Find Cheap Flights from Grand Rapids Gerald R. Ford Intl to Ontario (GRR - ONT)

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Grand Rapids Gerald R. Ford Intl to Ontario

(Round-trip)
Depart: Tue Oct 10 2017 Return: Wed Oct 11 2017 Trip spans 2 days
American Airlines
American Airlines
GRR
3:40p
ONT
10:10p
6h 30m
1 stop
ONT
10:20a
GRR
4:54p
6h 34m
1 stop
Depart: Wed Aug 16 2017 Return: Fri Aug 25 2017 Trip spans 10 days
United
United
GRR
2:00a
ONT
6:44p
16h 44m
2 stops
ONT
9:25a
GRR
5:01p
7h 36m
2 stops
Depart: Fri Sep 29 2017 Return: Mon Oct 2 2017 Trip spans 4 days
Delta
Delta
GRR
11:30a
ONT
10:12p
10h 42m
2 stops
ONT
2:25p
GRR
3:34a
13h 09m
2 stops
Depart: Wed Sep 20 2017 Return: Wed Sep 27 2017 Trip spans 8 days
American Airlines
American Airlines
GRR
2:10a
ONT
9:03a
6h 53m
1 stop
ONT
10:14a
GRR
4:54p
6h 40m
1 stop
Depart: Sat Aug 19 2017 Return: Fri Aug 25 2017 Trip spans 7 days
United
United
GRR
2:00a
ONT
6:44p
16h 44m
2 stops
ONT
9:25a
GRR
5:01p
7h 36m
2 stops
Depart: Fri Oct 6 2017 Return: Tue Oct 10 2017 Trip spans 5 days
American Airlines
American Airlines
GRR
3:40p
ONT
10:10p
6h 30m
1 stop
ONT
10:20a
GRR
4:54p
6h 34m
1 stop
Depart: Tue Aug 22 2017 Return: Fri Aug 25 2017 Trip spans 4 days
United
United
GRR
2:00a
ONT
6:44p
16h 44m
2 stops
ONT
9:25a
GRR
5:01p
7h 36m
2 stops
Depart: Wed Oct 11 2017 Return: Sat Oct 14 2017 Trip spans 4 days
American Airlines
American Airlines
GRR
3:40p
ONT
10:10p
6h 30m
1 stop
ONT
10:20a
GRR
4:54p
6h 34m
1 stop
Depart: Wed Sep 6 2017 Return: Mon Sep 11 2017 Trip spans 6 days
United
United
GRR
2:33p
ONT
11:26p
8h 53m
2 stops
ONT
5:40p
GRR
2:28a
8h 48m
2 stops
Depart: Fri Aug 18 2017 Return: Mon Aug 28 2017 Trip spans 11 days
American Airlines
American Airlines
GRR
2:10a
ONT
8:59a
6h 49m
1 stop
ONT
3:35p
GRR
3:26a
11h 51m
2 stops
Depart: Wed Nov 15 2017 Return: Wed Nov 29 2017 Trip spans 15 days
United
United
GRR
11:40a
ONT
6:00p
6h 20m
1 stop
ONT
1:00a
GRR
6:29a
5h 29m
1 stop
Depart: Thu Aug 17 2017 Return: Wed Aug 23 2017 Trip spans 7 days
American Airlines
American Airlines
GRR
4:58p
ONT
9:47p
28h 49m
1 stop
ONT
3:35p
GRR
3:26a
11h 51m
2 stops
Depart: Tue Aug 15 2017 Return: Thu Aug 17 2017 Trip spans 3 days
United
United
GRR
1:45a
ONT
3:20p
13h 35m
2 stops
ONT
5:15a
GRR
5:01p
11h 46m
2 stops
Depart: Mon Aug 21 2017 Return: Sat Aug 26 2017 Trip spans 6 days
American Airlines
American Airlines
GRR
4:58p
ONT
9:03a
16h 05m
2 stops
ONT
8:45a
GRR
5:03a
20h 18m
2 stops
Depart: Tue Nov 14 2017 Return: Tue Nov 28 2017 Trip spans 15 days
United
United
GRR
11:40a
ONT
6:00p
6h 20m
1 stop
ONT
2:15p
GRR
7:43a
17h 28m
2 stops
Depart: Mon Oct 9 2017 Return: Fri Oct 13 2017 Trip spans 5 days
American Airlines
American Airlines
GRR
5:03p
ONT
8:05a
15h 02m
2 stops
ONT
9:10p
GRR
4:46p
19h 36m
2 stops
Depart: Sat Oct 7 2017 Return: Fri Oct 13 2017 Trip spans 7 days
United
United
GRR
2:29p
ONT
11:26p
8h 57m
2 stops
ONT
4:45p
GRR
2:28a
9h 43m
2 stops
Depart: Fri Sep 8 2017 Return: Mon Sep 11 2017 Trip spans 4 days
American Airlines
American Airlines
GRR
2:10a
ONT
9:03a
6h 53m
1 stop
ONT
10:14a
GRR
4:54p
6h 40m
1 stop
Depart: Thu Oct 12 2017 Return: Fri Oct 13 2017 Trip spans 2 days
American Airlines
American Airlines
GRR
5:03p
ONT
8:05a
15h 02m
2 stops
ONT
3:35p
GRR
3:26a
11h 51m
2 stops
Depart: Tue Sep 5 2017 Return: Mon Sep 11 2017 Trip spans 7 days
United
United
GRR
1:00p
ONT
7:50p
6h 50m
1 stop
ONT
5:40p
GRR
2:28a
8h 48m
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

Grand Rapids
$350
Destination

Ontario
$350