$118+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — YMQ
Mar 6 — Mar 131
1 adult, Economy
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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 53 days in advance, depart on a Friday or Thursday and return on a Sunday
Cheap flight deals from Key Largo to Montreal
Cheapest
Best
Last-minute
One-way
Cheapest flights from Key Largo to MontrealExplore 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 February 4, 2026.
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 February 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/253:25 pm
MIA
- YUL
2 stops26h 20m
Multiple Airlines
Mon 3/307:00 am
YUL
- MIA
1 stop7h 10m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$308
This Booking.com deal was found by Cheapflights users on 2/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:15 pm
MIA
- YUL
Nonstop3h 39m
Air Canada
Wed 3/257:40 am
YUL
- MIA
Nonstop3h 59m
Air Canada
Deal found 2/2![Air Canada logo]()
$320
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:20 am
MIA
- YUL
2 stops15h 25m
Multiple Airlines
Fri 4/176:45 am
YUL
- MIA
2 stops22h 23m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$327
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:52 pm
MIA
- YUL
2 stops21h 28m
Multiple Airlines
Sat 3/78:20 am
YUL
- MIA
1 stop15h 39m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$336
This Booking.com deal was found by Cheapflights users on 2/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:15 pm
MIA
- YUL
Nonstop3h 39m
Air Canada
Thu 3/191:30 pm
YUL
- MIA
Nonstop3h 59m
Air Canada
Deal found 2/3![Air Canada logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Tue 4/1412:12 pm
MIA
- YUL
1 stop5h 23m
WestJet
Fri 4/176:45 pm
YUL
- MIA
1 stop6h 09m
WestJet
Deal found 2/3![WestJet logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Mon 3/26:00 am
MIA
- YUL
1 stop5h 25m
WestJet
Sun 3/86:45 pm
YUL
- MIA
1 stop6h 07m
WestJet
Deal found 2/3![WestJet logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 6/911:40 am
MIA
- YUL
1 stop7h 13m
WestJet
Sat 8/17:00 am
YUL
- MIA
1 stop11h 54m
WestJet
Deal found 2/2![WestJet logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 6/310:35 am
MIA
- YUL
1 stop7h 05m
WestJet
Thu 8/66:15 pm
YUL
- MIA
1 stop6h 41m
WestJet
Deal found 2/2![WestJet logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/36:00 am
MIA
- YUL
1 stop5h 25m
WestJet
Tue 3/107:30 pm
YUL
- MIA
2 stops15h 06m
WestJet
Deal found 2/2![WestJet logo]()
$343
Best flights from Key Largo to MontrealDiscover carefully curated flight deals from Key Largo to Montreal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
Discover carefully curated flight deals from Key Largo to Montreal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/49:24 am
MIA
- YUL
1 stop9h 11m
WestJet
Wed 3/112:29 pm
YUL
- MIA
1 stop6h 53m
WestJet
Deal found 2/3![WestJet logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/126:54 pm
MIA
- YUL
2 stops27h 51m
Multiple Airlines
Mon 3/162:29 pm
YUL
- MIA
1 stop6h 53m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$352
This Air Canada deal was found by Cheapflights users on 2/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:25 pm
MIA
- YUL
Nonstop3h 39m
Air Canada
Sun 3/297:40 am
YUL
- MIA
Nonstop3h 47m
Air Canada
Deal found 2/3![Air Canada logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Tue 3/247:00 am
MIA
- YUL
1 stop6h 37m
WestJet
Tue 3/246:45 pm
YUL
- MIA
1 stop6h 07m
WestJet
Deal found 2/1![WestJet logo]()
$341
This Trip.com deal was found by Cheapflights users on 2/3. 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 3/2712:25 pm
MIA
- YUL
Nonstop3h 39m
Multiple Airlines
Sun 4/57:00 am
YUL
- MIA
1 stop10h 56m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/126:00 am
MIA
- YUL
1 stop5h 37m
Multiple Airlines
Sun 3/158:00 am
YUL
- MIA
2 stops33h 53m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$361
This Air Canada deal was found by Cheapflights users on 2/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/512:25 pm
MIA
- YUL
Nonstop3h 39m
Air Canada
Mon 3/91:10 pm
YUL
- MIA
1 stop7h 16m
Air Canada
Deal found 2/3![Air Canada logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Mon 3/26:00 am
MIA
- YUL
1 stop5h 25m
WestJet
Fri 3/69:29 am
YUL
- MIA
1 stop9h 25m
WestJet
Deal found 2/3![WestJet logo]()
$380
This FlightHub deal was found by Cheapflights users on 2/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:00 am
MIA
- YUL
1 stop11h 31m
WestJet
Mon 4/67:00 am
YUL
- MIA
1 stop10h 56m
WestJet
Deal found 2/3![WestJet logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/79:24 am
MIA
- YUL
1 stop22h 06m
WestJet
Mon 3/96:45 pm
YUL
- MIA
1 stop6h 07m
WestJet
Deal found 2/2![WestJet logo]()
$399
Last-minute flights from Key Largo to MontrealDiscover last-minute flight deals from Key Largo to Montreal. Data last updated February 4, 2026 and is based on user searches.
