Find Cheap Flights 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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(Round-trip)
Depart: Tue Aug 29 2017 Return: Sat Sep 2 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
BWI
SJO
8h 10m
1 stop
SJO
BWI
8h 28m
1 stop
Depart: Tue Aug 29 2017 Return: Sat Sep 2 2017 Trip spans 5 days
Major Airline
Major Airline
DCA
SJO
26h 45m
1 stop
SJO
DCA
27h 35m
1 stop
Depart: Sat Nov 4 2017 Return: Fri Nov 10 2017 Trip spans 7 days
United
United
BWI
SJO
11h 36m
1 stop
SJO
BWI
8h 47m
1 stop
Depart: Wed Oct 4 2017 Return: Tue Oct 10 2017 Trip spans 7 days
American Airlines
American Airlines
BWI
SJO
12h 06m
2 stops
SJO
BWI
13h 50m
2 stops
Depart: Mon Jul 31 2017 Return: Fri Aug 4 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
BWI
SJO
27h 37m
1 stop
SJO
BWI
7h 17m
1 stop
Depart: Wed Oct 4 2017 Return: Wed Oct 11 2017 Trip spans 8 days
Copa Airlines
Copa Airlines
BOS
SJO
14h 32m
1 stop
SJO
BOS
11h 18m
1 stop
Depart: Tue Dec 5 2017 Return: Tue Dec 12 2017 Trip spans 8 days
JetBlue
JetBlue
DCA
SJO
18h 38m
1 stop
SJO
DCA
20h 43m
1 stop
Depart: Tue Jul 4 2017 Return: Tue Jul 18 2017 Trip spans 15 days
Delta
Delta
BOS
SJO
13h 50m
1 stop
SJO
BOS
16h 00m
1 stop
Depart: Wed Aug 30 2017 Return: Mon Sep 11 2017 Trip spans 13 days
Major Airline
Major Airline
DCA
SJO
26h 45m
1 stop
SJO
DCA
16h 58m
1 stop
Depart: Sat Sep 2 2017 Return: Thu Sep 7 2017 Trip spans 6 days
Spirit Airlines
Spirit Airlines
BWI
SJO
8h 10m
1 stop
SJO
BWI
8h 29m
1 stop
Depart: Sat Dec 16 2017 Return: Tue Jan 2 2018 Trip spans 18 days
Aeromexico
Aeromexico
BWI
SJO
41h 35m
2 stops
SJO
BWI
30h 05m
2 stops
Depart: Fri Nov 17 2017 Return: Sat Nov 25 2017 Trip spans 9 days
Air Canada
Air Canada
ATL
SJO
16h 15m
1 stop
SJO
ATL
30h 55m
1 stop
Depart: Fri Sep 1 2017 Return: Thu Sep 7 2017 Trip spans 7 days
Major Airline
Major Airline
BWI
SJO
6h 25m
3 stops
SJO
BWI
8h 29m
3 stops
Depart: Fri Sep 8 2017 Return: Mon Sep 11 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
DAL
SJO
32h 24m
1 stop
SJO
DAL
20h 15m
1 stop
Depart: Sun Aug 27 2017 Return: Sat Sep 2 2017 Trip spans 7 days
Spirit Airlines
Spirit Airlines
BWI
SJO
26h 43m
1 stop
SJO
BWI
8h 28m
1 stop
Depart: Thu Jul 27 2017 Return: Tue Aug 1 2017 Trip spans 6 days
American Airlines
American Airlines
BWI
SJO
25h 52m
1 stop
SJO
BWI
18h 31m
1 stop
Depart: Sun Sep 3 2017 Return: Fri Sep 22 2017 Trip spans 20 days
Major Airline
Major Airline
DCA
SJO
23h 15m
1 stop
SJO
DCA
18h 55m
1 stop
Depart: Tue Nov 14 2017 Return: Tue Nov 21 2017 Trip spans 8 days
American Airlines
American Airlines
BWI
SJO
17h 33m
2 stops
SJO
BWI
25h 17m
1 stop
Depart: Mon Sep 11 2017 Return: Sun Sep 17 2017 Trip spans 7 days
Major Airline
Major Airline
DCA
SJO
29h 20m
1 stop
SJO
DCA
20h 57m
1 stop
Depart: Sun Dec 10 2017 Return: Sun Dec 17 2017 Trip spans 8 days
American Airlines
American Airlines
BWI
SJO
30h 33m
2 stops
SJO
BWI
23h 44m
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

Baltimore
$261
Atlanta
$571
Dallas
$582
Washington
$261
Boston
$399
Destination

San Jose
$261