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: Sat Jun 10 2017 Return: Sat Jun 17 2017 Trip spans 8 days
Aeromexico
Aeromexico
SJO
7:50a
ONT
8:13p
12h 23m
2 stops
ONT
8:43p
SJO
6:10p
21h 27m
2 stops
Depart: Thu Apr 20 2017 Return: Mon Apr 24 2017 Trip spans 5 days
United
United
SJO
2:30a
ONT
5:11p
14h 41m
2 stops
ONT
5:05p
SJO
6:35a
13h 30m
2 stops
Depart: Fri Apr 7 2017 Return: Sat Apr 15 2017 Trip spans 9 days
Volaris
Volaris
SJO
8:04a
ONT
8:30p
12h 26m
1 stop
ONT
8:45p
SJO
6:19a
9h 34m
1 stop
Depart: Fri Mar 17 2017 Return: Tue Apr 4 2017 Trip spans 19 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
ONT
6:52a
42h 42m
2 stops
ONT
1:30p
SJO
10:10a
20h 40m
2 stops
Depart: Fri Aug 18 2017 Return: Sun Aug 20 2017 Trip spans 3 days
$1098
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American Airlines
American Airlines
SJO
3:54a
ONT
2:40p
10h 46m
1 stop
ONT
2:34a
SJO
12:52p
10h 18m
1 stop
Depart: Sat Apr 1 2017 Return: Wed Apr 5 2017 Trip spans 5 days
United
United
SJO
8:45a
ONT
9:06p
12h 21m
2 stops
ONT
1:50a
SJO
3:20p
13h 30m
2 stops
Depart: Wed Mar 1 2017 Return: Sun Mar 5 2017 Trip spans 5 days
United
United
SJO
2:30a
ONT
5:35p
15h 05m
2 stops
ONT
3:10p
SJO
5:40a
14h 30m
2 stops
Depart: Mon Mar 20 2017 Return: Tue Apr 4 2017 Trip spans 16 days
Alaska Airlines
Alaska Airlines
SJO
12:10p
ONT
6:52a
18h 42m
2 stops
ONT
7:45a
SJO
10:10a
26h 25m
2 stops
Depart: Thu Apr 6 2017 Return: Thu Apr 13 2017 Trip spans 8 days
Aeromexico
Aeromexico
SJO
7:50a
ONT
8:13p
12h 23m
2 stops
ONT
8:43p
SJO
5:50a
9h 07m
2 stops
Depart: Sat Mar 18 2017 Return: Tue Apr 4 2017 Trip spans 18 days
United
United
SJO
2:30a
ONT
5:27p
14h 57m
2 stops
ONT
1:50a
SJO
3:20p
13h 30m
2 stops
* 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
$710
Destination

Ontario
$710