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Flights from Montreal to Key West

Cheapest airlines flights from Montreal to Key West

You can pick from 1 carriers that fly from Montreal to Key West including Air Canada, , , with Air Transat serving cheapest ticket on this route.
Air Canada logo Air Canada
Airlines are determined based on actual purchased flight tickets from Montreal to Key West according to previous 12 months data from Trip.com.

Search cheap flights from Montreal to Key West in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$293, and round-trip tickets start at US$580.

      • YUL 06:00
        9h 17m
        1 stop
        EYW 15:17
        Montreal - Key West | Sun, Feb 8 | United Airlines
        EYW 14:25
        7h 17m
        1 stop
        YUL 21:42
        Key West - Montreal | Wed, Feb 11 | United Airlines
        US$580 US$864
        33% OFF
        33% OFF
        US$864 US$580
      • YUL 07:00
        7h 13m
        1 stop
        EYW 14:13
        Montreal - Key West | Mon, Jan 5 | United Airlines
        EYW 14:25
        7h 17m
        1 stop
        YUL 21:42
        Key West - Montreal | Mon, Jan 12 | United Airlines
        US$589 US$864
        32% OFF
        32% OFF
        US$864 US$589
      • YUL 06:00
        9h 17m
        1 stop
        EYW 15:17
        Montreal - Key West | Wed, Jan 14 | United Airlines
        EYW 14:25
        7h 17m
        1 stop
        YUL 21:42
        Key West - Montreal | Wed, Jan 21 | United Airlines
        US$590 US$864
        32% OFF
        32% OFF
        US$864 US$590
      • YUL 07:00
        7h 13m
        1 stop
        EYW 14:13
        Montreal - Key West | Thu, Jan 1 | United Airlines
        EYW 14:25
        7h 17m
        1 stop
        YUL 21:42
        Key West - Montreal | Thu, Jan 8 | United Airlines
        US$593
        31% OFF
        US$864 US$593
      • YUL 15:50
        20h 45m
        1 stop
        EYW 12:35
        Montreal - Key West | Mon, Jan 26 | American Airlines
        EYW 16:01
        23h 7m
        1 stop
        YUL 15:08
        Key West - Montreal | Mon, Feb 2 | American Airlines
        US$609
        30% OFF
        US$864 US$609
      • YUL 07:00
        10h 2m
        1 stop
        EYW 17:02
        Montreal - Key West | Mon, Dec 22 | United Airlines
        EYW 17:56
        27h 46m
        1 stop
        YUL 21:42
        Key West - Montreal | Mon, Dec 29 | United Airlines
        US$615
        28% OFF
        US$864 US$615
      • YUL 07:08
        15h 36m
        1 stop
        EYW 22:44
        Montreal - Key West | Tue, Dec 23 | American Airlines
        EYW 08:00
        14h 39m
        1 stop
        YUL 22:39
        Key West - Montreal | Tue, Dec 30 | American Airlines
        US$625
        28% OFF
        US$864 US$625
      • YUL 07:00
        7h 13m
        1 stop
        EYW 14:13
        Montreal - Key West | Fri, Dec 19 | United Airlines
        EYW 15:09
        6h 33m
        1 stop
        YUL 21:42
        Key West - Montreal | Tue, Dec 23 | United Airlines
        US$633
        27% OFF
        US$864 US$633
      • YUL 06:00
        9h 17m
        1 stop
        EYW 15:17
        Montreal - Key West | Mon, Jan 26 | United Airlines
        EYW 14:25
        7h 17m
        1 stop
        YUL 21:42
        Key West - Montreal | Mon, Feb 2 | United Airlines
        US$634
        27% OFF
        US$864 US$634
      • YUL 07:00
        10h 13m
        1 stop
        EYW 17:13
        Montreal - Key West | Mon, Jan 5 | WestJet
        EYW 18:08
        5h 42m
        1 stop
        YUL 23:50
        Key West - Montreal | Mon, Jan 12 | WestJet
        US$640
        26% OFF
        US$864 US$640
      • YMQ 13:00
        17h 25m
        1 stop
        EYW Invalid Date
        Montreal - Key West | Thu, Dec 18 | Normal Airline
        EYW 15:00
        6h
        Nonstop
        YMQ 16:00
        Key West - Montreal | Sat, Dec 20 | Normal Airline
        Find More Flights
        Find More Flights
      • YUL 16:35
        21h 50m
        1 stop
        EYW 14:25
        Montreal - Key West | Mon, Dec 22 | Air Transat
        US$293 US$454
        36% OFF
        36% OFF
        US$454 US$293
      • YUL 19:25
        19h
        1 stop
        EYW 14:25
        Montreal - Key West | Mon, Dec 22 | Air Canada
        US$310 US$454
        32% OFF
        32% OFF
        US$454 US$310
      • YUL 07:00
        7h 13m
        1 stop
        EYW 14:13
        Montreal - Key West | Sun, Jan 4 | United Airlines
        US$325 US$454
        28% OFF
        28% OFF
        US$454 US$325
      • YUL 06:00
        9h 17m
        1 stop
        EYW 15:17
        Montreal - Key West | Wed, Jan 7 | United Airlines
        US$326
        28% OFF
        US$454 US$326
      • YUL 06:00
        9h 17m
        1 stop
        EYW 15:17
        Montreal - Key West | Sat, Jan 10 | United Airlines
        US$327
        28% OFF
        US$454 US$327
      • YUL 06:00
        9h 17m
        1 stop
        EYW 15:17
        Montreal - Key West | Mon, Jan 12 | United Airlines
        US$327
        28% OFF
        US$454 US$327
      • YUL 07:08
        15h 36m
        1 stop
        EYW 22:44
        Montreal - Key West | Mon, Dec 22 | American Airlines
        US$329
        28% OFF
        US$454 US$329
      • YUL 07:08
        15h 36m
        1 stop
        EYW 22:44
        Montreal - Key West | Sun, Dec 21 | American Airlines
        US$329
        28% OFF
        US$454 US$329
      • YUL 06:00
        9h 17m
        1 stop
        EYW 15:17
        Montreal - Key West | Wed, Jan 28 | United Airlines
        US$332
        27% OFF
        US$454 US$332
      • YUL 14:26
        8h 18m
        1 stop
        EYW 22:44
        Montreal - Key West | Sat, Dec 20 | American Airlines
        US$336
        26% OFF
        US$454 US$336
      • YMQ 13:00
        17h 25m
        1 stop
        EYW Invalid Date
        Montreal - Key West | Thu, Dec 18 | Normal Airline
        Find More Flights
        Find More Flights

