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Cheap flights from Ontario to Great Falls from C$ 683

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — GTF
15 Jan — 22 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Great Falls

Enter your travel dates to find the best prices.

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 16 December 2025.

Fri 9/14:45 p.m.YYZ - GTF
1 stop26h 34mAlaska Airlines
Mon 12/15:59 p.m.GTF - YYZ
1 stop19h 36mAlaska Airlines
Deal found 15/12C$ 683
Fri 9/19:00 p.m.YYZ - GTF
2 stops18h 48mUnited Airlines
Mon 12/12:29 p.m.GTF - YYZ
2 stops18h 11mUnited Airlines
Deal found 13/12C$ 834
Thu 15/112:54 p.m.YUL - GTF
2 stops35h 36mDelta
Mon 19/11:15 p.m.GTF - YUL
2 stops20h 30mDelta
Deal found 15/12C$ 855
Thu 15/15:25 p.m.YUL - GTF
1 stop30h 28mUnited Airlines
Mon 19/12:29 p.m.GTF - YUL
2 stops19h 01mUnited Airlines
Deal found 13/12C$ 1,042
Sat 16/58:10 a.m.YUL - GTF
1 stop15h 07mUnited Airlines
Sun 31/57:00 a.m.GTF - YUL
2 stops22h 46mUnited Airlines
Deal found 15/12C$ 1,050

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 16 December 2025.

Round-trip from

C$ 683
Alaska Airlines
  • Alaska Airlines
  • 9/1-12/1
  • 2 total stops
  • 46h 10m total
  • Ontario to Great Falls
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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 629,999 searches. Data last updated 16 December 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 9/1

4:45 p.m.-5:19 p.m.

1 stop26h 34m

Great Falls

Mon 12/1

5:59 p.m.-3:35 p.m.

1 stop19h 36m

C$ 683

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Fri 9/1

9:00 p.m.-1:48 p.m.

2 stops18h 48m

Great Falls

Mon 12/1

2:29 p.m.-10:40 a.m.

2 stops18h 11m

C$ 834

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

12:54 p.m.-10:30 p.m.

2 stops35h 36m

Great Falls

Mon 19/1

1:15 p.m.-11:45 a.m.

2 stops20h 30m

C$ 855

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

5:25 p.m.-9:53 p.m.

1 stop30h 28m

Great Falls

Mon 19/1

2:29 p.m.-11:30 a.m.

2 stops19h 01m

C$ 1,042

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sat 16/5

8:10 a.m.-9:17 p.m.

1 stop15h 07m

Great Falls

Sun 31/5

7:00 a.m.-7:46 a.m.

2 stops22h 46m

C$ 1,050

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/12

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 5.7 km from the city centre, 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?

    For as low as C$ 683, Alaska Airlines can have you in Great Falls from Region of Ontario in 26h 34m. There are 2488 km between Region of Ontario and Great Falls. Both multi-stop and direct flights can be found to your destination and back.

  • 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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Alternative routes for Ontario to Great Falls

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Yes! Cheapflights helps users easily find flights from Ontario to Great Falls with no change fees.

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