Find Deals on Flights from Lambert-St Louis 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
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 Lambert-St Louis to Costa Rica

(Round-trip)
Depart: Sun Feb 12 2017 Return: Mon Feb 13 2017 Trip spans 2 days
United
United
STL
6:34a
LIR
4:05p
9h 31m
1 stop
LIR
2:50a
STL
12:37p
9h 47m
1 stop
Depart: Wed Jan 18 2017 Return: Wed Jan 25 2017 Trip spans 8 days
American Airlines
American Airlines
STL
2:19a
SJO
9:51a
7h 32m
1 stop
SJO
10:49a
STL
3:45a
16h 56m
1 stop
Depart: Mon Mar 20 2017 Return: Tue Mar 21 2017 Trip spans 2 days
Major Airline
Major Airline
STL
12:15a
SJO
2:35p
14h 20m
1 stop
SJO
12:31a
STL
5:54a
29h 23m
1 stop
Depart: Fri Jan 20 2017 Return: Fri Jan 27 2017 Trip spans 8 days
Delta
Delta
STL
6:26a
LIR
4:01p
9h 35m
1 stop
LIR
3:00a
STL
11:11a
8h 11m
1 stop
Depart: Fri Mar 17 2017 Return: Tue Mar 28 2017 Trip spans 12 days
Air Canada
Air Canada
STL
5:50a
SJO
5:15p
11h 25m
1 stop
SJO
4:15a
STL
4:18a
24h 03m
1 stop
Depart: Thu Jan 19 2017 Return: Thu Jan 26 2017 Trip spans 8 days
American Airlines
American Airlines
STL
1:00a
SJO
9:51a
8h 51m
1 stop
SJO
10:49a
STL
3:45a
16h 56m
1 stop
Depart: Sat Jan 14 2017 Return: Tue Jan 17 2017 Trip spans 4 days
United
United
STL
6:34a
LIR
4:05p
9h 31m
1 stop
LIR
2:50a
STL
12:37p
9h 47m
1 stop
Depart: Mon Feb 6 2017 Return: Mon Feb 13 2017 Trip spans 8 days
Delta
Delta
STL
4:43a
LIR
4:01p
11h 18m
1 stop
LIR
3:00a
STL
6:21p
15h 21m
1 stop
Depart: Tue Jan 17 2017 Return: Tue Jan 24 2017 Trip spans 8 days
Major Airline
Major Airline
STL
11:50p
SJO
11:15a
11h 25m
1 stop
SJO
9:30p
STL
7:37a
10h 07m
1 stop
Depart: Wed Jan 11 2017 Return: Wed Jan 18 2017 Trip spans 8 days
American Airlines
American Airlines
STL
1:20a
SJO
9:25a
8h 05m
1 stop
SJO
10:49a
STL
3:45a
16h 56m
1 stop
Depart: Thu Feb 9 2017 Return: Mon Feb 13 2017 Trip spans 5 days
Delta
Delta
STL
4:43a
LIR
4:01p
11h 18m
1 stop
LIR
3:00a
STL
3:40p
12h 40m
1 stop
Depart: Sun Mar 5 2017 Return: Fri Mar 10 2017 Trip spans 6 days
United
United
STL
12:59p
SJO
6:40a
17h 41m
1 stop
SJO
6:45p
STL
10:57a
16h 12m
1 stop
Depart: Tue Feb 7 2017 Return: Mon Feb 13 2017 Trip spans 7 days
American Airlines
American Airlines
STL
1:20a
SJO
8:23a
7h 03m
1 stop
SJO
8:39a
STL
4:32p
7h 53m
1 stop
Depart: Fri Feb 10 2017 Return: Mon Feb 13 2017 Trip spans 4 days
Delta
Delta
STL
6:26a
LIR
4:01p
9h 35m
1 stop
LIR
3:00a
STL
3:40p
12h 40m
1 stop
Depart: Tue Feb 14 2017 Return: Wed Feb 22 2017 Trip spans 9 days
American Airlines
American Airlines
STL
1:20a
SJO
8:23a
7h 03m
1 stop
SJO
10:49a
STL
3:45a
16h 56m
1 stop
Depart: Thu Dec 29 2016 Return: Tue Jan 10 2017 Trip spans 13 days
United
United
STL
4:30a
LIR
4:05p
11h 35m
1 stop
LIR
2:50a
STL
12:37p
9h 47m
1 stop
Depart: Sat Feb 11 2017 Return: Mon Feb 13 2017 Trip spans 3 days
Delta
Delta
STL
6:30a
LIR
4:01p
9h 31m
1 stop
LIR
3:00a
STL
6:21p
15h 21m
1 stop
Depart: Wed Feb 15 2017 Return: Wed Feb 22 2017 Trip spans 8 days
American Airlines
American Airlines
STL
1:20a
SJO
9:25a
8h 05m
1 stop
SJO
10:49a
STL
6:25p
7h 36m
1 stop
Depart: Mon Jan 2 2017 Return: Tue Jan 10 2017 Trip spans 9 days
United
United
STL
1:00a
LIR
4:05p
15h 05m
1 stop
LIR
2:50a
STL
4:12p
13h 22m
1 stop
Depart: Thu Mar 23 2017 Return: Wed Apr 12 2017 Trip spans 21 days
Delta
Delta
STL
1:45a
SJO
10:04a
8h 19m
1 stop
SJO
10:09a
STL
5:38p
7h 29m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.

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Airports
Origin

St. Louis
$440
Destination

Liberia
$440
San Jose
$443