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Cheap flights from Montreal to Key West from C$ 334

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — EYW
3 Jan — 10 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Key West

Enter your travel dates to find the best prices.

Best flights from Montreal to Key West
Discover carefully curated flight deals from Montreal to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 December 2025.

Sun 18/18:00 a.m.YUL - EYW
1 stop29h 30mMultiple Airlines
Sun 25/112:51 p.m.EYW - YUL
2 stops35h 52mMultiple Airlines
Deal found 3/12C$ 476
Sat 17/16:00 a.m.YUL - EYW
2 stops11h 19mDelta
Sat 24/112:01 p.m.EYW - YUL
2 stops11h 11mDelta
Deal found 3/12C$ 823
Wed 28/18:00 a.m.YUL - EYW
1 stop27h 56mMultiple Airlines
Sun 1/210:27 p.m.EYW - YUL
2 stops17h 55mMultiple Airlines
Deal found 4/12C$ 501
Sat 17/18:00 a.m.YUL - EYW
1 stop27h 56mMultiple Airlines
Sat 24/110:49 a.m.EYW - YUL
2 stops29h 33mMultiple Airlines
Deal found 3/12C$ 610
Thu 29/18:00 a.m.YUL - EYW
1 stop29h 30mMultiple Airlines
Sun 1/210:06 a.m.EYW - YUL
1 stop14h 24mMultiple Airlines
Deal found 4/12C$ 661
Fri 2/11:40 p.m.YUL - EYW
3 stops23h 50mMultiple Airlines
Wed 7/12:30 p.m.EYW - YUL
3 stops26h 00mMultiple Airlines
Deal found 3/12C$ 716
Fri 16/15:25 p.m.YUL - EYW
2 stops40h 01mMultiple Airlines
Fri 23/12:25 p.m.EYW - YUL
1 stop24h 45mMultiple Airlines
Deal found 3/12C$ 716

Find flight deals from Montreal to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) 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 4 December 2025.

Round-trip from

C$ 476

One-way from

C$ 334
18/1-25/1
  • 18/1-25/1
  • 3 total stops
  • 65h 22m total
  • Montreal to Key West
Search Deals
29/5
  • 29/5
  • 2 total stops
  • 31h 13m total
  • Montreal to Key West
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal 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 629,999 searches. Data last updated 4 December 2025.
Use the filters below to find and compare flights from Montreal to Key West that are best for you.

Fly from

Montreal

Fly to

Key West

Route

Depart

Return

Price

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sun 18/1

8:00 a.m.-1:30 p.m.

1 stop29h 30m

Key West

Sun 25/1

12:51 p.m.-12:43 a.m.

2 stops35h 52m

C$ 476

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

8:00 a.m.-11:56 a.m.

1 stop27h 56m

Key West

Sun 1/2

10:27 p.m.-4:22 p.m.

2 stops17h 55m

C$ 501

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 17/1

8:00 a.m.-11:56 a.m.

1 stop27h 56m

Key West

Sat 24/1

10:49 a.m.-4:22 p.m.

2 stops29h 33m

C$ 610

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

8:00 a.m.-1:30 p.m.

1 stop29h 30m

Key West

Sun 1/2

10:06 a.m.-12:30 a.m.

1 stop14h 24m

C$ 661

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 2/1

1:40 p.m.-1:30 p.m.

3 stops23h 50m

Key West

Wed 7/1

2:30 p.m.-4:30 p.m.

3 stops26h 00m

C$ 716

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 16/1

5:25 p.m.-9:26 a.m.

2 stops40h 01m

Key West

Fri 23/1

2:25 p.m.-3:10 p.m.

1 stop24h 45m

C$ 716

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 17/1

6:00 a.m.-5:19 p.m.

2 stops11h 19m

Key West

Sat 24/1

12:01 p.m.-11:12 p.m.

2 stops11h 11m

C$ 823

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 29/5

6:45 a.m.-1:58 p.m.

2 stops31h 13m

C$ 334

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 30/5

7:00 a.m.-1:10 p.m.

1 stop6h 10m

C$ 454

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

6:30 a.m.-3:06 p.m.

1 stop8h 36m

C$ 466

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 19 results
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Best time to book a flight from Montreal to Key West

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

What’s the top layover airport for flights from Montreal to Key West?

Share of one-stop round-trip flights from Montreal to Key West chosen by Cheapflights users in the past 12 months, using the same layover each way.

Atlanta (ATL) – chosen by Cheapflights users on 86% of one-stop itineraries from Montreal to Key West on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to Key West?

Average round-trip fare for 1-stop flights from Montreal to Key West, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of C$ 1,026.

What’s the fastest layover option from Montreal to Key West?

Shortest average travel time for 1-stop one-way flights from Montreal to Key West, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 6h 26m.

Which airport typically offers the quickest layover for flights from Montreal to Key West?

Average layover duration for 1-stop one-way flights from Montreal to Key West, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 24m.

Related info for your journey

Find useful and relevant information for your journey from Montreal 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?

    For a flight from Montreal to Key West, you will be flying into Key West. Key West (EYW) is just 4.2 km from the centre of the city. Key West is the only Key West airport and it handles 0 inbound flights from Montreal per day. 0 airlines have flights to Key West from Montreal on a regular basis.

  • Can I find deals for flights from Montreal to Key West that include hotel bookings?

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

  • How can I find direct flights from Montreal to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Key West.

  • Can I find deals for business class flights from Montreal to Key West?

    Yes. Cheapflights offers flight deals from Montreal 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Montreal to Key West

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Fly with Cheapflights

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How does Cheapflights help users find flights from Montreal to Key West?

Deals for Montreal to Key West flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Key West?

Millions of users choose and trust Cheapflights to book the best flight deals from Montreal to Key West for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Montreal to Key West with no change fees?

Need flexible booking options for your flight to Key West from Montreal? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Montreal to Key West become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Key West from Montreal today and book when prices fit your budget.

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