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Cheap flights from Montreal to Florida Keys from C$ 229

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 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — EYW
23 Aug — 30 Aug1
1 adult

Cheap flight deals from Montreal to Florida Keys

Keep the following information in mind while searching for Montreal to Florida Keys flight deals. Data was last updated 18 August 2025.

Round-trip from

C$ 348

One-way from

C$ 229

Popular in

December

Cheapest in

September

Average price

C$ 504
American Airlines
  • American Airlines
  • 3/9-3/9
  • 3 total stops
  • 25h 27m total
  • Montreal to Florida Keys
Search Deals
Air Canada
  • Air Canada
  • 20/1
  • Nonstop
  • 3h 59m total
  • Montreal to Florida Keys
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Montreal to Florida Keys

Cheapest flights from Montreal to Florida Keys
Explore the most affordable flight options available from Montreal to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.

Mon 20/109:30 a.m.YUL - MIA
Nonstop3h 50mAir Canada
Sat 25/109:45 p.m.MIA - YUL
1 stop10h 37mAir Canada
Deal found 18/8C$ 344
Sun 5/109:30 a.m.YUL - MIA
Nonstop3h 50mAir Canada
Sat 11/102:25 p.m.MIA - YUL
Nonstop3h 36mAir Canada
Deal found 18/8C$ 345
Wed 3/97:50 a.m.YUL - MIA
2 stops8h 45mAmerican Airlines
Wed 3/97:42 p.m.MIA - YUL
1 stop16h 42mAmerican Airlines
Deal found 17/8C$ 348
Wed 3/97:50 a.m.YUL - MIA
2 stops8h 45mAmerican Airlines
Thu 4/98:50 a.m.MIA - YUL
1 stop6h 43mAmerican Airlines
Deal found 18/8C$ 373
Fri 5/99:30 a.m.YUL - MIA
Nonstop3h 50mAir Canada
Fri 19/92:20 p.m.MIA - YUL
Nonstop3h 40mAir Canada
Deal found 15/8C$ 387
Sun 16/118:00 a.m.YUL - EYW
2 stops25h 51mMultiple Airlines
Sat 22/111:01 p.m.EYW - YUL
1 stop11h 29mMultiple Airlines
Deal found 17/8C$ 593
Fri 14/116:45 a.m.YUL - EYW
2 stops26h 16mMultiple Airlines
Sat 22/111:01 p.m.EYW - YUL
1 stop11h 29mMultiple Airlines
Deal found 17/8C$ 609
Tue 11/116:45 a.m.YUL - EYW
2 stops26h 26mMultiple Airlines
Sat 22/111:01 p.m.EYW - YUL
1 stop11h 29mMultiple Airlines
Deal found 17/8C$ 627
Sat 15/114:35 p.m.YUL - EYW
1 stop28h 11mMultiple Airlines
Sat 22/111:01 p.m.EYW - YUL
1 stop11h 29mMultiple Airlines
Deal found 17/8C$ 634
Thu 13/1110:35 a.m.YUL - EYW
2 stops21h 36mMultiple Airlines
Sat 22/111:01 p.m.EYW - YUL
1 stop11h 29mMultiple Airlines
Deal found 17/8C$ 655
Fri 14/119:25 a.m.YUL - EYW
2 stops28h 39mUnited Airlines
Fri 21/113:00 p.m.EYW - YUL
2 stops19h 20mUnited Airlines
Deal found 17/8C$ 717
Wed 12/114:55 p.m.YUL - EYW
2 stops26h 51mMultiple Airlines
Sat 22/111:01 p.m.EYW - YUL
1 stop11h 29mMultiple Airlines
Deal found 17/8C$ 767

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to Florida Keys 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 18 August 2025.
Use the filters below to find and compare flights from Montreal to Florida Keys that are best for you.

Fly from

Montreal

Fly to

Florida Keys

Route

Depart

Return

Price

MontrealMiami

YUL - MIA

YULMIA

Montreal Pierre Elliott Trudeau Intl

Fri 5/9

9:30 a.m.-1:20 p.m.

Nonstop3h 50m

Miami

Fri 19/9

2:20 p.m.-6:00 p.m.

Nonstop3h 40m

C$ 387

MontrealMiami

YUL - MIA

YULMIA

Montreal Pierre Elliott Trudeau Intl

Tue 10/2

1:30 p.m.-5:29 p.m.

