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$117+ Cheap flights from Key Largo, FL to Montreal (YMQ)

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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — YMQ
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Montreal are usually found in April or September, booked 24 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Key Largo to Montreal

Keep the following information in mind while searching for Key Largo to Montreal flight deals. Data was last updated April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$298
(Kiwi.com)

One-way from

$117
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$261
Provider with most accurate pricing for Miami-Montreal (YMQ) flight deals.
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Provider most trusted by Cheapflights users for Miami-Montreal (YMQ) flights.
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From Key Largo to Montreal (YMQ)
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One-way flight from Key Largo to Montreal (YMQ)
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Highest demand for flights based on searches. 11% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 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 Key Largo to Montreal

Cheapest flights from Key Largo to Montreal
Explore the most affordable flight options available from Key Largo to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/116:05 pmMIA - YUL
Nonstop3h 42mAir Canada
Sun 4/2011:30 amYUL - MIA
2 stops12h 24mAir Canada
Deal found 4/3$264
This Trip.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/112:05 pmMIA - YUL
1 stop10h 30mPorter Airlines
Sun 4/206:45 amYUL - MIA
1 stop6h 20mPorter Airlines
Deal found 4/3$284
This Kiwi.com deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/178:45 amMIA - YUL
1 stop9h 10mMultiple Airlines
Tue 6/248:55 amYUL - MIA
2 stops11h 04mMultiple Airlines
Deal found 4/4$298
This Delta deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1512:38 pmMIA - YUL
1 stop10h 50mDelta
Tue 5/276:05 amYUL - MIA
1 stop10h 35mDelta
Deal found 4/2$329
This American Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/127:40 pmMIA - YUL
Nonstop3h 39mAmerican Airlines
Sat 5/247:00 amYUL - MIA
Nonstop3h 40mAmerican Airlines
Deal found 4/2$340
This Kiwi.com deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/258:10 amMIA - YUL
1 stop15h 49mWestJet
Fri 5/306:45 pmYUL - MIA
1 stop5h 52mWestJet
Deal found 4/2$377
This United Airlines deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1212:20 pmMIA - YUL
1 stop9h 09mUnited Airlines
Thu 4/179:15 amYUL - MIA
1 stop13h 29mUnited Airlines
Deal found 4/4$441

Cheapflights Fare Finder

Customize your flight search to find flights from Key Largo to Montreal 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 2,558,603 searches. Data last updated April 4, 2025.
Use the filters below to find and compare flights from Key Largo to Montreal that are best for you.

Fly from

Key Largo

Fly to

Montreal

Route

Depart

Return

Price

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Tue 6/17

8:45 am-5:55 pm

1 stop9h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 6/24

8:55 am-7:59 pm

2 stops11h 04m

$298

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Thu 5/8

7:55 am-11:37 am

Nonstop3h 42m

Montreal Pierre Elliott Trudeau Intl

Mon 5/12

9:30 am-1:18 pm

Nonstop3h 48m

$308

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Thu 4/17

2:05 pm-12:35 am

1 stop10h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 4/19

6:45 am-1:05 pm

1 stop6h 20m

$313

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Tue 4/15

8:10 am-4:52 pm

1 stop8h 42m

Montreal Pierre Elliott Trudeau Intl

Wed 5/28

6:05 am-4:40 pm

1 stop10h 35m

$329

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Wed 4/16

6:22 am-2:24 pm

1 stop8h 02m

Montreal Pierre Elliott Trudeau Intl

Thu 5/29

6:15 am-3:14 pm

1 stop8h 59m

$333

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Wed 4/23

8:38 am-10:54 pm

1 stop14h 16m

Montreal Pierre Elliott Trudeau Intl

Fri 4/25

7:00 am-10:40 am

Nonstop3h 40m

$340

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Thu 5/22

3:59 pm-12:37 am

2 stops8h 38m

Montreal Pierre Elliott Trudeau Intl

Mon 5/26

6:00 am-11:52 am

1 stop5h 52m

$348

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Tue 6/17

8:45 am-5:55 pm

1 stop9h 10m

$117

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Fri 4/11

6:05 pm-9:47 pm

Nonstop3h 42m

$127

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Wed 5/7

7:00 am-4:04 pm

1 stop9h 04m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 14 results
1
2

Best time to book a flight from Key Largo to Montreal

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

How far ahead should I book a flight from Key Largo to Montreal?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Montreal. Price data was last updated on March 28, 2025.

The price you pay for your flight from Key Largo to Montreal may vary depending on when you book. For the best chance of a lower fare, look to book 24 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Key Largo to Montreal?

Currently, January is the cheapest month in which you can book a flight from Key Largo to Montreal (average of $270). Flying from Key Largo to Montreal in July is currently the most expensive (average of $409). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KE9 to YMQ?

Find hourly flight availability from Key Largo to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 4, 2025.

When flying from Key Largo to Montreal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Key Largo to Montreal?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Montreal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Key Largo to Montreal flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Montreal

Explore weekly flight availability from Key Largo to Montreal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 4, 2025.

The most flights from KE9 to YMQ are scheduled on a Friday (8 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Montreal by month

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

In terms of precipitation, rainfall in Montreal ranges from 2.5 - 4.4 inches per month. August is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Montreal when rainfall is around 2.5 in.

Temperature in Montreal by month

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

If weather is an important factor for your trip to Montreal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing Montreal

Get insights into the airlines that provide service to Montreal. 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 Montreal. Reviews last updated April 4, 2025.
Peruse reviews from past customers who have flown with Delta, Porter Airlines and United Airlines from Key Largo to Montreal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,900 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Delta
8.0
Very good
7,900 reviews
Delta
8.0
Very good
7,900 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Porter Airlines
7.9
Good
279 reviews
Delta
8.0
Very good
7,900 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
United Airlines
7.4
Good
8,618 reviews
Delta
8.0
Very good
7,900 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,900 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
WestJet
7.2
Good
2,795 reviews
Delta
8.0
Very good
7,900 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

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

  • What are the cheapest airlines to fly from Key Largo to Montreal one-way?

    $127 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $134 and $138, respectively.

  • What are the most reliable airlines from Key Largo to Montreal?

    The top 3 most reliable airlines when flying from Key Largo to Montreal are Avianca (71%), Air Canada (70%) and American Airlines (70%).

  • What are the cheapest flights from Key Largo to Montreal?

    While on average a flight from Key Largo to Montreal is generally $2,116, our data shows the cheapest flight currently is $128. When looking at the most popular route, (Miami - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $273 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Montreal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Key Largo to Montreal?

    Currently, January is the cheapest month in which you can book a flight from Key Largo to Montreal (average of $270). Flying from Key Largo to Montreal in July is currently the most expensive (average of $409). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 8 airlines flying from Key Largo to Montreal

Discover the top 8 airlines that operate flights from Key Largo to Montreal. 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 2,558,603 searches. Data last updated April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapest$41Average$181FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$64Average$100FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$81Average$246FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$85Average$361FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$103Average$317FlexibilityNo cancel feeOn-time50%
American AirlinesCheapest$143Average$399FlexibilityNo cancel feeOn-time71%
DeltaCheapest$257Average$358FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$324Average$459FlexibilityNo cancel feeOn-time60%

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