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$102+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — CUN
oct. 22 — oct. 291
mié. 10/22
mié. 10/29
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 72 days in advance, depart on a Monday or Sunday and return on a Friday

Cheap 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 septiembre 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$233
(Kiwi.com)

One-way from

$102
(Booking.com)

Popular in

November

Cheapest in

July

Average price

$310
Provider with most accurate pricing for Miami-Cancun flight deals.
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From Key Largo to Cancun
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One-way flight from Key Largo to Cancun
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Highest demand for flights based on searches. 9% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 septiembre 22, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
sáb. 10/185:02 pmMIA - CUN
1 stop10h 31mMultiple Airlines
sáb. 10/251:33 pmCUN - MIA
Nonstop1h 53mMultiple Airlines
Deal found 9/20$233
This Rumbo deal was found by Cheapflights users on 9/21. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:00 amMIA - CUN
1 stop9h 34mAeromexico
mar. 11/188:00 amCUN - MIA
1 stop7h 47mAeromexico
Deal found 9/21$239
This Frontier deal was found by Cheapflights users on 9/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/111:34 pmMIA - CUN
Nonstop1h 57mFrontier
sáb. 10/181:33 pmCUN - MIA
Nonstop1h 53mFrontier
Deal found 9/20$241
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
mié. 10/82:12 pmMIA - CUN
1 stop8h 37mMultiple Airlines
sáb. 10/111:33 pmCUN - MIA
Nonstop1h 53mMultiple Airlines
Deal found 9/21$253
This Booking.com deal was found by Cheapflights users on 9/21. 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.
sáb. 10/113:55 pmMIA - CUN
1 stop7h 20mMultiple Airlines
sáb. 10/181:33 pmCUN - MIA
Nonstop1h 53mMultiple Airlines
Deal found 9/21$255
This Priceline deal was found by Cheapflights users on 9/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/251:34 pmMIA - CUN
Nonstop1h 57mMultiple Airlines
vie. 10/3112:11 pmCUN - MIA
1 stop5h 15mMultiple Airlines
Deal found 9/19$257
This American Airlines deal was found by Cheapflights users on 9/21. 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.
sáb. 11/810:05 amMIA - CUN
Nonstop2h 05mAmerican Airlines
lun. 11/171:10 pmCUN - MIA
Nonstop1h 49mAmerican Airlines
Deal found 9/21$260
This American Airlines deal was found by Cheapflights users on 9/20. 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.
mar. 11/1110:05 amMIA - CUN
Nonstop2h 05mAmerican Airlines
jue. 11/1311:50 amCUN - MIA
Nonstop1h 35mAmerican Airlines
Deal found 9/20$261
This Gotogate deal was found by Cheapflights users on 9/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/86:00 amMIA - CUN
1 stop7h 49mSpirit Airlines
jue. 11/132:44 pmCUN - MIA
1 stop9h 32mSpirit Airlines
Deal found 9/21$262
This Mytrip deal was found by Cheapflights users on 9/22. 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.
vie. 10/103:55 pmMIA - CUN
1 stop7h 20mMultiple Airlines
sáb. 10/111:33 pmCUN - MIA
Nonstop1h 53mMultiple Airlines
Deal found 9/22$263

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 septiembre 22, 2025.
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

mié. 12/3

7:00 am-9:20 pm

1 stop14h 20m

Cancun

mar. 12/16

1:05 pm-2:56 pm

Nonstop1h 51m

$260

MiamiCancún

MIA - CUN

MIACUN

Miami

lun. 10/20

7:05 am-12:00 pm

1 stop5h 55m

Cancun

dom. 10/26

3:15 pm-10:55 pm

1 stop6h 40m

$276

MiamiCancún

MIA - CUN

MIACUN

Miami

mar. 11/4

7:02 am-12:18 am

1 stop17h 16m

Cancun

jue. 11/13

1:32 pm-8:46 pm

1 stop7h 14m

$276

MiamiCancún

MIA - CUN

MIACUN

Miami

mié. 12/3

10:32 am-9:20 pm

1 stop10h 48m

Cancun

jue. 12/18

1:05 pm-3:00 pm

Nonstop1h 55m

$300

MiamiCancún

MIA - CUN

MIACUN

Miami

mar. 12/16

10:01 am-12:05 pm

Nonstop2h 04m

Cancun

mié. 1/7

1:05 pm-3:01 pm

Nonstop1h 56m

$301

MiamiCancún

MIA - CUN

MIACUN

Miami

dom. 12/14

10:01 am-12:05 pm

Nonstop2h 04m

Cancun

mar. 1/6

1:05 pm-3:01 pm

Nonstop1h 56m

$301

MiamiCancún

MIA - CUN

MIACUN

Miami

lun. 12/15

10:01 am-12:05 pm

Nonstop2h 04m

Cancun

mar. 12/30

1:05 pm-3:00 pm

Nonstop1h 55m

$301

MiamiCancún

MIA - CUN

MIACUN

Miami

sáb. 10/18

6:20 am-5:45 pm

1 stop12h 25m

Cancun

mar. 10/21

12:15 pm-11:25 pm

1 stop10h 10m

$311

MiamiCancún

MIA - CUN

MIACUN

Miami

mié. 10/8

6:20 am-8:45 pm

1 stop15h 25m

Cancun

vie. 10/17

7:10 am-5:00 pm

1 stop8h 50m

$311

MiamiCancún

MIA - CUN

MIACUN

Miami

mar. 12/2

6:00 am-9:20 pm

1 stop15h 20m

Cancun

dom. 12/21

12:25 pm-10:45 pm

1 stop10h 20m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/19

Showing 1-10 of 19 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 September 19, 2025.

The best time to book flights from Key Largo to Cancún is 72 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, January is the cheapest month in which you can book a flight from Key Largo to Cancún (average of $360). Flying from Key Largo to Cancún in March is currently the most expensive (average of $492). 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 septiembre 22, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key Largo to Cancún as you normally would.

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

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

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

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 septiembre 22, 2025.

The most flights from KE9 to CUN are scheduled on a Tuesday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 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 septiembre 22, 2025.
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
8.0
Very good
7,971 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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
8.0
Very good
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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
7.5
Good
1,694 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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
10,000 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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
8,031 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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
5.8
Fair
3,166 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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 4 inbound flights from Key Largo per day. 10 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 12 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 $276, Delta can have you in Cancún from Key Largo in 5h 55m. The distance between Key Largo and Cancún is about 531 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $119. Spirit Airlines flights start at $121 while deals on Southwest start at $124 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: Frontier (100%), Delta (97%), Aeromexico (97%).

  • 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 $396, our data indicates the cheapest price to be $119. The most popular route (Miami - Cancun), is priced around $226.

  • 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, January is the cheapest month in which you can book a flight from Key Largo to Cancún (average of $360). Flying from Key Largo to Cancún in March is currently the most expensive (average of $492). 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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See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Key Largo to Cancún

Discover the top 10 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 septiembre 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$105Average$238FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$137Average$271FlexibilityNo cancel feeOn-time65%
AeromexicoCheapest$167Average$349FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$194Average$370FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$196Average$365FlexibilityNo cancel feeOn-time62%
VivaCheapest$200Average$288FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$230Average$384FlexibilityNo cancel feeOn-time71%
VolarisCheapest$257Average$343FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$260Average$445FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$460Average$572FlexibilityNo cancel feeOn-time69%

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