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Cheap flights from Ontario to Great Falls from C$ 514

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — GTF
3 Sep — 10 Sep1
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 4 August 2026.

Sat 5/126:00 a.m. -
2 stops18h 46m
Tue 8/121:13 p.m. -
2 stops26h 01m
Deal found 3/8C$ 890
Tue 27/107:00 a.m. -
2 stops17h 44m
Sat 31/105:40 a.m. -
2 stops15h 45m
Deal found 3/8C$ 908
Sat 5/124:00 p.m. -
1 stop7h 20m
Tue 8/126:15 a.m. -
1 stop6h 57m
Deal found 3/8C$ 943
Tue 27/106:00 a.m. -
2 stops17h 38m
Sat 31/102:45 p.m. -
2 stops23h 31m
Deal found 2/8C$ 946
Sun 30/810:45 a.m. -
1 stop12h 27m
Sun 6/96:15 a.m. -
1 stop7h 01m
Deal found 1/8C$ 988
Mon 24/810:45 a.m. -
2 stops12h 27m
Fri 28/86:15 a.m. -
2 stops15h 39m
Deal found 1/8C$ 1,029
Thu 6/86:30 a.m. -
2 stops17h 04m
Mon 10/86:15 a.m. -
1 stop15h 02m
Deal found 2/8C$ 1,383
Mon 24/84:18 p.m. -
1 stop6h 54m
Fri 28/86:15 a.m. -
1 stop15h 02m
Deal found 1/8C$ 1,460

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 4 August 2026.

Round-trip from

C$ 890

One-way from

C$ 514
Delta
  • Delta
  • 5/12-8/12
  • 4 total stops
  • 44h 47m total
  • Ontario to Great Falls
Search Deals
United Airlines
  • United Airlines
  • 16/9
  • 2 total stops
  • 12h 12m 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 4 August 2026.
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

Cheapest round-trip

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Sat 5/12

6:00 a.m.-10:46 p.m.

2 stops18h 46m

Great Falls

Tue 8/12

1:13 p.m.-5:14 p.m.

2 stops26h 01m

C$ 890

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

7:00 a.m.-10:44 p.m.

2 stops17h 44m

Great Falls

Sat 31/10

5:40 a.m.-11:25 p.m.

2 stops15h 45m

C$ 908
Quickest round-trip

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Sat 5/12

4:00 p.m.-9:20 p.m.

1 stop7h 20m

Great Falls

Tue 8/12

6:15 a.m.-3:12 p.m.

1 stop6h 57m

C$ 943

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

6:00 a.m.-9:38 p.m.

2 stops17h 38m

Great Falls

Sat 31/10

2:45 p.m.-4:16 p.m.

2 stops23h 31m

C$ 946

MontrealGreat Falls

YUL - GTF

YULGTF

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

9:45 a.m.-9:12 p.m.

2 stops13h 27m

Great Falls

Tue 22/9

6:15 a.m.-10:40 a.m.

2 stops26h 25m

C$ 946

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Sun 30/8

10:15 a.m.-9:12 p.m.

2 stops12h 57m

Great Falls

Sun 6/9

6:15 a.m.-7:37 p.m.

2 stops11h 22m

C$ 946
Cheapest one-way
Quickest one-way

TorontoGreat Falls

YYZ - GTF

YYZGTF

Toronto Pearson Intl

Wed 16/9

11:00 a.m.-9:12 p.m.

2 stops12h 12m

C$ 514

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Sorted by cheapest first

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$ 946, Delta can have you in Great Falls from Region of Ontario in 17h 38m. 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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Why should you use Cheapflights to find cheap flight tickets from Ontario to Great Falls?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Great Falls for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to Great Falls with no change fees?

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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