HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montreal

$160+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — YMQ
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key Largo to Montreal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Key Largo to Montreal are usually found in February or March, booked 42 days in advance, depart on a Thursday or Friday and return on a Sunday

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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$313
(Kiwi.com)

One-way from

$160
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$394
Provider with most accurate pricing for Miami-Montreal (YMQ) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Montreal (YMQ) flights.
Search Deals
From Key Largo to Montreal (YMQ)
Search Deals
One-way flight from Key Largo to Montreal (YMQ)
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Thu 12/118:21 amMIA - YUL
1 stop8h 04mMultiple Airlines
Sun 12/146:45 amYUL - MIA
2 stops8h 04mMultiple Airlines
Deal found 11/2$313
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Thu 12/49:03 pmMIA - YUL
1 stop19h 22mMultiple Airlines
Wed 12/105:10 pmYUL - MIA
1 stop16h 12mMultiple Airlines
Deal found 11/2$327
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/39:03 pmMIA - YUL
1 stop19h 22mMultiple Airlines
Wed 12/104:00 pmYUL - MIA
2 stops17h 22mMultiple Airlines
Deal found 11/3$329
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Mon 12/222:10 pmMIA - YUL
1 stop8h 15mPorter Airlines
Sun 1/46:45 amYUL - MIA
1 stop6h 24mPorter Airlines
Deal found 11/2$335
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Wed 12/312:10 pmMIA - YUL
1 stop8h 10mPorter Airlines
Sun 1/46:45 amYUL - MIA
1 stop6h 24mPorter Airlines
Deal found 11/2$337
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 12/232:10 pmMIA - YUL
1 stop8h 10mPorter Airlines
Sun 1/46:45 amYUL - MIA
1 stop6h 24mPorter Airlines
Deal found 11/2$338
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:26 pmMIA - YUL
2 stops10h 19mMultiple Airlines
Tue 12/95:10 pmYUL - MIA
1 stop16h 55mMultiple Airlines
Deal found 11/3$339
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Sat 12/139:03 pmMIA - YUL
1 stop19h 22mMultiple Airlines
Thu 1/111:25 amYUL - MIA
2 stops33h 12mMultiple Airlines
Deal found 11/2$341
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/1411:31 amMIA - YUL
2 stops31h 14mMultiple Airlines
Sat 11/226:45 amYUL - MIA
1 stop6h 24mMultiple Airlines
Deal found 11/1$345
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:26 pmMIA - YUL
2 stops10h 19mMultiple Airlines
Mon 12/86:45 amYUL - MIA
1 stop6h 24mMultiple Airlines
Deal found 11/3$346

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 November 3, 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

