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$120+ Cheap flights from Key Largo, FL to Cancún (CUN)

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — CUN
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Cancun are usually found in July or September, booked 50 days in advance, depart on a Monday or Sunday and return on a Thursday

Cheap flight deals from Key Largo to Cancún

Cheapest flights from Key Largo to Cancún
Explore the most affordable flight options available from Key Largo to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/64:01 pm
MIA
-
CUN
1 stop9h 35m
Multiple Airlines
Sat 3/141:05 pm
CUN
-
MIA
Nonstop2h 07m
Multiple Airlines
Deal found 2/12$255
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 2/204:01 pm
MIA
-
CUN
1 stop9h 35m
Volaris
Wed 2/254:18 am
CUN
-
MIA
1 stop9h 52m
Volaris
Deal found 2/10$256
This American Airlines deal was found by Cheapflights users on 2/11. 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 5/810:27 am
MIA
-
CUN
Nonstop2h 06m
American Airlines
Sat 5/1612:33 pm
CUN
-
MIA
Nonstop1h 52m
American Airlines
Deal found 2/11$259
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 2/224:01 pm
MIA
-
CUN
1 stop9h 35m
Volaris
Mon 2/234:18 am
CUN
-
MIA
1 stop9h 52m
Volaris
Deal found 2/10$261
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/34:01 pm
MIA
-
CUN
1 stop9h 35m
Volaris
Tue 3/104:18 am
CUN
-
MIA
1 stop9h 52m
Volaris
Deal found 2/12$262
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Sun 3/14:01 pm
MIA
-
CUN
1 stop9h 35m
Volaris
Sat 3/144:18 am
CUN
-
MIA
1 stop9h 52m
Volaris
Deal found 2/9$265
This Booking.com deal was found by Cheapflights users on 2/12. 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.
Mon 2/232:55 pm
MIA
-
CUN
1 stop21h 50m
Viva
Thu 2/2611:45 am
CUN
-
MIA
1 stop25h 40m
Viva
Deal found 2/12$266
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 2/234:01 pm
MIA
-
CUN
1 stop9h 35m
Volaris
Fri 2/274:18 am
CUN
-
MIA
1 stop9h 52m
Volaris
Deal found 2/12$267
This Mytrip deal was found by Cheapflights users on 2/11. 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.
Mon 2/162:55 pm
MIA
-
CUN
1 stop27h 50m
Viva
Sun 2/2211:45 am
CUN
-
MIA
1 stop25h 40m
Viva
Deal found 2/11$270
This Mytrip deal was found by Cheapflights users on 2/11. 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.
Fri 2/272:55 pm
MIA
-
CUN
1 stop8h 55m
Multiple Airlines
Sat 2/284:22 pm
CUN
-
MIA
1 stop8h 20m
Multiple Airlines
Deal found 2/11$271
This Booking.com deal was found by Cheapflights users on 2/10. 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.
Fri 2/272:55 pm
MIA
-
CUN
1 stop18h 40m
Multiple Airlines
Sun 3/110:01 am
CUN
-
MIA
1 stop6h 50m
Multiple Airlines
Deal found 2/10$272

Find flight deals from Key Largo to Cancún

Keep the following information in mind while searching for Key Largo to Cancún flight deals. Data was last updated February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$255
(Kiwi.com)

One-way from

$120
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$346
Provider with most accurate pricing for Miami-Cancun flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Cancun flights.
Search Deals
From Key Largo to Cancun
Search Deals
One-way flight from Key Largo to Cancun
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Cancún 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 13, 2026.
Use the filters below to find and compare flights from Key Largo to Cancún that are best for you.

