Find Cheap Flights from Helena to Ontario (HLN - 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 Helena to Ontario

(Round-trip)
Depart: Sat Aug 26 2017 Return: Sun Aug 27 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
HLN
11:49a
ONT
7:18p
7h 29m
1 stop
ONT
2:05a
HLN
10:16a
8h 11m
1 stop
Depart: Fri Aug 25 2017 Return: Sat Aug 26 2017 Trip spans 2 days
United
United
HLN
3:15a
ONT
4:29a
25h 14m
2 stops
ONT
5:40p
HLN
3:56p
22h 16m
2 stops
Depart: Thu Aug 31 2017 Return: Tue Sep 5 2017 Trip spans 6 days
Delta
Delta
HLN
2:01p
ONT
8:07p
6h 06m
1 stop
ONT
2:00a
HLN
7:34a
5h 34m
1 stop
Depart: Mon Sep 18 2017 Return: Tue Sep 26 2017 Trip spans 9 days
United
United
HLN
3:15a
ONT
5:44a
26h 29m
2 stops
ONT
4:45p
HLN
3:56p
23h 11m
2 stops
Depart: Tue Sep 19 2017 Return: Tue Sep 26 2017 Trip spans 8 days
United
United
HLN
3:15a
ONT
7:04a
27h 49m
2 stops
ONT
5:40p
HLN
3:56p
22h 16m
2 stops
Depart: Wed Aug 23 2017 Return: Sun Aug 27 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
HLN
11:49a
ONT
7:18p
7h 29m
1 stop
ONT
2:05a
HLN
10:16a
8h 11m
1 stop
Depart: Wed Sep 20 2017 Return: Tue Sep 26 2017 Trip spans 7 days
United
United
HLN
3:15a
ONT
9:26p
18h 11m
2 stops
ONT
4:45p
HLN
3:56p
23h 11m
2 stops
Depart: Thu Sep 21 2017 Return: Tue Sep 26 2017 Trip spans 6 days
United
United
HLN
3:15a
ONT
4:29a
25h 14m
2 stops
ONT
3:35p
HLN
3:56p
24h 21m
2 stops
Depart: Sun Oct 1 2017 Return: Tue Oct 17 2017 Trip spans 17 days
Delta
Delta
HLN
1:54p
ONT
7:44p
5h 50m
1 stop
ONT
2:25p
HLN
6:25p
4h 00m
1 stop
Depart: Fri Aug 18 2017 Return: Sat Aug 26 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
HLN
11:49a
ONT
7:18p
7h 29m
1 stop
ONT
2:20a
HLN
10:14a
7h 54m
1 stop
Depart: Fri Sep 22 2017 Return: Tue Sep 26 2017 Trip spans 5 days
United
United
HLN
3:15a
ONT
5:44a
26h 29m
2 stops
ONT
4:45p
HLN
3:56p
23h 11m
2 stops
Depart: Thu Dec 28 2017 Return: Wed Jan 3 2018 Trip spans 7 days
Delta
Delta
HLN
12:55p
ONT
6:44p
5h 49m
1 stop
ONT
1:00a
HLN
6:30a
5h 30m
1 stop
Depart: Mon Sep 11 2017 Return: Thu Sep 14 2017 Trip spans 4 days
United
United
HLN
3:15a
ONT
7:04a
27h 49m
2 stops
ONT
9:35a
HLN
3:56p
6h 21m
1 stop
Depart: Wed Aug 2 2017 Return: Mon Aug 7 2017 Trip spans 6 days
Delta
Delta
HLN
2:15p
ONT
8:06p
5h 51m
1 stop
ONT
2:47p
HLN
6:34p
3h 47m
1 stop
Depart: Wed Sep 13 2017 Return: Thu Sep 14 2017 Trip spans 2 days
United
United
HLN
3:15a
ONT
9:26p
18h 11m
2 stops
ONT
9:35a
HLN
3:56p
6h 21m
1 stop
Depart: Fri Oct 13 2017 Return: Mon Oct 16 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
HLN
11:57a
ONT
8:37p
8h 40m
1 stop
ONT
2:05a
HLN
10:22a
8h 17m
1 stop
Depart: Thu Sep 14 2017 Return: Sat Sep 16 2017 Trip spans 3 days
United
United
HLN
3:15a
ONT
4:29a
25h 14m
2 stops
ONT
4:45p
HLN
3:56p
23h 11m
2 stops
Depart: Wed Dec 27 2017 Return: Wed Jan 3 2018 Trip spans 8 days
Delta
Delta
HLN
1:35a
ONT
5:40a
4h 05m
1 stop
ONT
1:00a
HLN
6:30a
5h 30m
1 stop
Depart: Tue Aug 1 2017 Return: Mon Aug 7 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
HLN
11:49a
ONT
7:18p
7h 29m
1 stop
ONT
2:20a
HLN
10:14a
7h 54m
1 stop
Depart: Fri Sep 15 2017 Return: Sat Sep 16 2017 Trip spans 2 days
United
United
HLN
3:15a
ONT
5:44a
26h 29m
2 stops
ONT
5:40p
HLN
3:56p
22h 16m
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

Helena
$324
Destination

Ontario
$324