Find Cheap Flights to Helena

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: Fri Oct 27 2017 Return: Mon Oct 30 2017 Trip spans 4 days
United
United
ONT
9:20a
HLN
3:54p
6h 34m
1 stop
HLN
3:05a
ONT
9:33a
6h 28m
1 stop
Depart: Mon Sep 11 2017 Return: Tue Sep 12 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
ONT
2:05a
HLN
10:24a
8h 19m
1 stop
HLN
11:59a
ONT
1:22p
25h 23m
1 stop
Depart: Fri Sep 22 2017 Return: Sun Oct 1 2017 Trip spans 10 days
Delta
Delta
ONT
2:00a
HLN
7:34a
5h 34m
1 stop
HLN
1:55p
ONT
7:54p
5h 59m
1 stop
Depart: Thu Oct 12 2017 Return: Mon Oct 16 2017 Trip spans 5 days
United
United
ONT
9:35a
HLN
3:49p
6h 14m
1 stop
HLN
3:15a
ONT
9:35a
6h 20m
1 stop
Depart: Fri Oct 13 2017 Return: Tue Oct 17 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
ONT
2:05a
HLN
10:22a
8h 17m
1 stop
HLN
11:57a
ONT
8:37p
8h 40m
1 stop
Depart: Sat Oct 14 2017 Return: Tue Oct 17 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
ONT
2:05a
HLN
10:22a
8h 17m
1 stop
HLN
11:57a
ONT
8:37p
8h 40m
1 stop
Depart: Fri Dec 8 2017 Return: Fri Jan 5 2018 Trip spans 29 days
Delta
Delta
ONT
5:20a
HLN
11:19a
5h 59m
1 stop
HLN
12:52p
ONT
6:46p
5h 54m
1 stop
Depart: Fri Nov 10 2017 Return: Mon Nov 13 2017 Trip spans 4 days
United
United
ONT
8:20a
HLN
2:55p
6h 35m
1 stop
HLN
2:05a
ONT
8:36a
6h 31m
1 stop
Depart: Sun Oct 1 2017 Return: Sun Oct 8 2017 Trip spans 8 days
Delta
Delta
ONT
2:00a
HLN
7:37a
5h 37m
1 stop
HLN
1:55p
ONT
7:54p
5h 59m
1 stop
Depart: Wed Sep 6 2017 Return: Tue Sep 12 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
ONT
2:05a
HLN
10:24a
8h 19m
1 stop
HLN
11:59a
ONT
8:41p
8h 42m
1 stop
Depart: Wed Oct 4 2017 Return: Sun Oct 8 2017 Trip spans 5 days
$1121
Select
American Airlines
American Airlines
ONT
12:25p
HLN
10:22a
21h 57m
2 stops
HLN
11:57a
ONT
8:43a
20h 46m
2 stops
Depart: Thu Sep 7 2017 Return: Tue Sep 12 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
ONT
2:05a
HLN
10:24a
8h 19m
1 stop
HLN
11:59a
ONT
8:41p
8h 42m
1 stop
Depart: Fri Sep 8 2017 Return: Tue Sep 12 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
ONT
2:05a
HLN
10:24a
8h 19m
1 stop
HLN
11:59a
ONT
7:01a
19h 02m
1 stop
Depart: Tue Sep 5 2017 Return: Sun Sep 10 2017 Trip spans 6 days
Delta
Delta
ONT
1:00p
HLN
4:49p
3h 49m
1 stop
HLN
2:01p
ONT
8:12p
6h 11m
1 stop
Depart: Fri Sep 1 2017 Return: Thu Sep 7 2017 Trip spans 7 days
United
United
ONT
9:25a
HLN
3:56p
6h 31m
1 stop
HLN
3:15a
ONT
9:50a
6h 35m
1 stop
Depart: Sat Sep 9 2017 Return: Tue Sep 12 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
ONT
2:05a
HLN
10:24a
8h 19m
1 stop
HLN
11:59a
ONT
7:01a
19h 02m
1 stop
Depart: Sat Sep 2 2017 Return: Thu Sep 7 2017 Trip spans 6 days
Delta
Delta
ONT
2:00a
HLN
7:33a
5h 33m
1 stop
HLN
2:30a
ONT
6:39a
4h 09m
1 stop
Depart: Sun Sep 10 2017 Return: Tue Sep 12 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
ONT
1:15p
HLN
10:24a
21h 09m
1 stop
HLN
11:59a
ONT
7:01a
19h 02m
1 stop
Depart: Thu Nov 23 2017 Return: Sat Nov 25 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
ONT
1:00a
HLN
9:00a
8h 00m
1 stop
HLN
10:48a
ONT
7:52p
9h 04m
1 stop
Depart: Tue Nov 21 2017 Return: Sat Nov 25 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
ONT
1:00a
HLN
9:00a
8h 00m
1 stop
HLN
10:48a
ONT
7:52p
9h 04m
1 stop
* 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.

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Airports
Origin

Ontario
$326
Destination

Helena
$326