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Great Falls

$292+ Cheap flights from Ontario to Great Falls (GTF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — GTF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Ontario to Great Falls

Cheapest flights from Ontario to Great Falls
Explore the most affordable flight options available from Ontario to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:45 pm
YYZ
-
GTF
1 stop25h 32m
Alaska Airlines
Mon 3/24:57 pm
GTF
-
YYZ
1 stop20h 38m
Alaska Airlines
Deal found 1/27$447
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:15 am
YUL
-
GTF
2 stops14h 02m
United Airlines
Sat 5/26:15 am
GTF
-
YUL
2 stops13h 11m
United Airlines
Deal found 1/26$580
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:00 am
YUL
-
GTF
2 stops17h 29m
Delta
Sat 5/26:20 pm
GTF
-
YUL
2 stops26h 48m
Delta
Deal found 1/28$584
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:10 am
YYZ
-
GTF
2 stops18h 19m
Delta
Mon 3/26:20 pm
GTF
-
YYZ
2 stops14h 55m
Delta
Deal found 1/26$610
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:10 pm
YYZ
-
GTF
1 stop7h 23m
United Airlines
Mon 3/26:25 am
GTF
-
YYZ
2 stops29h 55m
United Airlines
Deal found 1/26$641

Find flight deals from Ontario to Great Falls

Keep the following information in mind while searching for Ontario to Great Falls flight deals. Data was last updated January 29, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$447
(Alaska Airlines)

One-way from

$292
(Kiwi.com)
Provider with most accurate pricing for Toronto (YTO)-Great Falls flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Great Falls flights.
Search Deals
From Ontario to Great Falls
Search Deals
One-way flight from Ontario to Great Falls
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Ontario to Great Falls that are best for you.

Fly from

Ontario

Fly to

Great Falls

Route

Depart

Return

Price

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Thu 2/26

4:45 pm-4:17 pm

1 stop25h 32m

Great Falls

Mon 3/2

4:57 pm-3:35 pm

1 stop20h 38m

$447

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Wed 4/29

9:15 am-9:17 pm

2 stops14h 02m

Great Falls

Sat 5/2

6:15 am-9:26 pm

2 stops13h 11m

$580

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Wed 4/29

7:00 am-10:29 pm

2 stops17h 29m

Great Falls

Sat 5/2

6:20 pm-11:08 pm

2 stops26h 48m

$584

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Thu 2/26

6:10 am-10:29 pm

2 stops18h 19m

Great Falls

Mon 3/2

6:20 pm-11:15 am

2 stops14h 55m

$610

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Thu 2/26

4:10 pm-9:33 pm

1 stop7h 23m

Great Falls

Mon 3/2

6:25 am-2:20 pm

2 stops29h 55m

$641

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Sat 3/14

10:15 pm-9:30 am

3 stops37h 15m

$292

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Fri 3/13

11:45 am-5:48 pm

3 stops32h 03m

$301

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Fri 3/13

7:00 am-5:42 pm

2 stops12h 42m

$351

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Sat 3/14

4:10 pm-9:11 pm

1 stop7h 01m

$408

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Fri 3/13

5:25 pm-1:33 pm

1 stop22h 08m

$561

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Best time to book a flight from Ontario to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Great Falls
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Great Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Great Falls from Ontario?

    Great Falls (GTF), located 3.5 mi from the city center, is the airport you fly into when you book flights from Ontario to Great Falls.

  • How long is the flight from Region of Ontario to Great Falls?

    A quick flight from Region of Ontario to Great Falls can take about 14h 02m. Alaska Airlines provides one of the quickest options available for as low as $580. Airlines will cover a distance of 1777 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Ontario to Great Falls that include hotel bookings?

    Yes. In addition to deals on Ontario to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Great Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Great Falls.

  • Can I find deals for business class flights from Ontario to Great Falls?

    Yes. Cheapflights offers flight deals from Ontario to Great Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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