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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone from C$ 874

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 28/7. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — WYS
13 Apr — 20 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to West Yellowstone

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to West Yellowstone
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to West Yellowstone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 March 2026.

Tue 28/75:05 p.m.
YUL
-
WYS
2 stops22h 27m
United Airlines
Fri 31/75:45 p.m.
WYS
-
YUL
2 stops16h 15m
United Airlines
Deal found 8/3C$ 874
Sun 26/75:05 p.m.
YUL
-
WYS
2 stops22h 27m
United Airlines
Tue 4/82:07 p.m.
WYS
-
YUL
2 stops19h 53m
United Airlines
Deal found 11/3C$ 1,015
Sun 26/78:15 a.m.
YUL
-
WYS
1 stop10h 14m
Multiple Airlines
Tue 4/82:07 p.m.
WYS
-
YUL
1 stop25h 03m
Multiple Airlines
Deal found 11/3C$ 3,793

Find flight deals from Pierre Elliott Trudeau Intl to West Yellowstone

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to West Yellowstone (WYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 March 2026.

Round-trip from

C$ 885
United Airlines
  • United Airlines
  • 28/7-31/7
  • 4 total stops
  • 41h 42m total
  • Montreal to West Yellowstone
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to West Yellowstone 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 14 March 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealWest Yellowstone

YUL - WYS

YULWYS

Montreal Pierre Elliott Trudeau Intl

Tue 28/7

5:05 p.m.-1:32 p.m.

2 stops22h 27m

West Yellowstone

Fri 31/7

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

2 stops16h 15m

C$ 874

MontrealWest Yellowstone

YUL - WYS

YULWYS

Montreal Pierre Elliott Trudeau Intl

Sun 26/7

5:05 p.m.-1:32 p.m.

2 stops22h 27m

West Yellowstone

Tue 4/8

2:07 p.m.-12:00 p.m.

2 stops19h 53m

C$ 1,015
Quickest round-trip

MontrealWest Yellowstone

YUL - WYS

YULWYS

Montreal Pierre Elliott Trudeau Intl

Sun 26/7

8:15 a.m.-4:29 p.m.

1 stop10h 14m

West Yellowstone

Tue 4/8

2:07 p.m.-5:10 p.m.

1 stop25h 03m

C$ 3,793

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Sorted by cheapest first

Best time to book a flight from Pierre Elliott Trudeau Intl to West Yellowstone

Have a flexible travel schedule? Discover the best time to fly to West Yellowstone from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone?

Currently, March is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone (average of C$ 456). Flying from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone in November is currently the most expensive (average of C$ 1,230). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to West Yellowstone. 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 West Yellowstone from Montreal Pierre Elliott Trudeau Intl?

    Most people fly into West Yellowstone (WYS) if they book a flight to West Yellowstone from Montreal Pierre Elliott Trudeau Intl. On average, Yellowstone has 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day from 0 airlines. West Yellowstone is conveniently located just 3.1 km from West Yellowstone’s city centre.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone?

    Airlines like United Airlines fly from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone in about 22h 27m. The time it takes to get you to your destination can typically vary by up to . There are 2906 km between Montreal Pierre Elliott Trudeau Intl Airport and West Yellowstone.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to West Yellowstone that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to West Yellowstone flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to West Yellowstone?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to West Yellowstone.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to West Yellowstone?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to West Yellowstone by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone?

    Currently, March is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone (average of C$ 456). Flying from Montreal Pierre Elliott Trudeau Intl Airport to West Yellowstone in November is currently the most expensive (average of C$ 1,230). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Pierre Elliott Trudeau Intl to West Yellowstone

See prices for flight routes from nearby airports that may be better suited for you.
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Can Cheapflights find flights from Pierre Elliott Trudeau Intl to West Yellowstone with no change fees?

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