Sat 12/6

9:38 am-12:30 am

2 stops14h 52m

Montreal Pierre Elliott Trudeau Intl

Mon 12/8

6:45 am-1:09 pm

1 stop6h 24m

$365

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Mon 1/26

7:50 pm-11:29 pm

Nonstop3h 39m

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

7:00 am-11:20 am

Nonstop4h 20m

$409

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Thu 12/4

1:20 pm-4:59 pm

Nonstop3h 39m

Montreal Pierre Elliott Trudeau Intl

Mon 12/8

6:30 pm-10:29 pm

Nonstop3h 59m

$409

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Thu 11/13

12:23 pm-9:17 pm

1 stop8h 54m

Montreal Pierre Elliott Trudeau Intl

Wed 11/19

6:30 pm-10:29 pm

Nonstop3h 59m

$419

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Wed 12/3

12:50 pm-7:48 pm

1 stop6h 58m

Montreal Pierre Elliott Trudeau Intl

Wed 12/10

8:35 am-12:34 pm

Nonstop3h 59m

$419

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Fri 11/14

7:15 am-1:28 pm

1 stop6h 13m

Montreal Pierre Elliott Trudeau Intl

Mon 11/17

6:30 pm-10:29 pm

Nonstop3h 59m

$419

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Fri 12/5

6:00 am-9:42 pm

1 stop15h 42m

Montreal Pierre Elliott Trudeau Intl

Mon 12/8

6:30 pm-10:29 pm

Nonstop3h 59m

$419

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Wed 11/19

12:51 pm-7:48 pm

1 stop6h 57m

Montreal Pierre Elliott Trudeau Intl

Sun 11/23

6:30 pm-10:29 pm

Nonstop3h 59m

$419

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Sat 11/15

6:05 am-9:42 pm

1 stop15h 37m

Montreal Pierre Elliott Trudeau Intl

Mon 11/17

6:30 pm-10:29 pm

Nonstop3h 59m

$419

MiamiMontreal

MIA - YUL

MIAYUL

Miami

Thu 11/13

12:51 pm-7:48 pm

1 stop6h 57m

Montreal Pierre Elliott Trudeau Intl

Mon 11/17

6:30 pm-10:29 pm

Nonstop3h 59m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 20 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 October 31, 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 42 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, April is the cheapest month in which you can book a flight from Key Largo to Montreal (average of $39). Flying from Key Largo to Montreal in July is currently the most expensive (average of $118). 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 November 3, 2025.

It’s optimal to fly from Key Largo to Montreal in the afternoon. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the morning.

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 Tuesday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 3, 2025.
Read reviews from past customers who have flown Porter Airlines, Delta, and American Airlines from Key Largo to Montreal. 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
385 reviews

Comfort

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
385 reviews
Porter Airlines
8.0
Very good
385 reviews

Comfort

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Delta
7.9
Good
8,002 reviews
Porter Airlines
8.0
Very good
385 reviews

Comfort

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
American Airlines
7.2
Good
11,038 reviews
Porter Airlines
8.0
Very good
385 reviews

Comfort

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
WestJet
7.2
Good
3,153 reviews
Porter Airlines
8.0
Very good
385 reviews

Comfort

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,398 reviews
Porter Airlines
8.0
Very good
385 reviews

Comfort

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

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.

  • How long is the flight from Key Largo to Montreal?

    Departing from Key Largo to Montreal will take you 3h 39m. Key Largo and Montreal are separated by a distance of 1405 mi. Most flights are nonstop.

  • 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 (87%), Air Canada (67%) and Air Canada Rouge (63%).

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

    While on average a flight from Key Largo to Montreal is generally $752, our data shows the cheapest flight currently is $160. When looking at the most popular route, (Miami - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $313 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, April is the cheapest month in which you can book a flight from Key Largo to Montreal (average of $39). Flying from Key Largo to Montreal in July is currently the most expensive (average of $118). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Key Largo to Montreal

See prices for flight routes from nearby airports that may be better suited for you.
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
Miami to Pierre Elliott Trudeau Intl flights
Orlando to Pierre Elliott Trudeau Intl flights
Tampa to Pierre Elliott Trudeau Intl flights
Tampa to Québec City flights
Fort Lauderdale to Québec City flights
West Palm Beach to Pierre Elliott Trudeau Intl flights
Miami to Québec City flights
Fort Lauderdale to Ottawa flights
Fort Myers to Pierre Elliott Trudeau Intl flights
Orlando to Québec City flights
Jacksonville to Pierre Elliott Trudeau Intl flights
Orlando to Ottawa flights
Sarasota to Pierre Elliott Trudeau Intl flights
Tampa to Ottawa flights
Miami to Ottawa flights
West Palm Beach to Québec City flights
Fort Myers to Ottawa flights
Pensacola to Pierre Elliott Trudeau Intl flights
Sarasota to Ottawa flights
Daytona Beach to Pierre Elliott Trudeau Intl flights
West Palm Beach to Ottawa flights
Tallahassee to Pierre Elliott Trudeau Intl flights
Jacksonville to Québec City flights
Gainesville to Pierre Elliott Trudeau Intl flights
Valparaiso to Pierre Elliott Trudeau Intl flights
Panama City to Pierre Elliott Trudeau Intl flights
Pensacola to Ottawa flights
Melbourne to Pierre Elliott Trudeau Intl flights
Pensacola to Québec City flights
Jacksonville to Ottawa flights
Melbourne to Ottawa flights
Tallahassee to Québec City flights
Tallahassee to Ottawa flights
Fort Lauderdale to Rouyn-Noranda flights
Tampa to Rouyn-Noranda flights

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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapest$32Average$201FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$68Average$313FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$78Average$211FlexibilityNo cancel feeOn-time52%
Air TransatCheapest$95Average$280FlexibilityNo cancel feeOn-time50%
Air CanadaCheapest$98Average$361FlexibilityNo cancel feeOn-time67%
DeltaCheapest$131Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$212Average$393FlexibilityNo cancel feeOn-time71%
WestJetCheapest$324Average$463FlexibilityNo cancel feeOn-time60%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.