Nonstop3h 59m

Miami

Tue 17/2

6:15 p.m.-9:54 p.m.

Nonstop3h 39m

C$ 397

MontrealMiami

YUL - MIA

YULMIA

Montreal Pierre Elliott Trudeau Intl

Wed 17/9

9:30 a.m.-1:20 p.m.

Nonstop3h 50m

Miami

Tue 23/9

11:50 a.m.-6:20 p.m.

1 stop6h 30m

C$ 399

MontrealMiami

YUL - MIA

YULMIA

Montreal Pierre Elliott Trudeau Intl

Tue 20/1

6:30 p.m.-10:29 p.m.

Nonstop3h 59m

Miami

Wed 21/1

12:45 p.m.-4:24 p.m.

Nonstop3h 39m

C$ 406

MontrealMiami

YUL - MIA

YULMIA

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

7:00 a.m.-11:05 a.m.

Nonstop4h 05m

Miami

Wed 18/2

6:55 a.m.-12:20 p.m.

1 stop5h 25m

C$ 430

MontrealMiami

YUL - MIA

YULMIA

Montreal Pierre Elliott Trudeau Intl

Tue 6/1

6:30 p.m.-10:29 p.m.

Nonstop3h 59m

Miami

Tue 13/1

8:00 a.m.-11:39 a.m.

Nonstop3h 39m

C$ 430

MontrealMiami

YUL - MIA

YULMIA

Montreal Pierre Elliott Trudeau Intl

Tue 3/2

6:30 p.m.-10:29 p.m.

Nonstop3h 59m

Miami

Thu 19/2

8:00 a.m.-11:39 a.m.

Nonstop3h 39m

C$ 430

MontrealMiami

YUL - MIA

YULMIA

Montreal Pierre Elliott Trudeau Intl

Sun 1/2

8:00 a.m.-11:59 a.m.

Nonstop3h 59m

Miami

Fri 6/2

8:00 a.m.-11:39 a.m.

Nonstop3h 39m

C$ 430

MontrealMiami

YUL - MIA

YULMIA

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

1:30 p.m.-5:29 p.m.

Nonstop3h 59m

Miami

Thu 19/2

12:45 p.m.-4:24 p.m.

Nonstop3h 39m

C$ 430

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sun 16/11

8:00 a.m.-9:51 a.m.

2 stops25h 51m

Key West

Sat 22/11

1:01 p.m.-12:30 a.m.

1 stop11h 29m

C$ 593

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/8

Showing 1-10 of 28 results
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Best time to book a flight from Montreal to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys 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 Florida Keys
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Florida Keys

Get insights into the airlines that provide service to Florida Keys. 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 Florida Keys. Reviews last updated 18 August 2025.
Read through reviews of airlines operating flights from Montreal to Florida Keys, such as Porter Airlines,United Airlines, andAmerican Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
333 reviews
Check prices

Entertainment

7.0

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
333 reviews
Porter Airlines
8.0
Very good
333 reviews
Check prices

Entertainment

7.0

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,925 reviews
Porter Airlines
8.0
Very good
333 reviews
Check prices

Entertainment

7.0

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
333 reviews
Check prices

Entertainment

7.0

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
3,018 reviews
Porter Airlines
8.0
Very good
333 reviews
Check prices

Entertainment

7.0

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
9,992 reviews
Porter Airlines
8.0
Very good
333 reviews
Check prices

Entertainment

7.0

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Related info for your journey

Find useful and relevant information for your journey from Montreal to Florida Keys. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montreal to Florida Keys?

    A quick flight from Montreal to Florida Keys can take about 3h 50m. Air Canada provides one of the quickest options available for as low as C$ 387. There are 2261 km between Montreal and Florida Keys. Generally, flights for this route are direct.

  • What are the cheapest airlines to fly from Montreal to Florida Keys one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as C$ 229. Users have also found prices from C$ 232 and C$ 466 on Porter Airlines and American Airlines, respectively.

  • Can I find deals for flights from Montreal to Florida Keys that include hotel bookings?

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

  • How can I find direct flights from Montreal to Florida Keys?

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

  • Can I find deals for business class flights from Montreal to Florida Keys?

    Yes. Cheapflights offers flight deals from Montreal to Florida Keys 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 Florida Keys

See prices for flight routes from nearby airports that may be better suited for you.
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Yes, Cheapflights offers price alerts on Montreal to Florida Keys flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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