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Cheap flights from Ontario to Helena from C$ 432

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Helena departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Ontario to Helena

Cheap one-way flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:18 p.m. - 9:33 p.m.
YYZ
-
HLN
7h 15m
1 stop
C$ 432United Airlines
Thu, 9 Apr
United Airlines Logo
8:15 a.m. - 9:33 p.m.
YYZ
-
HLN
15h 18m
2 stops
C$ 605United Airlines
Sun, 12 Apr
United Airlines Logo
7:00 a.m. - 9:33 p.m.
YYZ
-
HLN
16h 33m
3 stops
C$ 978United Airlines
Sun, 12 Apr

Delta flights from Region of Ontario to Helena

Our best Delta deals on Region of Ontario to Helena flight tickets
Delta
28 Feb
YYZ6:00 a.m.Toronto Pearson Intl
18h 27m
2 stops
HLN10:27 p.m.Helena
4 Mar
HLN1:10 p.m.Helena
26h 08m
2 stops
YYZ5:18 p.m.Toronto Pearson Intl
C$ 1,130
Delta
28 Feb
YYZ6:11 p.m.Toronto Pearson Intl
20h 14m
2 stops
HLN12:25 p.m.Helena
4 Mar
HLN5:30 a.m.Helena
15h 41m
2 stops
YYZ11:11 p.m.Toronto Pearson Intl
C$ 1,148
Delta
28 Feb
YYZ6:11 p.m.Toronto Pearson Intl
20h 14m
2 stops
HLN12:25 p.m.Helena
4 Mar
HLN5:30 a.m.Helena
15h 24m
2 stops
YYZ10:54 p.m.Toronto Pearson Intl
C$ 1,149

United Airlines flights from Region of Ontario to Helena

Our best United Airlines deals on Region of Ontario to Helena flight tickets
United Airlines
28 Feb
YYZ2:50 p.m.Toronto Pearson Intl
8h 26m
1 stop
HLN9:16 p.m.Helena
4 Mar
HLN6:15 a.m.Helena
10h 20m
1 stop
YYZ6:35 p.m.Toronto Pearson Intl
C$ 1,216
United Airlines
28 Feb
YYZ8:45 a.m.Toronto Pearson Intl
14h 31m
2 stops
HLN9:16 p.m.Helena
4 Mar
HLN2:25 p.m.Helena
6h 16m
1 stop
YYZ10:41 p.m.Toronto Pearson Intl
C$ 1,217
United Airlines
28 Feb
YYZ4:10 p.m.Toronto Pearson Intl
7h 06m
1 stop
HLN9:16 p.m.Helena
4 Mar
HLN2:25 p.m.Helena
18h 08m
2 stops
YYZ10:33 a.m.Toronto Pearson Intl
C$ 1,347

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 27 February 2026.
Use the filters below to find and compare flights from Ontario to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Thu 9/4

4:18 p.m.-9:33 p.m.

1 stop7h 15m

C$ 432

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Sun 12/4

8:15 a.m.-9:33 p.m.

2 stops15h 18m

C$ 605

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Sun 12/4

7:00 a.m.-9:33 p.m.

3 stops16h 33m

C$ 978

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Helena from

How to get the cheapest flight ticket from Region of Ontario to Helena

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Helena?

United Airlines is the most popular carrier operating from Ontario to Helena

Cheap Region of Ontario to Helena flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Helena

Fastest flight time

20h 14m

Direct flights

None
The fastest flight from Region of Ontario to Helena takes 20h 14m
There are no direct flights from Region of Ontario to Helena. There are no popular flight routes from Region of Ontario to Helena.
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  • When did momondo last update prices for flights from Ontario to Helena Airport?

    Prices for flights from Ontario to Helena Airport are updated daily.

  • How old do you have to be to fly from Ontario to Helena Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Helena Airport.

  • What documentation or ID do you need to fly to Helena Airport?

    The necessary travel and health documents for your Helena Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Helena?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Helena from Ontario.

Can I find flights from Ontario to Helena with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Helena flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Helena?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Helena from Ontario.

I’m not ready to book a flight from Ontario to Helena right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Helena now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Helena and let you know when they change.

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