Find Deals on Flights from Ontario to Helena (ONT - HLN)

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 Helena

(Round-trip)
Depart: Tue Apr 18 2017 Return: Sat Apr 22 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:14p
7h 28m
1 stop
Depart: Sat Apr 8 2017 Return: Wed Apr 12 2017 Trip spans 5 days
Delta
Delta
ONT
2:00a
HLN
7:34a
5h 34m
1 stop
HLN
1:59p
ONT
7:49p
5h 50m
1 stop
Depart: Wed Apr 19 2017 Return: Sat Apr 22 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:14p
7h 28m
1 stop
Depart: Thu Apr 20 2017 Return: Sat Apr 22 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:14p
7h 28m
1 stop
Depart: Fri Apr 21 2017 Return: Sat Apr 22 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:14p
7h 28m
1 stop
Depart: Sat Apr 22 2017 Return: Mon Apr 24 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:38p
7h 52m
1 stop
Depart: Thu Mar 9 2017 Return: Tue Mar 14 2017 Trip spans 5 days
Delta
Delta
ONT
1:00a
HLN
6:41a
5h 41m
1 stop
HLN
1:54p
ONT
7:51p
5h 57m
1 stop
Depart: Sun Apr 23 2017 Return: Mon Apr 24 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:38p
7h 52m
1 stop
Depart: Fri Mar 10 2017 Return: Tue Mar 14 2017 Trip spans 4 days
Delta
Delta
ONT
1:00a
HLN
6:41a
5h 41m
1 stop
HLN
1:54p
ONT
7:51p
5h 57m
1 stop
Depart: Mon Apr 24 2017 Return: Tue Apr 25 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:14p
7h 28m
1 stop
Depart: Tue May 9 2017 Return: Sat May 13 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:15p
7h 29m
1 stop
Depart: Wed May 10 2017 Return: Sat May 13 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:15p
7h 29m
1 stop
Depart: Sat Mar 11 2017 Return: Tue Mar 14 2017 Trip spans 3 days
Delta
Delta
ONT
1:00a
HLN
6:41a
5h 41m
1 stop
HLN
1:54p
ONT
7:51p
5h 57m
1 stop
Depart: Sun May 14 2017 Return: Tue May 16 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:15p
7h 29m
1 stop
Depart: Thu Jun 1 2017 Return: Wed Jun 7 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:47a
ONT
7:16p
7h 29m
1 stop
Depart: Mon May 15 2017 Return: Tue May 16 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:15p
7h 29m
1 stop
Depart: Tue May 30 2017 Return: Wed Jun 7 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:47a
ONT
7:16p
7h 29m
1 stop
Depart: Sun Jun 25 2017 Return: Tue Jun 27 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:47a
ONT
7:16p
7h 29m
1 stop
Depart: Thu May 11 2017 Return: Sat May 13 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
HLN
10:11a
7h 51m
1 stop
HLN
11:46a
ONT
7:15p
7h 29m
1 stop
Depart: Sun Feb 26 2017 Return: Thu Mar 2 2017 Trip spans 5 days
Delta
Delta
ONT
5:36a
HLN
11:15a
5h 39m
1 stop
HLN
12:40p
ONT
7:10p
6h 30m
1 stop
* 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.

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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

Ontario
$244
Destination

Helena
$244