Fly from

Key Largo

Fly to

Cancún

Route

Depart

Return

Price

MiamiCancún

MIA - CUN

MIACUN

Miami

Thu 3/5

9:40 am-11:50 am

Nonstop2h 10m

Cancun

Sun 3/8

1:05 pm-4:12 pm

Nonstop2h 07m

$273

MiamiCancún

MIA - CUN

MIACUN

Miami

Thu 2/26

9:40 am-11:50 am

Nonstop2h 10m

Cancun

Mon 3/2

1:05 pm-2:51 pm

Nonstop1h 46m

$273

MiamiCancún

MIA - CUN

MIACUN

Miami

Tue 4/14

10:50 am-12:00 pm

Nonstop2h 10m

Cancun

Sat 4/25

1:30 pm-4:30 pm

Nonstop2h 00m

$273

MiamiCancún

MIA - CUN

MIACUN

Miami

Fri 2/27

9:40 am-11:50 am

Nonstop2h 10m

Cancun

Mon 3/2

1:05 pm-2:51 pm

Nonstop1h 46m

$273

MiamiCancún

MIA - CUN

MIACUN

Miami

Sun 3/1

9:40 am-11:50 am

Nonstop2h 10m

Cancun

Sat 3/14

1:05 pm-4:12 pm

Nonstop2h 07m

$283

MiamiCancún

MIA - CUN

MIACUN

Miami

Wed 4/15

6:30 am-7:35 pm

1 stop14h 05m

Cancun

Wed 4/22

6:50 am-12:35 am

1 stop16h 45m

$283

MiamiCancún

MIA - CUN

MIACUN

Miami

Thu 2/26

3:20 pm-9:11 pm

1 stop5h 51m

Cancun

Sun 3/1

1:05 pm-2:51 pm

Nonstop1h 46m

$283

MiamiCancún

MIA - CUN

MIACUN

Miami

Thu 3/5

9:40 am-11:50 am

Nonstop2h 10m

Cancun

Mon 3/9

1:05 pm-4:12 pm

Nonstop2h 07m

$283

MiamiCancún

MIA - CUN

MIACUN

Miami

Thu 3/5

9:40 am-11:50 am

Nonstop2h 10m

Cancun

Fri 3/13

1:05 pm-4:12 pm

Nonstop2h 07m

$283

MiamiCancún

MIA - CUN

MIACUN

Miami

Thu 3/5

9:40 am-11:50 am

Nonstop2h 10m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

Showing 1-10 of 17 results
1
2

Best time to book a flight from Key Largo to Cancún

Have a flexible travel schedule? Discover the best time to fly to Cancún 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 Cancún

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Cancún. Price data was last updated on February 6, 2026.

The best time to book flights from Key Largo to Cancún is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Key Largo to Cancún (average of $119). Flying from Key Largo to Cancún in March is currently the most expensive (average of $195). 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 CUN?

Find hourly flight availability from Key Largo to Cancún. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 13, 2026.

A simple way to save on the total cost of your ticket is to fly from Key Largo to Cancún in the evening. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the afternoon.

Weekly flight availability from Key Largo to Cancún

Explore weekly flight availability from Key Largo to Cancún. 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 13, 2026.

The most flights from KE9 to CUN are scheduled on a Thursday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Cancún

Get insights into the airlines that provide service to Cancún. 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 Cancún. Reviews last updated February 13, 2026.
Peruse reviews from past customers who have flown with Delta, Aeromexico, and American Airlines from Key Largo to Cancún 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
7.9
Good
8,196 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
7.9
Good
8,196 reviews
Delta
7.9
Good
8,196 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Aeromexico
7.4
Good
1,577 reviews
Delta
7.9
Good
8,196 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
11,279 reviews
Delta
7.9
Good
8,196 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Spirit Airlines
6.3
Okay
8,451 reviews
Delta
7.9
Good
8,196 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Frontier
5.7
Fair
3,052 reviews
Delta
7.9
Good
8,196 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

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

  • What airport do you fly into for flights to Cancún from Key Largo?

    For a flight from Key Largo to Cancún, you will be flying into Cancun. Cancun (CUN) is just 8.9 mi from the center of the city. Cancun is the only Cancún airport and it handles 7 inbound flights from Key Largo per day. 8 airlines have flights to Cancun from Key Largo on a regular basis.

  • How popular is this Key Largo to Cancún flight route?

    The Key Largo to Cancun flight path was viewed by 26 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    For as low as $273, Delta can have you in Cancún from Key Largo in 2h 10m. The distance between Key Largo and Cancún is about 531 mi. Most flights are nonstop.

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

    To fly one-way, consider booking your trip with Viva, which is currently one of the cheapest options available, starting at $65. Frontier flights start at $70 while deals on Spirit Airlines start at $92 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Key Largo to Cancún on time: LATAM Airlines (94%), Scandinavian Airlines (90%), Delta (90%).

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

    Looking for the cheapest flight from Key Largo to Cancún? While on average our users pay $481, our data indicates the cheapest price to be $128. The most popular route (Miami - Cancun), is priced around $241.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Cancún 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 Cancún?

    Currently, October is the cheapest month in which you can book a flight from Key Largo to Cancún (average of $119). Flying from Key Largo to Cancún in March is currently the most expensive (average of $195). 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

Traveling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Puerto Aventuras
Holbox
Punta Sam

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Top 8 airlines flying from Key Largo to Cancún

Discover the top 8 airlines that operate flights from Key Largo to Cancún. 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 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$101Average$233FlexibilityNo cancel feeOn-time62%
DeltaCheapest$119Average$374FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$119Average$267FlexibilityNo cancel feeOn-time65%
AviancaCheapest$145Average$371FlexibilityNo cancel feeOn-time71%
AeromexicoCheapest$146Average$323FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$169Average$352FlexibilityNo cancel feeOn-time62%
VolarisCheapest$189Average$307FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$258Average$440FlexibilityNo cancel feeOn-time71%

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