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Cheap flights from Montreal to Key West from C$ 598

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — EYW
21 Apr — 28 Apr1
1 adult

Cheap 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 16 April 2025.

Round-trip from

C$ 598

Popular in

December

Cheapest in

May

Average price

C$ 975
20/9-1/10
  • 20/9-1/10
  • 3 total stops
  • 32h 55m total
  • Montreal to Key West
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (C$ 347 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease (C$ 61 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Montreal to Key West

Cheapest flights from Montreal to Key West
Explore the most affordable flight options available from Montreal to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 April 2025.

Sat 20/94:35 p.m.YUL - EYW
2 stops39h 25mUnited Airlines
Wed 1/108:45 a.m.EYW - YUL
2 stops32h 13mUnited Airlines
Deal found 16/4C$ 598
Sat 31/57:00 a.m.YUL - EYW
1 stop10h 30mDelta
Sat 7/66:25 p.m.EYW - YUL
1 stop5h 29mDelta
Deal found 15/4C$ 825
Sat 20/92:35 p.m.YUL - EYW
1 stop22h 59mAmerican Airlines
Wed 1/103:01 p.m.EYW - YUL
1 stop7h 44mAmerican Airlines
Deal found 16/4C$ 837
Tue 22/46:45 a.m.YUL - EYW
2 stops31h 20mWestJet
Tue 29/43:00 p.m.EYW - YUL
1 stop8h 59mWestJet
Deal found 15/4C$ 1,142

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 16 April 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

Sat 20/9

7:10 p.m.-12:15 p.m.

2 stops17h 05m

Key West

Wed 1/10

8:45 a.m.-12:35 a.m.

1 stop15h 50m

C$ 598

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 31/5

1:15 p.m.-6:05 p.m.

2 stops28h 50m

Key West

Sat 7/6

8:45 a.m.-1:55 p.m.

2 stops29h 10m

C$ 640

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 31/5

7:00 a.m.-5:30 p.m.

1 stop10h 30m

Key West

Sat 7/6

6:25 p.m.-11:54 p.m.

1 stop5h 29m

C$ 825

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 20/9

2:35 p.m.-1:34 p.m.

1 stop22h 59m

Key West

Wed 1/10

3:01 p.m.-10:45 p.m.

1 stop7h 44m

C$ 837

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/4

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

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key West ranges from 38.0 - 170.0 mm per month. September is typically the wettest month, when rainfall can reach 170.0 mm. February is typically the driest time to visit Key West when rainfall is around 38.0 mm.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.0 C).

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated 16 April 2025.
Delta
8.0
Very good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
United Airlines
7.4
Good
8,665 reviews
Delta
8.0
Very good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.

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. 2 airlines have flights to Key West from Montreal on a regular basis.

  • What are the cheapest airlines flying from Montreal to Key West round-trip?

    Our cheapest airline available from Montreal to Key West is United Airlines. Our recent data shows that you can find tickets from as low as C$ 598 on this airline. Additional options worth looking into are Delta and American Airlines, starting at C$ 825 and C$ 837 round-trip. These flights start at 21% lower than the current average price 3 months from now.

  • 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

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Top 2 airlines flying from Montreal to Key West

Discover the top 2 airlines that operate flights from Montreal to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 16 April 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 822AverageC$ 938FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 894AverageC$ 1,111FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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