h 22m
1 stop
DCA
11:48a
SJO
9:30a
21h 42m
1 stop
Depart: Wed Oct 25 2017 Return: Fri Nov 24 2017 Trip spans 31 days
United
United
SJO
8:55a
DCA
5:10p
8h 15m
1 stop
DCA
9:00a
SJO
9:00p
12h 00m
1 stop
Depart: Sun Oct 1 2017 Return: Thu Oct 5 2017 Trip spans 5 days
Copa Airlines
Copa Airlines
SJO
8:46a
IAD
6:55p
10h 09m
1 stop
IAD
6:21a
SJO
8:21p
14h 00m
1 stop
Depart: Thu Oct 19 2017 Return: Tue Oct 24 2017 Trip spans 6 days
American Airlines
American Airlines
SJO
6:38a
DCA
5:57p
11h 19m
1 stop
DCA
2:57p
SJO
7:48a
16h 51m
1 stop
Depart: Sat Oct 28 2017 Return: Tue Nov 28 2017 Trip spans 32 days
Avianca
Avianca
SJO
1:40a
IAD
8:16a
6h 36m
1 stop
IAD
10:15a
SJO
5:30p
7h 15m
1 stop
Depart: Thu Oct 26 2017 Return: Fri Nov 24 2017 Trip spans 30 days
United
United
SJO
8:55a
DCA
5:10p
8h 15m
1 stop
DCA
9:00a
SJO
9:00p
12h 00m
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.

We compile tonnes of data for you
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,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

San Jose
$331
Destination

Washington
only $331
only $333