Discover last-minute flight deals from Key Largo to Montreal. Data last updated February 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/97:45 pm
MIA
- YUL
Nonstop3h 39m
American Airlines
Mon 2/167:00 am
YUL
- MIA
Nonstop4h 13m
American Airlines
Deal found 2/3![American Airlines logo]()
$405
This Air Canada deal was found by Cheapflights users on 2/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/107:25 am
MIA
- YUL
1 stop6h 57m
Air Canada
Tue 2/105:10 pm
YUL
- MIA
1 stop7h 06m
Air Canada
Deal found 2/2![Air Canada logo]()
$404
This Air Canada deal was found by Cheapflights users on 2/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:00 am
MIA
- YUL
Nonstop3h 39m
Air Canada
Thu 2/126:30 pm
YUL
- MIA
Nonstop3h 59m
Air Canada
Deal found 2/2![Air Canada logo]()
$398
This American Airlines deal was found by Cheapflights users on 2/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:07 am
MIA
- YUL
1 stop6h 38m
American Airlines
Mon 2/167:00 am
YUL
- MIA
Nonstop4h 13m
American Airlines
Deal found 2/3![American Airlines logo]()
$401
This Air Canada deal was found by Cheapflights users on 2/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/136:15 pm
MIA
- YUL
Nonstop3h 39m
Air Canada
Mon 2/166:30 pm
YUL
- MIA
Nonstop3h 59m
Air Canada
Deal found 2/3![Air Canada logo]()
$376
This Air Canada deal was found by Cheapflights users on 2/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/136:15 pm
MIA
- YUL
Nonstop3h 39m
Air Canada
Tue 2/177:00 am
YUL
- MIA
1 stop8h 21m
Air Canada
Deal found 2/2![Air Canada logo]()
$390
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Fri 2/1310:00 pm
MIA
- YUL
1 stop15h 45m
American Airlines
Tue 2/177:30 am
YUL
- MIA
1 stop14h 22m
American Airlines
Deal found 2/2![American Airlines logo]()
$426
This American Airlines deal was found by Cheapflights users on 2/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/146:40 am
MIA
- YUL
1 stop5h 42m
American Airlines
Mon 2/167:00 am
YUL
- MIA
Nonstop4h 13m
American Airlines
Deal found 2/4![American Airlines logo]()
$410
One-way flights from Key Largo to MontrealSearch for one-way flight options from Key Largo to Montreal. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
Search for one-way flight options from Key Largo to Montreal. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:20 am
MIA
- YUL
2 stops15h 25m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Tue 2/249:18 pm
MIA
- YUL
2 stops19h 04m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 2/2512:10 pm
MIA
- YUL
2 stops28h 12m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 2/4. 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 3/102:06 pm
MIA
- YUL
3 stops26h 24m
Multiple Airlines
Deal found 2/4![Multiple Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/35:55 pm
MIA
- YUL
2 stops22h 35m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/412:52 pm
MIA
- YUL
2 stops26h 18m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Thu 2/265:05 am
MIA
- YUL
2 stops11h 17m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/612:52 pm
MIA
- YUL
2 stops9h 53m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Tue 3/2410:20 pm
MIA
- YUL
2 stops42h 00m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$143
Find 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 February 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $308 (Kiwi.com) |
One-way from | $118 (Mytrip) |
Popular in | December |
Cheapest in | February |
Average price | $310 |
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 February 4, 2026.
