Find Deals on Flights from Costa Rica to Ontario

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 Costa Rica to Ontario

(Round-trip)
Depart: Fri Apr 28 2017 Return: Sun Apr 30 2017 Trip spans 3 days
Volaris
Volaris
SJO
8:04a
ONT
8:30p
12h 26m
1 stop
ONT
9:16p
SJO
5:49a
8h 33m
1 stop
Depart: Wed May 3 2017 Return: Tue May 16 2017 Trip spans 14 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
ONT
7:14p
31h 04m
2 stops
ONT
4:45p
SJO
10:10a
17h 25m
2 stops
Depart: Thu Apr 6 2017 Return: Thu Apr 13 2017 Trip spans 8 days
Aeromexico
Aeromexico
SJO
2:08a
ONT
8:13p
18h 05m
2 stops
ONT
8:43p
SJO
6:10p
21h 27m
2 stops
Depart: Mon Apr 3 2017 Return: Wed Apr 12 2017 Trip spans 10 days
American Airlines
American Airlines
SJO
2:30a
ONT
12:11p
9h 41m
1 stop
ONT
4:00a
SJO
12:50p
8h 50m
1 stop
Depart: Thu Apr 27 2017 Return: Mon May 1 2017 Trip spans 5 days
United
United
SJO
2:30a
ONT
5:11p
14h 41m
2 stops
ONT
9:25a
SJO
6:35a
21h 10m
2 stops
Depart: Wed Apr 26 2017 Return: Sun Jun 25 2017 Trip spans 61 days
Volaris
Volaris
SJO
8:04a
ONT
8:30p
12h 26m
1 stop
ONT
9:16p
SJO
5:49a
8h 33m
1 stop
Depart: Sun Apr 30 2017 Return: Thu Jun 29 2017 Trip spans 61 days
Volaris
Volaris
SJO
8:04a
ONT
8:30p
12h 26m
1 stop
ONT
9:16p
SJO
5:49a
8h 33m
1 stop
Depart: Fri May 5 2017 Return: Tue May 16 2017 Trip spans 12 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
ONT
6:52a
18h 42m
2 stops
ONT
4:45p
SJO
10:10a
17h 25m
2 stops
Depart: Wed Jun 14 2017 Return: Thu Jun 29 2017 Trip spans 16 days
Volaris
Volaris
SJO
8:04a
ONT
8:36p
12h 32m
1 stop
ONT
9:16p
SJO
5:49a
8h 33m
1 stop
Depart: Mon May 1 2017 Return: Tue May 16 2017 Trip spans 16 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
ONT
7:23a
19h 13m
2 stops
ONT
4:45p
SJO
10:10a
17h 25m
2 stops
Depart: Fri Jun 30 2017 Return: Thu Jul 20 2017 Trip spans 21 days
Volaris
Volaris
SJO
8:04a
ONT
8:36p
12h 32m
1 stop
ONT
9:16p
SJO
5:49a
8h 33m
1 stop
Depart: Sun Apr 9 2017 Return: Sun Apr 16 2017 Trip spans 8 days
Aeromexico
Aeromexico
SJO
2:08a
ONT
8:13p
18h 05m
2 stops
ONT
8:43p
SJO
5:50a
33h 07m
2 stops
Depart: Sat May 6 2017 Return: Tue May 16 2017 Trip spans 11 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
ONT
6:52a
18h 42m
2 stops
ONT
4:45p
SJO
10:10a
17h 25m
2 stops
Depart: Wed Apr 12 2017 Return: Fri Apr 14 2017 Trip spans 3 days
United
United
SJO
2:30a
ONT
5:11p
14h 41m
2 stops
ONT
9:25a
SJO
9:10a
23h 45m
2 stops
Depart: Tue Apr 11 2017 Return: Fri Apr 14 2017 Trip spans 4 days
United
United
SJO
8:40a
ONT
5:11p
32h 31m
2 stops
ONT
9:25a
SJO
9:10a
23h 45m
2 stops
Depart: Mon Jun 12 2017 Return: Tue Jun 27 2017 Trip spans 16 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
ONT
7:16p
31h 06m
2 stops
ONT
1:15p
SJO
10:10a
20h 55m
2 stops
Depart: Wed Mar 29 2017 Return: Sat Apr 1 2017 Trip spans 4 days
$1142
Select
American Airlines
American Airlines
SJO
2:30a
ONT
12:11p
9h 41m
1 stop
ONT
4:25a
SJO
12:54p
8h 29m
1 stop
Depart: Sat Apr 29 2017 Return: Mon May 1 2017 Trip spans 3 days
United
United
SJO
2:30a
ONT
9:36a
31h 06m
2 stops
ONT
9:25a
SJO
6:35a
21h 10m
2 stops
Depart: Thu Mar 30 2017 Return: Sun Apr 2 2017 Trip spans 4 days
$1142
Select
American Airlines
American Airlines
SJO
2:53a
ONT
3:12p
12h 19m
1 stop
ONT
4:25a
SJO
12:54p
8h 29m
1 stop
Depart: Thu Jun 15 2017 Return: Sat Jul 1 2017 Trip spans 17 days
United
United
SJO
10:05a
ONT
9:39a
23h 34m
2 stops
ONT
1:28a
SJO
5:20p
15h 52m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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
$411
Destination

Ontario
$411