Find Cheap Flights from Ontario 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 Ontario to Costa Rica

(Round-trip)
Depart: Sat May 27 2017 Return: Fri Jun 9 2017 Trip spans 14 days
Volaris
Volaris
ONT
9:30p
SJO
5:49a
8h 19m
1 stop
SJO
8:04a
ONT
8:30p
12h 26m
1 stop
Depart: Mon Aug 14 2017 Return: Mon Aug 28 2017 Trip spans 15 days
American Airlines
American Airlines
ONT
8:45a
LIR
6:57a
22h 12m
2 stops
LIR
8:44a
ONT
12:11p
27h 27m
2 stops
Depart: Mon Jul 3 2017 Return: Mon Jul 10 2017 Trip spans 8 days
Aeromexico
Aeromexico
ONT
8:32p
SJO
6:17p
21h 45m
2 stops
SJO
2:08a
ONT
8:02p
17h 54m
2 stops
Depart: Sat Aug 19 2017 Return: Sun Aug 27 2017 Trip spans 9 days
Hahn Air Systems
Hahn Air Systems
ONT
9:16p
SJO
5:49a
8h 33m
1 stop
SJO
8:04a
ONT
8:36p
12h 32m
1 stop
Depart: Fri Sep 22 2017 Return: Mon Oct 2 2017 Trip spans 11 days
United
United
ONT
2:00a
LIR
6:30a
28h 30m
2 stops
LIR
8:30a
ONT
9:38a
25h 08m
2 stops
Depart: Wed Sep 27 2017 Return: Tue Oct 3 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
ONT
4:25p
LIR
10:20a
17h 55m
2 stops
LIR
12:20p
ONT
7:47a
19h 27m
2 stops
Depart: Thu Aug 17 2017 Return: Fri Aug 25 2017 Trip spans 9 days
Major Airline
Major Airline
ONT
1:00a
LIR
5:11a
4h 11m
2 stops
LIR
1:00a
ONT
7:11a
6h 11m
2 stops
Depart: Sun Jun 25 2017 Return: Mon Jun 26 2017 Trip spans 2 days
Volaris
Volaris
ONT
9:20p
SJO
5:49a
8h 29m
1 stop
SJO
8:04a
ONT
8:30p
12h 26m
1 stop
Depart: Tue Aug 15 2017 Return: Mon Aug 28 2017 Trip spans 14 days
American Airlines
American Airlines
ONT
10:16a
LIR
9:03a
22h 47m
2 stops
LIR
8:44a
ONT
8:46a
24h 02m
2 stops
Depart: Mon Jul 17 2017 Return: Thu Jul 20 2017 Trip spans 4 days
Aeromexico
Aeromexico
ONT
8:32p
SJO
6:17p
21h 45m
2 stops
SJO
7:50a
ONT
8:02p
36h 12m
2 stops
Depart: Thu Aug 24 2017 Return: Mon Sep 4 2017 Trip spans 12 days
Hahn Air Systems
Hahn Air Systems
ONT
9:16p
SJO
5:49a
8h 33m
1 stop
SJO
8:04a
ONT
8:36p
12h 32m
1 stop
Depart: Sun May 28 2017 Return: Fri Jun 9 2017 Trip spans 13 days
Volaris
Volaris
ONT
9:30p
SJO
5:49a
8h 19m
1 stop
SJO
8:04a
ONT
8:30p
12h 26m
1 stop
Depart: Wed Aug 16 2017 Return: Mon Aug 28 2017 Trip spans 13 days
American Airlines
American Airlines
ONT
9:10p
LIR
9:03a
11h 53m
2 stops
LIR
8:44a
ONT
3:28p
30h 44m
2 stops
Depart: Mon Aug 7 2017 Return: Mon Aug 14 2017 Trip spans 8 days
Aeromexico
Aeromexico
ONT
8:32p
SJO
5:50a
33h 18m
2 stops
SJO
2:08a
ONT
8:02p
17h 54m
2 stops
Depart: Tue Oct 3 2017 Return: Sun Oct 8 2017 Trip spans 6 days
Hahn Air Systems
Hahn Air Systems
ONT
9:16p
SJO
5:49a
8h 33m
1 stop
SJO
8:04a
ONT
8:36p
12h 32m
1 stop
Depart: Tue May 30 2017 Return: Fri Jun 9 2017 Trip spans 11 days
Volaris
Volaris
ONT
9:30p
SJO
5:49a
8h 19m
1 stop
SJO
8:04a
ONT
8:30p
12h 26m
1 stop
Depart: Sun Aug 20 2017 Return: Mon Aug 28 2017 Trip spans 9 days
American Airlines
American Airlines
ONT
12:25p
LIR
9:03a
20h 38m
2 stops
LIR
8:44a
ONT
8:46a
24h 02m
2 stops
Depart: Thu Aug 10 2017 Return: Mon Aug 21 2017 Trip spans 12 days
Aeromexico
Aeromexico
ONT
8:32p
SJO
6:17p
21h 45m
2 stops
SJO
2:08a
ONT
8:02p
17h 54m
2 stops
Depart: Tue Sep 5 2017 Return: Mon Sep 11 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
ONT
4:25p
SJO
10:14a
17h 49m
2 stops
SJO
12:15p
ONT
7:45a
19h 30m
2 stops
Depart: Tue Aug 29 2017 Return: Sun Sep 3 2017 Trip spans 6 days
Hahn Air Systems
Hahn Air Systems
ONT
9:16p
SJO
5:49a
8h 33m
1 stop
SJO
8:04a
ONT
8:36p
12h 32m
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

Ontario
$464
Destination

Liberia
$565
San Jose
$464