Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Key West from C$ 285

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Key West departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:45 a.m. - 1:30 p.m.YUL-EYW
6h 45m1 stop
Multiple Airlines Logo
5:52 p.m. - 4:28 p.m.EYW-YUL
22h 36m2 stops
C$ 725Multiple Airlines
Find Deal
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
5:10 p.m. - 11:20 a.m.YUL-EYW
18h 10m2 stops
Multiple Airlines Logo
12:20 p.m. - 12:45 a.m.EYW-YUL
12h 25m1 stop
C$ 735Multiple Airlines
Find Deal
Sat, 20 Dec - Thu, 25 Dec
Multiple Airlines Logo
4:00 p.m. - 11:20 a.m.YUL-EYW
19h 20m3 stops
Multiple Airlines Logo
12:20 p.m. - 12:45 a.m.EYW-YUL
12h 25m1 stop
C$ 749Multiple Airlines
Find Deal
Sat, 20 Dec - Thu, 25 Dec
Multiple Airlines Logo
4:00 p.m. - 11:20 a.m.YUL-EYW
19h 20m3 stops
Multiple Airlines Logo
12:20 p.m. - 12:30 a.m.EYW-YUL
12h 10m2 stops
C$ 801Multiple Airlines
Find Deal
Sat, 20 Dec - Thu, 25 Dec
Multiple Airlines Logo
6:45 a.m. - 1:30 p.m.YUL-EYW
6h 45m1 stop
Multiple Airlines Logo
2:25 p.m. - 4:55 p.m.EYW-YUL
26h 30m3 stops
C$ 808Multiple Airlines
Find Deal
Mon, 9 Mar - Mon, 16 Mar
United Airlines Logo
9:25 a.m. - 2:55 p.m.YUL-EYW
29h 30m1 stop
United Airlines Logo
2:24 p.m. - 9:42 p.m.EYW-YUL
7h 18m1 stop
C$ 816United Airlines
Find Deal
Mon, 9 Mar - Wed, 18 Mar
United Airlines Logo
7:10 p.m. - 4:22 p.m.YUL-EYW
21h 12m2 stops
United Airlines Logo
4:15 p.m. - 5:55 p.m.EYW-YUL
25h 40m2 stops
C$ 823United Airlines
Find Deal
Mon, 5 Jan - Sat, 10 Jan
Delta Logo
9:34 a.m. - 11:37 a.m.YUL-EYW
26h 03m1 stop
Delta Logo
6:25 p.m. - 11:59 p.m.EYW-YUL
5h 34m1 stop
C$ 825Delta
Find Deal
Sat, 7 Mar - Sat, 14 Mar
Delta Logo
9:20 a.m. - 7:41 p.m.YUL-EYW
10h 21m2 stops
Delta Logo
7:35 a.m. - 6:35 p.m.EYW-YUL
11h 00m2 stops
C$ 827Delta
Find Deal
Wed, 11 Mar - Thu, 19 Mar
American Airlines Logo
2:25 p.m. - 11:20 a.m.YUL-EYW
20h 55m1 stop
American Airlines Logo
6:23 p.m. - 1:45 p.m.EYW-YUL
19h 22m1 stop
C$ 839American Airlines
Find Deal
Tue, 10 Mar - Tue, 17 Mar

Delta flights from Montreal Pierre Elliott Trudeau Intl Airport to Key West

Our best Delta deals on Montreal Pierre Elliott Trudeau Intl Airport to Key West flight tickets
Delta
7 Mar
YUL9:34 a.m.Montreal Pierre Elliott Trudeau Intl
26h 03m
1 stop
EYW11:37 a.m.Key West
14 Mar
EYW6:25 p.m.Key West
5h 34m
1 stop
YUL11:59 p.m.Montreal Pierre Elliott Trudeau Intl
Delta
11 Mar
YUL9:20 a.m.Montreal Pierre Elliott Trudeau Intl
10h 21m
2 stops
EYW7:41 p.m.Key West
19 Mar
EYW7:35 a.m.Key West
11h 00m
2 stops
YUL6:35 p.m.Montreal Pierre Elliott Trudeau Intl
Delta
14 Dec
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
11h 15m
2 stops
EYW5:15 p.m.Key West
17 Dec
EYW3:02 p.m.Key West
8h 30m
2 stops
YUL11:32 p.m.Montreal Pierre Elliott Trudeau Intl

American Airlines flights from Montreal Pierre Elliott Trudeau Intl Airport to Key West

