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$104+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — CUN
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Cancun are usually found in May or September, booked 81 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 July 1, 2025.

Round-trip from

$213
(Cheapflightsfares)

One-way from

$104
(SmartFares)

Popular in

November

Cheapest in

May

Average price

$348
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. 4% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:00 amMIA - CUN
Nonstop1h 55mFrontier
Fri 8/88:05 amCUN - MIA
Nonstop1h 42mFrontier
Deal found 6/30$213
This Expedia deal was found by Cheapflights users on 7/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1512:00 pmMIA - CUN
Nonstop2h 15mAeromexico
Tue 7/2211:18 amCUN - MIA
1 stop17h 12mAeromexico
Deal found 7/1$218
This Trip.com deal was found by Cheapflights users on 6/30. 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.
Mon 7/146:00 amMIA - CUN
Nonstop1h 55mMultiple Airlines
Mon 7/219:26 pmCUN - MIA
1 stop7h 04mMultiple Airlines
Deal found 6/30$251
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/236:20 amMIA - CUN
1 stop8h 09mDelta
Tue 7/294:27 pmCUN - MIA
1 stop7h 17mDelta
Deal found 6/30$259

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 July 1, 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

Mon 8/4

6:00 am-6:55 am

Nonstop1h 55m

Cancun

Fri 8/8

8:05 am-10:47 am

Nonstop1h 42m

$213

MiamiCancún

MIA - CUN

MIACUN

Miami

Wed 8/13

8:53 am-9:43 am

Nonstop1h 50m

Cancun

Wed 8/20

10:45 am-1:35 pm

Nonstop1h 50m

$217

MiamiCancún

MIA - CUN

MIACUN

Miami

Tue 7/15

12:00 pm-1:15 pm

Nonstop2h 15m

Cancun

Tue 7/22

11:18 am-5:30 am

1 stop17h 12m

$218

MiamiCancún

MIA - CUN

MIACUN

Miami

Mon 7/14

6:00 am-6:55 am

Nonstop1h 55m

Cancun

Mon 7/21

9:26 pm-5:30 am

1 stop7h 04m

$251

MiamiCancún

MIA - CUN

MIACUN

Miami

Wed 7/23

6:20 am-1:29 pm

1 stop8h 09m

Cancun

Tue 7/29

4:27 pm-12:44 am

1 stop7h 17m

$259

MiamiCancún

MIA - CUN

MIACUN

Miami

Sat 7/12

6:00 am-6:55 am

Nonstop1h 55m

$104

MiamiCancún

MIA - CUN

MIACUN

Miami

Wed 8/27

5:02 pm-2:33 am

1 stop10h 31m

$107

MiamiCancún

MIA - CUN

MIACUN

Miami

Tue 7/15

5:22 pm-9:45 am

1 stop17h 23m

$117

MiamiCancún

MIA - CUN

MIACUN

Miami

Sun 8/31

6:00 am-1:57 pm

1 stop8h 57m

$120

MiamiCancún

MIA - CUN

MIACUN

Miami

Tue 7/22

7:10 am-2:00 pm

1 stop7h 50m

$122

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 13 results
1
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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 June 27, 2025.

The best time to book flights from Key Largo to Cancún is 81 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 July 1, 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 July 1, 2025.

The most flights from KE9 to CUN are scheduled on a Tuesday (8 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 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 July 1, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and Aeromexico 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.
Southwest
8.0
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,273 reviews
Southwest
8.0
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,973 reviews
Southwest
8.0
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Aeromexico
7.5
Good
1,718 reviews
Southwest
8.0
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Volaris
6.7
Okay
1,172 reviews
Southwest
8.0
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 6 inbound flights from Key Largo per day. 9 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 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $104. Volaris flights start at $107 while deals on Aeromexico start at $117 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: Delta (96%), Aeromexico (96%), Frontier (94%).

  • 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 $390, our data indicates the cheapest price to be $107. The most popular route (Miami - Cancun), is priced around $235.

  • 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 Key Largo?

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

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Top 9 airlines flying from Key Largo to Cancún

Discover the top 9 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$107Average$208FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$124Average$278FlexibilityNo cancel feeOn-time65%
AeromexicoCheapest$169Average$361FlexibilityNo cancel feeOn-timeN/A
VivaCheapest$200Average$288FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$204Average$369FlexibilityNo cancel feeOn-time62%
DeltaCheapest$226Average$380FlexibilityNo cancel feeOn-timeN/A
VolarisCheapest$257Average$336FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$257Average$470FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$460Average$572FlexibilityNo cancel feeOn-time69%

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