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Great Falls

$496+ Cheap flights from Ontario to Great Falls (GTF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — GTF
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Ontario to Great Falls

Best flights from Ontario to Great Falls
Discover carefully curated flight deals from Ontario to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 1/94:45 pmYYZ - GTF
1 stop26h 34mAlaska Airlines
Mon 1/125:59 pmGTF - YYZ
1 stop19h 36mAlaska Airlines
Deal found 12/15$496
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Fri 1/99:00 pmYYZ - GTF
2 stops18h 48mUnited Airlines
Mon 1/122:29 pmGTF - YYZ
2 stops17h 29mUnited Airlines
Deal found 12/14$608
This Delta deal was found by Cheapflights users on 12/15. 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 1/1512:54 pmYUL - GTF
2 stops35h 36mDelta
Mon 1/191:15 pmGTF - YUL
2 stops20h 30mDelta
Deal found 12/15$621
This United Airlines deal was found by Cheapflights users on 12/14. 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 1/157:00 pmYUL - GTF
2 stops20h 48mUnited Airlines
Mon 1/192:29 pmGTF - YUL
1 stop24h 29mUnited Airlines
Deal found 12/14$757
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Sat 5/168:10 amYUL - GTF
1 stop15h 07mUnited Airlines
Sun 5/317:00 amGTF - YUL
2 stops22h 46mUnited Airlines
Deal found 12/15$763

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 December 16, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$496
(Alaska Airlines)
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

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 December 16, 2025.
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

Fri 1/9

4:45 pm-5:19 pm

1 stop26h 34m

Great Falls

Mon 1/12

5:59 pm-3:35 pm

1 stop19h 36m

$496

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Fri 1/9

9:00 pm-1:48 pm

2 stops18h 48m

Great Falls

Mon 1/12

2:29 pm-9:58 am

2 stops17h 29m

$608

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Thu 1/15

12:54 pm-10:30 pm

2 stops35h 36m

Great Falls

Mon 1/19

1:15 pm-11:45 am

2 stops20h 30m

$621

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Thu 1/15

7:00 pm-1:48 pm

2 stops20h 48m

Great Falls

Mon 1/19

2:29 pm-4:58 pm

1 stop24h 29m

$757

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sat 5/16

8:10 am-9:17 pm

1 stop15h 07m

Great Falls

Sun 5/31

7:00 am-7:46 am

2 stops22h 46m

$763

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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 18h 48m. Alaska Airlines provides one of the quickest options available for as low as $608. Airlines will cover a distance of 1546 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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