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
Wed 3/4
9:24 am-6:35 pm
1 stop9h 11m
Montreal Pierre Elliott Trudeau Intl
Wed 3/11
2:29 pm-9:22 pm
1 stop6h 53m
$339
MiamiMontreal
MIA - YUL
MIAYUL
Miami
Tue 3/24
7:00 am-1:37 pm
1 stop6h 37m
Montreal Pierre Elliott Trudeau Intl
Tue 3/24
6:45 pm-12:52 am
1 stop6h 07m
$341
MiamiMontreal
MIA - YUL
MIAYUL
Miami
Thu 3/12
6:54 pm-10:45 pm
2 stops27h 51m
Montreal Pierre Elliott Trudeau Intl
Mon 3/16
2:29 pm-9:22 pm
1 stop6h 53m
$352
MiamiMontreal
MIA - YUL
MIAYUL
Miami
Fri 3/27
12:25 pm-4:04 pm
Nonstop3h 39m
Montreal Pierre Elliott Trudeau Intl
Sun 4/5
7:00 am-5:56 pm
1 stop10h 56m
$356
MiamiMontreal
MIA - YUL
MIAYUL
Miami
Thu 3/12
6:00 am-11:37 am
1 stop5h 37m
Montreal Pierre Elliott Trudeau Intl
Sun 3/15
8:00 am-5:53 pm
2 stops33h 53m
$361
MiamiMontreal
MIA - YUL
MIAYUL
Miami
Tue 3/24
12:25 pm-4:04 pm
Nonstop3h 39m
Montreal Pierre Elliott Trudeau Intl
Sun 3/29
7:40 am-11:27 am
Nonstop3h 47m
$376
MiamiMontreal
MIA - YUL
MIAYUL
Miami
Mon 3/2
6:00 am-11:25 am
1 stop5h 25m
Montreal Pierre Elliott Trudeau Intl
Fri 3/6
9:29 am-6:54 pm
1 stop9h 25m
$380
MiamiMontreal
MIA - YUL
MIAYUL
Miami
Fri 4/3
6:00 am-5:31 pm
1 stop11h 31m
Montreal Pierre Elliott Trudeau Intl
Mon 4/6
7:00 am-5:56 pm
1 stop10h 56m
$391
MiamiMontreal
MIA - YUL
MIAYUL
Miami
Thu 3/5
12:25 pm-4:04 pm
Nonstop3h 39m
Montreal Pierre Elliott Trudeau Intl
Mon 3/9
1:10 pm-8:26 pm
1 stop7h 16m
$399
MiamiMontreal
MIA - YUL
MIAYUL
Miami
Sat 3/7
9:24 am-7:30 am
1 stop22h 06m
Montreal Pierre Elliott Trudeau Intl
Mon 3/9
6:45 pm-12:52 am
1 stop6h 07m
$399
Showing 1-10 of 21 results
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.
MIA-YUL
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
KE9-YMQ
MIA-YUL
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 January 30, 2026.
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 53 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 $41). 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 February 4, 2026.
It’s optimal to fly from Key Largo to Montreal in the afternoon. By choosing this option you can save up to 38% 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 January 31, 2026.
Travelers seeking maximum savings on their Key Largo to Montreal flight should consider departing on Thursday evenings 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.
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 February 4, 2026.
The most flights from KE9 to YMQ are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
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 February 4, 2026.
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.
Entertainment
6.9
Food
7.5
Boarding
8.2
Crew
8.6
Overall
7.9
Comfort
7.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Entertainment
6.9
Food
7.5
Boarding
8.2
Crew
8.6
Overall
7.9
Comfort
7.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Entertainment
6.9
Food
7.5
Boarding
8.2
Crew
8.6
Overall
7.9
Comfort
7.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Entertainment
6.9
Food
7.5
Boarding
8.2
Crew
8.6
Overall
7.9
Comfort
7.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Entertainment
6.9
Food
7.5
Boarding
8.2
Crew
8.6
Overall
7.9
Comfort
7.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Entertainment
6.9
Food
7.5
Boarding
8.2
Crew
8.6
Overall
7.9
Comfort
7.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Related info for your journey
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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 February 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$64 | Average$203 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$64 | Average$259 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$84 | Average$186 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$86 | Average$257 | FlexibilityNo cancel fee | On-time50% | |
| Cheapest$91 | Average$368 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$120 | Average$296 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$122 | Average$342 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$212 | Average$399 | FlexibilityNo cancel fee | On-time71% |