Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Ontario to Great Falls from C$ 367

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 Great Falls departing on 20/11. 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

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Great Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 a.m. - 9:15 p.m.YYZ-GTF
16h 15m2 stops
United Airlines Logo
7:00 a.m. - 11:29 p.m.GTF-YYZ
14h 29m2 stops
C$ 909United Airlines
Find Deal
Wed, 25 Feb - Thu, 26 Feb
United Airlines Logo
4:00 p.m. - 9:15 p.m.YYZ-GTF
7h 15m1 stop
United Airlines Logo
7:00 a.m. - 9:29 p.m.GTF-YYZ
12h 29m2 stops
C$ 911United Airlines
Find Deal
Wed, 25 Feb - Thu, 26 Feb
United Airlines Logo
4:00 p.m. - 9:15 p.m.YYZ-GTF
7h 15m1 stop
United Airlines Logo
7:00 a.m. - 10:41 p.m.GTF-YYZ
13h 41m1 stop
C$ 1,099United Airlines
Find Deal
Wed, 25 Feb - Thu, 26 Feb

United Airlines flights from Region of Ontario to Great Falls

Our best United Airlines deals on Region of Ontario to Great Falls flight tickets
United Airlines
25 Feb
YYZ7:00 a.m.Toronto Pearson Intl
16h 15m
2 stops
GTF9:15 p.m.Great Falls
26 Feb
GTF7:00 a.m.Great Falls
14h 29m
2 stops
YYZ11:29 p.m.Toronto Pearson Intl
C$ 909
Find similar
United Airlines
25 Feb
YYZ4:00 p.m.Toronto Pearson Intl
7h 15m
1 stop
GTF9:15 p.m.Great Falls
26 Feb
GTF7:00 a.m.Great Falls
12h 29m
2 stops
YYZ9:29 p.m.Toronto Pearson Intl
C$ 911
Find similar
United Airlines
25 Feb
YYZ4:00 p.m.Toronto Pearson Intl
7h 15m
1 stop
GTF9:15 p.m.Great Falls
26 Feb
GTF7:00 a.m.Great Falls
13h 41m
1 stop
YYZ10:41 p.m.Toronto Pearson Intl
C$ 1,099
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Great Falls 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 6 October 2025.
Use the filters below to find and compare flights from Ontario to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Wed 25/2

7:00 a.m.-9:15 p.m.

2 stops16h 15m

Great Falls

Thu 26/2

7:00 a.m.-11:29 p.m.

2 stops14h 29m

C$ 909

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Wed 25/2

4:00 p.m.-9:15 p.m.

1 stop7h 15m

Great Falls

Thu 26/2

7:00 a.m.-9:29 p.m.

2 stops12h 29m

C$ 911

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Wed 25/2

4:00 p.m.-9:15 p.m.

1 stop7h 15m

Great Falls

Thu 26/2

7:00 a.m.-10:41 p.m.

1 stop13h 41m

C$ 1,099

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Thu 20/11

6:45 a.m.-10:06 a.m.

2 stops29h 21m

C$ 367

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Thu 20/11

6:45 a.m.-10:06 a.m.

3 stops29h 21m

C$ 399

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Thu 20/11

5:25 p.m.-1:33 p.m.

1 stop22h 08m

C$ 717

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sun 19/10

7:40 p.m.-5:35 p.m.

2 stops47h 55m

C$ 734

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sun 19/10

7:40 p.m.-5:35 p.m.

3 stops47h 55m

C$ 735

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Great Falls from

How to get the cheapest flight ticket from Region of Ontario to Great Falls

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 day to depart on your flight to Great Falls?

Our data shows that Friday is the least expensive day to fly to Great Falls. Tickets to fly out on this day can be as low as C$ 765. On the other hand, Monday is the most expensive day to depart from Region of Ontario because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 914.

What is the cheapest time of day to depart on your flight to Great Falls?

Our data shows that the cheapest Region of Ontario to Great Falls flights are usually those with departure times in the afternoon. Our users have found flights to Great Falls in the afternoon for as low as C$ 866. In contrast, the most expensive time of day to depart to Great Falls is in the morning when prices are around C$ 871.

Cheap Region of Ontario to Great Falls flight deals and tips

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

Direct flights

None
There are no direct flights from Region of Ontario to Great Falls. There are no popular flight routes from Region of Ontario to Great Falls.
Search flight deals

  • When did momondo last update prices for flights from Ontario to Great Falls Airport?

    Prices for flights from Ontario to Great Falls Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Great Falls Airport.

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

    The necessary travel and health documents for your Great Falls 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.

Travelling to a place near Great Falls?

Book flights to Great Falls if you plan to visit one of these locations
Shelby

Why use momondo?

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

Finding the right flight to Great Falls from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Great Falls quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Great Falls from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Great Falls?

momondo provides multiple filters to help you find the best flight to Great Falls from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Great Falls from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Great Falls trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 5/11
Wed 12/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States