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Cheap flights from Ontario to Yellowstone National Park from C$ 1,034

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Yellowstone National Park departing on 6/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Ontario to Yellowstone National Park

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:30 p.m. - 4:07 p.m.
YUL
-
WYS
23h 37m2 stops
United Airlines Logo
5:45 p.m. - 12:00 p.m.
WYS
-
YUL
16h 15m2 stops
C$ 1,034United Airlines
Sat, 6 Jun - Sat, 13 Jun
United Airlines Logo
4:30 p.m. - 1:20 p.m.
YUL
-
WYS
22h 50m1 stop
United Airlines Logo
5:45 p.m. - 10:11 a.m.
WYS
-
YUL
14h 26m2 stops
C$ 1,239United Airlines
Sat, 6 Jun - Sat, 13 Jun
United Airlines Logo
8:10 a.m. - 4:07 p.m.
YUL
-
WYS
9h 57m1 stop
United Airlines Logo
5:45 p.m. - 3:28 p.m.
WYS
-
YUL
19h 43m1 stop
C$ 1,798United Airlines
Sat, 6 Jun - Sat, 13 Jun

United Airlines flights from Region of Ontario to Yellowstone National Park

Our best United Airlines deals on Region of Ontario to Yellowstone National Park flight tickets
United Airlines
6 Jun
YUL6:30 p.m.Montreal Pierre Elliott Trudeau Intl
23h 37m
2 stops
WYS4:07 p.m.West Yellowstone
13 Jun
WYS5:45 p.m.West Yellowstone
16h 15m
2 stops
YUL12:00 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,034
Find similar
United Airlines
6 Jun
YUL4:30 p.m.Montreal Pierre Elliott Trudeau Intl
22h 50m
1 stop
WYS1:20 p.m.West Yellowstone
13 Jun
WYS5:45 p.m.West Yellowstone
14h 26m
2 stops
YUL10:11 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,239
Find similar
United Airlines
6 Jun
YUL8:10 a.m.Montreal Pierre Elliott Trudeau Intl
9h 57m
1 stop
WYS4:07 p.m.West Yellowstone
13 Jun
WYS5:45 p.m.West Yellowstone
19h 43m
1 stop
YUL3:28 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,798
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Yellowstone National Park 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, momondo users made 96,600 searches. Data last updated 15 December 2025.
Use the filters below to find and compare flights from Ontario to Yellowstone National Park that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontrealWest Yellowstone

YUL - WYS

YULWYS

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

6:30 p.m.-4:07 p.m.

2 stops23h 37m

West Yellowstone

Sat 13/6

5:45 p.m.-12:00 p.m.

2 stops16h 15m

C$ 1,034

MontrealWest Yellowstone

YUL - WYS

YULWYS

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

4:30 p.m.-1:20 p.m.

1 stop22h 50m

West Yellowstone

Sat 13/6

5:45 p.m.-10:11 a.m.

2 stops14h 26m

C$ 1,239

MontrealWest Yellowstone

YUL - WYS

YULWYS

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

8:10 a.m.-4:07 p.m.

1 stop9h 57m

West Yellowstone

Sat 13/6

5:45 p.m.-3:28 p.m.

1 stop19h 43m

C$ 1,798

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Yellowstone National Park from

How to get the cheapest flight ticket from Region of Ontario to Yellowstone National Park

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

Can stopping save me money on Region of Ontario to Yellowstone National Park flights?

You could potentially save up to 3% on your flight if you consider stops on a Region of Ontario to Yellowstone National Park flight.

Cheap Region of Ontario to Yellowstone National Park flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Yellowstone National Park

Fastest flight time

21h 27m

Direct flights

None
The fastest flight from Region of Ontario to Yellowstone National Park takes 21h 27m
There are no direct flights from Region of Ontario to Yellowstone National Park. There are no popular flight routes from Region of Ontario to Yellowstone National Park.
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  • When did momondo last update prices for flights from Ontario to Yellowstone National Park?

    Prices for flights from Ontario to Yellowstone National Park refresh daily.

  • How old do you have to be to fly from Ontario to Yellowstone National Park?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Yellowstone National Park.

  • What documentation or ID do you need to fly to Yellowstone National Park?

    The required travel and health documents for your Yellowstone National Park trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Yellowstone National Park. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Region of Ontario to Yellowstone National Park?

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Yellowstone National Park?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Yellowstone National Park . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Yellowstone National Park with flexible booking policies on momondo?

All flight searches from Ontario to Yellowstone National Park on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Yellowstone National Park?

Once all potential Ontario to Yellowstone National Park flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Yellowstone National Park from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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