Our best American Airlines deals on Montreal Pierre Elliott Trudeau Intl Airport to Key West flight tickets
American Airlines
10 Mar
YUL2:25 p.m.Montreal Pierre Elliott Trudeau Intl
20h 55m
1 stop
EYW11:20 a.m.Key West
17 Mar
EYW6:23 p.m.Key West
19h 22m
1 stop
YUL1:45 p.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
20 Dec
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
6h 39m
1 stop
EYW2:09 p.m.Key West
25 Dec
EYW8:00 a.m.Key West
5h 46m
1 stop
YUL1:46 p.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
5 Dec
YUL3:59 p.m.Montreal Pierre Elliott Trudeau Intl
19h 03m
2 stops
EYW11:02 a.m.Key West
8 Dec
EYW7:00 a.m.Key West
15h 59m
2 stops
YUL10:59 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,132
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momondo Fare Finder

 
Customize your flight search to find flights from Montreal Pierre Elliott Trudeau Intl Airport 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, momondo users made 96,600 searches. Data last updated 26 November 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

Fly to

Route

Depart

Return

Price

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

6:45 a.m.-1:30 p.m.

1 stop6h 45m

Key West

Mon 16/3

5:52 p.m.-4:28 p.m.

2 stops22h 36m

C$ 725

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 20/12

5:10 p.m.-11:20 a.m.

2 stops18h 10m

Key West

Thu 25/12

12:20 p.m.-12:45 a.m.

1 stop12h 25m

C$ 735

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 20/12

4:00 p.m.-11:20 a.m.

3 stops19h 20m

Key West

Thu 25/12

12:20 p.m.-12:45 a.m.

1 stop12h 25m

C$ 749

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 20/12

4:00 p.m.-11:20 a.m.

3 stops19h 20m

Key West

Thu 25/12

12:20 p.m.-12:30 a.m.

2 stops12h 10m

C$ 801

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

6:45 a.m.-1:30 p.m.

1 stop6h 45m

Key West

Mon 16/3

2:25 p.m.-4:55 p.m.

3 stops26h 30m

C$ 808

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

9:25 a.m.-2:55 p.m.

1 stop29h 30m

Key West

Wed 18/3

2:24 p.m.-9:42 p.m.

1 stop7h 18m

C$ 816

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Mon 5/1

7:10 p.m.-4:22 p.m.

2 stops21h 12m

Key West

Sat 10/1

4:15 p.m.-5:55 p.m.

2 stops25h 40m

C$ 823

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 7/3

9:34 a.m.-11:37 a.m.

1 stop26h 03m

Key West

Sat 14/3

6:25 p.m.-11:59 p.m.

1 stop5h 34m

C$ 825

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Wed 11/3

9:20 a.m.-7:41 p.m.

2 stops10h 21m

Key West

Thu 19/3

7:35 a.m.-6:35 p.m.

2 stops11h 00m

C$ 827

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

2:25 p.m.-11:20 a.m.

1 stop20h 55m

Key West

Tue 17/3

6:23 p.m.-1:45 p.m.

1 stop19h 22m

C$ 839

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to Key West

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 day to depart on your flight to Key West?

According to our data, Monday is the cheapest day to fly to Key West from Montreal Pierre Elliott Trudeau Intl Airport. The lowest ticket price found for a Monday departure recently was C$ 431. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Key West on Sunday is C$ 1,285.

What is the cheapest time of day to depart on your flight to Key West?

Our most recent data shows that the best time of day to fly to Key West is in the afternoon. Flights from Montreal Pierre Elliott Trudeau Intl Airport to Key West during this time can be as low as C$ 191. Try not to purchase tickets at noon because they tend to be around C$ 1,127. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal Pierre Elliott Trudeau Intl Airport to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montreal Pierre Elliott Trudeau Intl Airport to Key West (YUL to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Key West

Fastest flight time

6h 45m

Direct flights

None
The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to Key West takes 6h 45m
There are no direct flights from Montreal Pierre Elliott Trudeau Intl Airport to Key West. There are no popular flight routes from Montreal Pierre Elliott Trudeau Intl Airport to Key West.
  • How far is Montreal Pierre Elliott Trudeau Intl to Key West by plane?

    There are 2432.7 km between Montreal Pierre Elliott Trudeau Intl and Key West. By plane, this route typically takes 6h 39m.

  • When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Key West Airport?

    Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Key West Airport were last updated today.

  • How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to Key West 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 Montreal Pierre Elliott Trudeau Intl Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The travel and health documents you'll need for your trip to Key West 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 Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Key West?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to Key West for you.

Can I find flights from Montreal to Key West with flexible booking policies on momondo?

All flight searches from Montreal to Key West on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Montreal to Key West?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Montreal to Key West.

I’m not ready to book a flight from Montreal to Key West right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Montreal to Key West flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Fri 26/12
Fri 2/1

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