Find Cheap 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: Fri Dec 1 2017 Return: Fri Dec 8 2017 Trip spans 8 days
Delta
Delta
ONT
12:00a
HLN
5:56a
5h 56m
1 stop
HLN
12:00a
ONT
6:19a
6h 19m
1 stop
Depart: Mon Dec 18 2017 Return: Sat Dec 23 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
ONT
12:00a
HLN
8:04a
8h 04m
1 stop
HLN
12:00a
ONT
6:41p
18h 41m
1 stop
Depart: Fri Nov 24 2017 Return: Tue Nov 28 2017 Trip spans 5 days
Delta
Delta
ONT
12:00a
HLN
5:51a
5h 51m
1 stop
HLN
12:00a
ONT
4:30a
4h 30m
1 stop
Depart: Fri Feb 16 2018 Return: Mon Feb 19 2018 Trip spans 4 days
Alaska Airlines
Alaska Airlines
ONT
12:00a
HLN
3:49a
27h 49m
1 stop
HLN
12:00a
ONT
2:48a
26h 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.

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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
$258
Destination

Helena
$258