Displayed flight fares from Montreal to Key West are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Montreal to Key West Flight Details

The distance between Montreal and Key West is about 2,444.78 km. Based on Trip.com's latest data, travel demand is highest in August. The off-season for travel is October.

Cheapest one-way flight priceUS$293
Cheapest return ticket priceUS$580
Cheapest monthOctober
Peak season for travelAugust
Flight distance2,444.78 km
Popular airlineAir Canada
Flight statistics for the Montreal–Key West route are based on aggregated booking data from Trip.com over the past 12 months.

When is the cheapest time to book flights from Montreal to Key West?

The cheapest time to fly from Montreal to Key West: Dec 21 to Dec 28 — one-way prices start at US$292.

Cheapest flights
From price
Search
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
  • 18
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Montreal to Key West (YMQ-EYW)?

    Based on Trip.com data, Air Transat offers one-way fares as low as US$293 on Cheapest nonstop routes (e.g. YUL to EYW on Mon, Dec 22), while United Airlines offers Cheapest nonstop round-trips from US$580 departing on Sun, Feb 8 and returning on Wed, Feb 11.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Montreal to Key West is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Montreal to Key West, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Dec 22, with one-way flights priced at just US$293.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Transat.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Key West travel is around August.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Montreal to Key West is October, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Montreal to Key West on December 22, 2025 with United Airlines, with prices starting at US$614.
  • The time difference between Key West and Montreal is 0h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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