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$380+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Key West (EYW)

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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — EYW
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Pierre Elliott Trudeau Intl to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Key West (EYW). 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 September 11, 2025.

Round-trip from

$581
(Delta)

Popular in

December

Cheapest in

March

Average price

$671
From Montreal Pierre Elliott Trudeau Intl to Key West
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Highest demand for flights based on searches. 27% potential increase in price ($201 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Pierre Elliott Trudeau Intl to Key West

Cheapest flights from Pierre Elliott Trudeau Intl to Key West
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:45 amYUL - EYW
2 stops51h 34mMultiple Airlines
Fri 10/318:55 amEYW - YUL
1 stop15h 35mMultiple Airlines
Deal found 9/9$380
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:00 amYUL - EYW
1 stop6h 02mDelta
Sat 11/16:17 pmEYW - YUL
1 stop5h 31mDelta
Deal found 9/10$596
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:00 amYUL - EYW
1 stop6h 02mDelta
Fri 10/317:40 amEYW - YUL
1 stop5h 55mDelta
Deal found 9/9$597
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2210:30 amYUL - EYW
2 stops8h 52mAmerican Airlines
Wed 10/2911:22 amEYW - YUL
2 stops11h 33mAmerican Airlines
Deal found 9/11$608
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/262:35 pmYUL - EYW
1 stop21h 35mAmerican Airlines
Sun 11/24:53 pmEYW - YUL
1 stop5h 47mAmerican Airlines
Deal found 9/11$614
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/258:20 amYUL - EYW
3 stops29h 32mUnited Airlines
Sat 11/14:00 pmEYW - YUL
2 stops24h 16mUnited Airlines
Deal found 9/10$642
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/52:31 pmYUL - EYW
1 stop21h 39mAmerican Airlines
Thu 10/94:53 pmEYW - YUL
1 stop6h 02mAmerican Airlines
Deal found 9/9$679
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:00 amYUL - EYW
1 stop10h 15mDelta
Thu 10/912:22 pmEYW - YUL
1 stop5h 12mDelta
Deal found 9/11$686

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Key West 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Key West that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Key West

Route

Depart

Return

Price

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 10/24

6:45 am-10:19 am

2 stops51h 34m

Key West

Fri 10/31

8:55 am-12:30 am

1 stop15h 35m

$380

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 10/25

9:28 am-8:06 pm

2 stops10h 38m

Key West

Sat 11/1

6:17 pm-11:48 pm

1 stop5h 31m

$596

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 10/24

9:28 am-8:06 pm

2 stops10h 38m

Key West

Fri 10/31

12:22 pm-11:14 pm

2 stops10h 52m

$597

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Wed 10/22

10:30 am-7:22 pm

2 stops8h 52m

Key West

Wed 10/29

4:58 pm-10:55 pm

1 stop5h 57m

$608

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sun 10/26

2:35 pm-12:10 pm

1 stop21h 35m

Key West

Sun 11/2

4:53 pm-10:40 pm

1 stop5h 47m

$614

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 10/25

8:20 am-1:52 pm

3 stops29h 32m

Key West

Sat 11/1

4:00 pm-4:16 pm

2 stops24h 16m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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

Have a flexible travel schedule? Discover the best time to fly to Key West 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.

Related info for your journey

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

    Most people fly into Key West (EYW) if they book a flight to Key West from Montreal Pierre Elliott Trudeau Intl. On average, Key West has 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day from 0 airlines. Key West is conveniently located just 2.6 mi from Key West’s city center.

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

    For as low as $596, Delta can have you in Key West from Montreal Pierre Elliott Trudeau Intl Airport in 10h 38m. There are 1511 mi between Montreal Pierre Elliott Trudeau Intl Airport and Key West.

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

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

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

    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 Key West.

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

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Key West 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 Key West?

    Currently, August is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Key West (average of $328). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Key West in March is currently the most expensive (average of $491). 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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