When did momondo last update prices for flights from Ontario to Great Falls Airport?

Prices for flights from Ontario to Great Falls Airport are refreshed on a daily basis.

How old do you have to be to fly from Ontario to Great Falls Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to Great Falls Airport.

What documentation or ID do you need to fly to Great Falls Airport?

The travel and health documents you'll need for your trip to Great Falls Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$369 Cheap Flights from Ontario to Great Falls in 2026

Find the cheapest flights from Ontario to Great Falls

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:53 am - 9:20 pmYYZ Toronto Pearson Intl-GTF Great Falls

12h 27m2 stops Chicago O'Hare Intl Denver Intl

6:15 am - 9:15 pmGTF Great Falls-YYZ Toronto Pearson Intl

13h 00m2 stops Denver Intl Chicago O'Hare Intl

$677United Airlines

Sun, Jan 10 - Tue, Jan 12

7:00 am - 5:43 pmYUL Montreal Pierre Elliott Trudeau Intl-GTF Great Falls

12h 43m2 stops Atlanta Hartsfield-Jackson Salt Lake City

5:30 am - 11:51 pmGTF Great Falls-YUL Montreal Pierre Elliott Trudeau Intl

16h 21m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$678Delta

Sun, Jan 10 - Tue, Jan 12

12:45 pm - 9:20 pmYYZ Toronto Pearson Intl-GTF Great Falls

10h 35m2 stops Newark Denver Intl

6:15 am - 3:12 pmGTF Great Falls-YYZ Toronto Pearson Intl

6h 57m1 stop Denver Intl

$679United Airlines

Sun, Jan 10 - Tue, Jan 12

7:00 am - 5:43 pmYUL Montreal Pierre Elliott Trudeau Intl-GTF Great Falls

12h 43m2 stops Atlanta Hartsfield-Jackson Salt Lake City

5:30 am - 11:51 pmGTF Great Falls-YUL Montreal Pierre Elliott Trudeau Intl

16h 21m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$679Delta

Sun, Jan 10 - Tue, Jan 12

7:00 am - 5:43 pmYUL Montreal Pierre Elliott Trudeau Intl-GTF Great Falls

12h 43m2 stops Atlanta Hartsfield-Jackson Salt Lake City

6:20 pm - 11:44 amGTF Great Falls-YUL Montreal Pierre Elliott Trudeau Intl

15h 24m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$680Delta

Sun, Jan 10 - Tue, Jan 12

4:18 pm - 9:22 pmYYZ Toronto Pearson Intl-GTF Great Falls

7h 04m1 stop Denver Intl

6:15 am - 11:59 pmGTF Great Falls-YYZ Toronto Pearson Intl

15h 44m2 stops Denver Intl Chicago O'Hare Intl

$680United Airlines

Thu, Sep 24 - Thu, Oct 1

6:10 pm - 1:29 pmYUL Montreal Pierre Elliott Trudeau Intl-GTF Great Falls

21h 19m2 stops Chicago O'Hare Intl Denver Intl

6:15 am - 5:05 pmGTF Great Falls-YUL Montreal Pierre Elliott Trudeau Intl

8h 50m1 stop Denver Intl

$740United Airlines

Sun, Jan 10 - Tue, Jan 12

5:55 pm - 9:20 pmYUL Montreal Pierre Elliott Trudeau Intl-GTF Great Falls

29h 25m2 stops Houston George Bush Intcntl Denver Intl

6:15 am - 5:05 pmGTF Great Falls-YUL Montreal Pierre Elliott Trudeau Intl

8h 50m1 stop Denver Intl

$762United Airlines

Sun, Jan 10 - Tue, Jan 12

8:35 am - 9:20 pmYYZ Toronto Pearson Intl-GTF Great Falls

14h 45m1 stop Denver Intl

6:15 am - 6:37 pmGTF Great Falls-YYZ Toronto Pearson Intl

10h 22m1 stop Denver Intl

$769United Airlines

Sun, Jan 10 - Tue, Jan 12

9:25 am - 9:20 pmYUL Montreal Pierre Elliott Trudeau Intl-GTF Great Falls

13h 55m2 stops Chicago O'Hare Intl Denver Intl

6:15 am - 5:05 pmGTF Great Falls-YUL Montreal Pierre Elliott Trudeau Intl

8h 50m1 stop Denver Intl

$770United Airlines

Sun, Jan 10 - Tue, Jan 12

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Alaska Airlines flights from Region of Ontario to Great Falls

Our best Alaska Airlines deals on Region of Ontario to Great Falls flight tickets

