$336 Cheap Flights from Montreal (YUL) to Key West (EYW)

View $336 flight on Mon, Oct 27, 2025Opens in a new window

Popular airlines from Montreal–Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW)

Cheap Flights from Montreal to Key West (YUL-EYW)

Prices were available within the past 7 days and start at $336 for one-way flights and $617 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Nov 9 - Thu, Nov 13
YUL
Montreal
EYW
Key West
$617 Roundtrip, found 6 days ago
$617
Roundtrip
found 6 days ago
Select United flight, departing Sun, Nov 9 from Montreal to Key West, returning Thu, Nov 13, priced at $617 found 6 days ago
American Airlines
Sat, Nov 1 - Wed, Nov 5
YUL
Montreal
EYW
Key West
$625 Roundtrip, found 11 hours ago
$625
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sat, Nov 1 from Montreal to Key West, returning Wed, Nov 5, priced at $625 found 11 hours ago
Delta
Sun, Feb 15 - Thu, Feb 19
YUL
Montreal
EYW
Key West
$627 Roundtrip, found 6 days ago
$627
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Feb 15 from Montreal to Key West, returning Thu, Feb 19, priced at $627 found 6 days ago
American Airlines
Sat, Nov 22 - Wed, Nov 26
YUL
Montreal
EYW
Key West
$644 Roundtrip, found 18 hours ago
$644
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Nov 22 from Montreal to Key West, returning Wed, Nov 26, priced at $644 found 18 hours ago
United
Sun, Feb 15 - Thu, Feb 19
YUL
Montreal
EYW
Key West
$646 Roundtrip, found 6 days ago
$646
Roundtrip
found 6 days ago
Select United flight, departing Sun, Feb 15 from Montreal to Key West, returning Thu, Feb 19, priced at $646 found 6 days ago
American Airlines
Tue, Nov 11 - Mon, Nov 17
YUL
Montreal
EYW
Key West
$653 Roundtrip, found 6 days ago
$653
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Nov 11 from Montreal to Key West, returning Mon, Nov 17, priced at $653 found 6 days ago
American Airlines
Sat, Nov 22 - Wed, Nov 26
YUL
Montreal
EYW
Key West
$669 Roundtrip, found 18 hours ago
$669
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Nov 22 from Montreal to Key West, returning Wed, Nov 26, priced at $669 found 18 hours ago
American Airlines
Wed, Nov 12 - Sun, Nov 16
YUL
Montreal
EYW
Key West
$670 Roundtrip, found 6 days ago
$670
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Nov 12 from Montreal to Key West, returning Sun, Nov 16, priced at $670 found 6 days ago
WestJet
Tue, Sep 16 - Tue, Sep 23
YUL
Montreal
EYW
Key West
$671 Roundtrip, found 4 days ago
$671
Roundtrip
found 4 days ago
Select WestJet flight, departing Tue, Sep 16 from Montreal to Key West, returning Tue, Sep 23, priced at $671 found 4 days ago
WestJet
Fri, Sep 19 - Fri, Sep 26
YUL
Montreal
EYW
Key West
$672 Roundtrip, found 1 day ago
$672
Roundtrip
found 1 day ago
Select WestJet flight, departing Fri, Sep 19 from Montreal to Key West, returning Fri, Sep 26, priced at $672 found 1 day ago

Find the cheapest month to fly from Montreal (YUL) to Key West (EYW)

September is typically the cheapest month to fly

From $346 - $673 per traveler.

Graph displaying average flight prices per month

Flights from Montreal (YUL) to Key West (EYW)
Origin airport
Pierre Elliott Trudeau Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, United, WestJet
Roundtrip price
$617
Distance
1511 mi

Montreal to Key West Flights

The cheapest times to fly from Montreal to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Montreal to Key West are during the month of November. You can find some of the cheapest flights from Montreal to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Montreal to Key West

Sunday is one of the best days to book for cheap flights from Montreal to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Montreal to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Montreal to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $336 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Montreal to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Montreal to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW) cost?
Grab a cheap one-way flight from $336 or cheap return flight from $617 from Pierre Elliott Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Pierre Elliott Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW)?
November is the cheapest month to fly from YUL to EYW. Planning your trip for the off-season is often the key to landing a great deal.
What is the cheapest airline that flies from Pierre Elliott Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest YUL to EYW flight.
How many flights per day from Pierre Elliott Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW)?
You'll need to book a flight with a layover when traveling from Pierre Elliott Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from YUL to EYW?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on various factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pierre Elliott Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW)?
To arrive at Key West Intl. Airport (EYW) on time, choose a flight that takes off from Pierre Elliott Trudeau Intl. Airport (YUL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Pierre Elliott Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW) last-minute?
Last-minute fares from YUL to EYW are usually more expensive. For the best prices, start searching for flights as early as possible. That said, if you're flexible with your travel plans, it's possible to land a cheap fare just before your departure.
Is it cheaper to book a YUL to EYW flight and hotel package?
You can save money by securing a YUL to EYW flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've selected your ideal accommodations and flights, you can add extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Key West Intl. Airport (EYW)?
Typically, you can reschedule or cancel your YUL to EYW flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you need more details, go to our Customer Service portal.

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*Available to One Key members.