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Cheap flights from Ontario to Great Falls from C$ 396

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 14/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — GTF
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Great Falls

Enter your travel dates to find the best prices.

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 29 January 2026.

Thu 26/24:45 p.m.
YYZ
-
GTF
1 stop25h 32m
Alaska Airlines
Mon 2/34:57 p.m.
GTF
-
YYZ
1 stop20h 38m
Alaska Airlines
Deal found 27/1C$ 607
Wed 29/49:15 a.m.
YUL
-
GTF
2 stops14h 02m
United Airlines
Sat 2/56:15 a.m.
GTF
-
YUL
2 stops13h 11m
United Airlines
Deal found 26/1C$ 787
Wed 29/47:00 a.m.
YUL
-
GTF
2 stops17h 29m
Delta
Sat 2/56:20 p.m.
GTF
-
YUL
2 stops26h 48m
Delta
Deal found 28/1C$ 793
Thu 26/26:10 a.m.
YYZ
-
GTF
2 stops18h 19m
Delta
Mon 2/36:20 p.m.
GTF
-
YYZ
2 stops14h 55m
Delta
Deal found 26/1C$ 828
Thu 26/24:10 p.m.
YYZ
-
GTF
1 stop7h 23m
United Airlines
Mon 2/36:25 a.m.
GTF
-
YYZ
2 stops29h 55m
United Airlines
Deal found 26/1C$ 870

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 29 January 2026.

Round-trip from

C$ 607

One-way from

C$ 396
Alaska Airlines
  • Alaska Airlines
  • 26/2-2/3
  • 2 total stops
  • 46h 10m total
  • Ontario to Great Falls
Search Deals
14/3
  • 14/3
  • 3 total stops
  • 37h 15m total
  • 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 629,999 searches. Data last updated 29 January 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 26/2

4:45 p.m.-4:17 p.m.

1 stop25h 32m

Great Falls

Mon 2/3

4:57 p.m.-3:35 p.m.

1 stop20h 38m

C$ 607

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

9:15 a.m.-9:17 p.m.

2 stops14h 02m

Great Falls

Sat 2/5

6:15 a.m.-9:26 p.m.

2 stops13h 11m

C$ 787

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

7:00 a.m.-10:29 p.m.

2 stops17h 29m

Great Falls

Sat 2/5

6:20 p.m.-11:08 p.m.

2 stops26h 48m

C$ 793

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Thu 26/2

6:10 a.m.-10:29 p.m.

2 stops18h 19m

Great Falls

Mon 2/3

6:20 p.m.-11:15 a.m.

2 stops14h 55m

C$ 828

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Thu 26/2

4:10 p.m.-9:33 p.m.

1 stop7h 23m

Great Falls

Mon 2/3

6:25 a.m.-2:20 p.m.

2 stops29h 55m

C$ 870

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Sat 14/3

10:15 p.m.-9:30 a.m.

3 stops37h 15m

C$ 396

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Fri 13/3

11:45 a.m.-5:48 p.m.

3 stops32h 03m

C$ 409

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Fri 13/3

7:00 a.m.-5:42 p.m.

2 stops12h 42m

C$ 477

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Sat 14/3

4:10 p.m.-9:11 p.m.

1 stop7h 01m

C$ 554

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Fri 13/3

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

1 stop22h 08m

C$ 762

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/1

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$ 787, Alaska Airlines can have you in Great Falls from Region of Ontario in 14h 02m. There are 2860 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

See prices for flight routes from nearby airports that may be better suited for you.
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When you search for this flight from Ontario to Great Falls, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Can Cheapflights notify me if prices for flights from Ontario to Great Falls become cheaper?

Yes! Start tracking prices for Ontario to Great Falls flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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