Alaska Airlines

Jan 10

YYZ5:15 pmToronto Pearson Intl

24h 13m

1 stop

GTF3:28 pmGreat Falls

Jan 12

GTF4:08 pmGreat Falls

21h 57m

1 stop

YYZ4:05 pmToronto Pearson Intl

$849

Alaska Airlines

Jan 10

YYZ5:15 pmToronto Pearson Intl

24h 13m

1 stop

GTF3:28 pmGreat Falls

Jan 12

GTF4:08 pmGreat Falls

21h 57m

1 stop

YYZ4:05 pmToronto Pearson Intl

$922

Alaska Airlines

Jan 10

YYZ5:15 pmToronto Pearson Intl

24h 13m

1 stop

GTF3:28 pmGreat Falls

Jan 12

GTF4:08 pmGreat Falls

21h 57m

1 stop

YYZ4:05 pmToronto Pearson Intl

$924

Delta flights from Region of Ontario to Great Falls

Our best Delta deals on Region of Ontario to Great Falls flight tickets

Delta

Jan 10

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

12h 43m

2 stops

GTF5:43 pmGreat Falls

Jan 12

GTF5:30 amGreat Falls

16h 21m

2 stops

YUL11:51 pmMontreal Pierre Elliott Trudeau Intl

$678

Delta

Jan 10

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

12h 43m

2 stops

GTF5:43 pmGreat Falls

Jan 12

GTF5:30 amGreat Falls

16h 21m

2 stops

YUL11:51 pmMontreal Pierre Elliott Trudeau Intl

$679

Delta

Jan 10

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

12h 43m

2 stops

GTF5:43 pmGreat Falls

Jan 12

GTF6:20 pmGreat Falls

15h 24m

2 stops

YUL11:44 amMontreal Pierre Elliott Trudeau Intl

$680

momondo Fare Finder

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 Toronto Pearson Intl - GTF Great Falls

YYZGTF

Toronto Pearson Intl

Sun 1/10

10:53 am-9:20 pm

2 stops12h 27m

Great Falls

Tue 1/12

6:15 am-9:15 pm

2 stops13h 00m

$677

MontrealGreat Falls

YUL Montreal Pierre Elliott Trudeau Intl - GTF Great Falls

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sun 1/10

7:00 am-5:43 pm

2 stops12h 43m

Great Falls

Tue 1/12

5:30 am-11:51 pm

2 stops16h 21m

$678

Quickest round-trip

TorontoGreat Falls

YYZ Toronto Pearson Intl - GTF Great Falls

YYZGTF

Toronto Pearson Intl

Sun 1/10

12:45 pm-9:20 pm

2 stops10h 35m

Great Falls

Tue 1/12

6:15 am-3:12 pm

1 stop6h 57m

$679

MontrealGreat Falls

YUL Montreal Pierre Elliott Trudeau Intl - GTF Great Falls

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sun 1/10

7:00 am-5:43 pm

2 stops12h 43m

Great Falls

Tue 1/12

5:30 am-11:51 pm

2 stops16h 21m

$679

MontrealGreat Falls

YUL Montreal Pierre Elliott Trudeau Intl - GTF Great Falls

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sun 1/10

7:00 am-5:43 pm

2 stops12h 43m

Great Falls

Tue 1/12

6:20 pm-11:44 am

2 stops15h 24m

$680

TorontoGreat Falls

YYZ Toronto Pearson Intl - GTF Great Falls

YYZGTF

Toronto Pearson Intl

Thu 9/24

4:18 pm-9:22 pm

1 stop7h 04m

Great Falls

Thu 10/1

6:15 am-11:59 pm

2 stops15h 44m

$680

MontrealGreat Falls

YUL Montreal Pierre Elliott Trudeau Intl - GTF Great Falls

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sun 1/10

6:10 pm-1:29 pm

2 stops21h 19m

Great Falls

Tue 1/12

6:15 am-5:05 pm

1 stop8h 50m

$740

MontrealGreat Falls

YUL Montreal Pierre Elliott Trudeau Intl - GTF Great Falls

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sun 1/10

5:55 pm-9:20 pm

2 stops29h 25m

Great Falls

Tue 1/12

6:15 am-5:05 pm

1 stop8h 50m

$762

TorontoGreat Falls

YYZ Toronto Pearson Intl - GTF Great Falls

YYZGTF

Toronto Pearson Intl

Sun 1/10

8:35 am-9:20 pm

1 stop14h 45m

Great Falls

Tue 1/12

6:15 am-6:37 pm

1 stop10h 22m

$769

MontrealGreat Falls

YUL Montreal Pierre Elliott Trudeau Intl - GTF Great Falls

YULGTF

Montreal Pierre Elliott Trudeau Intl

Sun 1/10

9:25 am-9:20 pm

2 stops13h 55m

Great Falls

Tue 1/12

6:15 am-5:05 pm

1 stop8h 50m

$770

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario to Great Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Great Falls?

United Airlines is the most popular carrier operating from Ontario to Great Falls

Cheap Region of Ontario to Great Falls flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Great Falls

Best Price Found	$369
Fastest flight time	12h 27m
Direct flights	None

The best one-way flight to Great Falls from Region of Ontario in the past 72 hours is $369. The best round-trip flight deal from Region of Ontario to Great Falls found on momondo in the last 72 hours is $677.

The fastest flight from Region of Ontario to Great Falls takes 12h 27m

There are no direct flights from Region of Ontario to Great Falls. There are no popular flight routes from Region of Ontario to Great Falls.

Search flight deals

Frequently asked questions about flying from Ontario to Great Falls

When did momondo last update prices for flights from Ontario to Great Falls Airport?
Prices for flights from Ontario to Great Falls Airport are refreshed on a daily basis.
How old do you have to be to fly from Ontario to Great Falls Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to Great Falls Airport.
What documentation or ID do you need to fly to Great Falls Airport?
The travel and health documents you'll need for your trip to Great Falls Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Shelby

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Great Falls?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Great Falls. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Great Falls with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Great Falls flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Great Falls?

Once you have performed a search for Ontario to Great Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Great Falls right now. Can momondo alert me if prices change?

Price alerts on flights to Great Falls from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.