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Cheap flights from Ontario to Helena from C$ 899

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Helena departing on 8/12. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Helena

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:10 p.m. - 12:24 p.m.
YYZ
-
HLN
20h 14m
2 stops
Delta Logo
12:50 p.m. - 1:09 p.m.
HLN
-
YYZ
22h 19m
2 stops
C$ 899Delta
Tue, 8 Dec - Sat, 12 Dec
United Airlines Logo
9:30 a.m. - 8:59 p.m.
YYZ
-
HLN
13h 29m
2 stops
United Airlines Logo
7:00 a.m. - 3:12 p.m.
HLN
-
YYZ
6h 12m
1 stop
C$ 940United Airlines
Tue, 8 Dec - Sat, 12 Dec
United Airlines Logo
7:30 a.m. - 9:30 p.m.
YYZ
-
HLN
16h 00m
2 stops
United Airlines Logo
6:15 a.m. - 11:54 p.m.
HLN
-
YYZ
15h 39m
2 stops
C$ 950United Airlines
Tue, 25 Aug - Fri, 28 Aug
United Airlines Logo
10:45 a.m. - 9:30 p.m.
YYZ
-
HLN
12h 45m
1 stop
United Airlines Logo
6:15 a.m. - 3:16 p.m.
HLN
-
YYZ
7h 01m
1 stop
C$ 954United Airlines
Tue, 25 Aug - Fri, 28 Aug
United Airlines Logo
12:45 p.m. - 9:18 p.m.
YYZ
-
HLN
10h 33m
2 stops
United Airlines Logo
6:25 a.m. - 3:14 p.m.
HLN
-
YYZ
6h 49m
1 stop
C$ 981United Airlines
Mon, 5 Oct - Sun, 11 Oct
United Airlines Logo
6:10 a.m. - 9:20 p.m.
YYZ
-
HLN
17h 10m
2 stops
United Airlines Logo
2:20 p.m. - 9:54 a.m.
HLN
-
YYZ
17h 34m
2 stops
C$ 1,118United Airlines
Mon, 27 Jul - Fri, 31 Jul
United Airlines Logo
4:18 p.m. - 9:20 p.m.
YYZ
-
HLN
7h 02m
1 stop
United Airlines Logo
6:15 a.m. - 11:17 p.m.
HLN
-
YYZ
15h 02m
1 stop
C$ 1,181United Airlines
Mon, 27 Jul - Fri, 31 Jul

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United Airlines flights from Region of Ontario to Helena

Our best United Airlines deals on Region of Ontario to Helena flight tickets
United Airlines
8 Dec
YYZ9:30 a.m.Toronto Pearson Intl
13h 29m
2 stops
HLN8:59 p.m.Helena
12 Dec
HLN7:00 a.m.Helena
6h 12m
1 stop
YYZ3:12 p.m.Toronto Pearson Intl
C$ 940
United Airlines
25 Aug
YYZ7:30 a.m.Toronto Pearson Intl
16h 00m
2 stops
HLN9:30 p.m.Helena
28 Aug
HLN6:15 a.m.Helena
15h 39m
2 stops
YYZ11:54 p.m.Toronto Pearson Intl
C$ 950
United Airlines
25 Aug
YYZ10:45 a.m.Toronto Pearson Intl
12h 45m
1 stop
HLN9:30 p.m.Helena
28 Aug
HLN6:15 a.m.Helena
7h 01m
1 stop
YYZ3:16 p.m.Toronto Pearson Intl
C$ 954

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 15 July 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

Cheapest round-trip

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Tue 8/12

6:10 p.m.-12:24 p.m.

2 stops20h 14m

Helena

Sat 12/12

12:50 p.m.-1:09 p.m.

2 stops22h 19m

C$ 899

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Tue 8/12

9:30 a.m.-8:59 p.m.

2 stops13h 29m

Helena

Sat 12/12

7:00 a.m.-3:12 p.m.

1 stop6h 12m

C$ 940

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Tue 25/8

7:30 a.m.-9:30 p.m.

2 stops16h 00m

Helena

Fri 28/8

6:15 a.m.-11:54 p.m.

2 stops15h 39m

C$ 950

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Tue 25/8

10:45 a.m.-9:30 p.m.

1 stop12h 45m

Helena

Fri 28/8

6:15 a.m.-3:16 p.m.

1 stop7h 01m

C$ 954
Quickest round-trip

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Mon 5/10

12:45 p.m.-9:18 p.m.

2 stops10h 33m

Helena

Sun 11/10

6:25 a.m.-3:14 p.m.

1 stop6h 49m

C$ 981

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Mon 27/7

6:10 a.m.-9:20 p.m.

2 stops17h 10m

Helena

Fri 31/7

2:20 p.m.-9:54 a.m.

2 stops17h 34m

C$ 1,118

TorontoHelena

YYZ - HLN

YYZHLN

Toronto Pearson Intl

Mon 27/7

4:18 p.m.-9:20 p.m.

1 stop7h 02m

Helena

Fri 31/7

6:15 a.m.-11:17 p.m.

1 stop15h 02m

C$ 1,181

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

How long does it take to fly to Helena?

Flight times vary depending on what airport in Region of Ontario you fly out of and what airport in Helena you fly into. For example, flying from Toronto to Bozeman takes 6h 27m on average. On the other hand, flying from Ottawa to Bozeman takes 10h 48m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

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

7h 00m

Direct flights

None
The fastest flight from Region of Ontario to Helena takes 7h 00m
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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Frequently asked questions about flying from Ontario to Helena

  • 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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