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$453+ Cheap flights from Key West (EYW) to Cancún (CUN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — CUN
Aug 24 — Aug 311
So 8/24
So 8/31
1 adult, Economy
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Cheap flight deals from Key West to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from Key West (EYW) to Cancún (CUN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 19, 2025.

Round-trip from

$453
(Aeromexico)
From Key West to Cancun
Search Deals

Find flight deals from Key West to Cancún

Cheapest flights from Key West to Cancún
Explore the most affordable flight options available from Key West to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2025.

This Aeromexico deal was found by Cheapflights users on 8/17. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 9/82:00 pmEYW - CUN
1 stop7h 20mAeromexico
Di 9/168:00 amCUN - EYW
1 stop11h 07mAeromexico
Deal found 8/17$453
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Mi 10/111:25 amEYW - CUN
1 stop5h 01mAmerican Airlines
Mi 10/812:45 pmCUN - EYW
1 stop5h 37mAmerican Airlines
Deal found 8/17$486
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Di 11/187:31 amEYW - CUN
1 stop8h 40mAmerican Airlines
Sa 11/2211:50 amCUN - EYW
1 stop4h 49mAmerican Airlines
Deal found 8/18$499
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Mo 9/87:31 pmEYW - CUN
1 stop15h 10mAmerican Airlines
Di 9/167:50 amCUN - EYW
2 stops10h 09mAmerican Airlines
Deal found 8/17$505
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Mi 9/2411:25 amEYW - CUN
1 stop5h 01mAmerican Airlines
Mo 9/2910:45 amCUN - EYW
1 stop7h 14mAmerican Airlines
Deal found 8/17$516
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Fr 11/78:00 pmEYW - CUN
1 stop14h 35mAmerican Airlines
Mo 11/101:10 pmCUN - EYW
1 stop6h 19mAmerican Airlines
Deal found 8/18$546
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Mi 9/2411:25 amEYW - CUN
1 stop5h 01mAmerican Airlines
Sa 9/2712:50 pmCUN - EYW
1 stop5h 09mAmerican Airlines
Deal found 8/18$568

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key West 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 August 19, 2025.
Use the filters below to find and compare flights from Key West to Cancún that are best for you.

Fly from

Key West

Fly to

Cancún

Route

Depart

Return

Price

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mo 9/8

2:00 pm-8:20 pm

1 stop7h 20m

Cancun

Di 9/16

8:00 am-8:07 pm

1 stop11h 07m

$453

Key WestCancún

EYW - CUN

EYWCUN

Key West

Di 11/18

7:00 am-1:46 pm

1 stop6h 46m

Cancun

Sa 11/22

8:10 am-7:44 pm

1 stop11h 34m

$486

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mi 10/1

11:25 am-3:26 pm

1 stop5h 01m

Cancun

Mi 10/8

12:45 pm-7:22 pm

1 stop5h 37m

$486

Key WestCancún

EYW - CUN

EYWCUN

Key West

Di 11/18

7:31 am-4:11 pm

1 stop8h 40m

Cancun

Sa 11/22

11:50 am-4:39 pm

1 stop4h 49m

$499

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mo 9/8

7:31 pm-9:41 am

1 stop15h 10m

Cancun

Di 9/16

7:50 am-6:59 pm

2 stops10h 09m

$505

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mi 9/24

11:25 am-3:26 pm

1 stop5h 01m

Cancun

Mo 9/29

10:45 am-6:59 pm

1 stop7h 14m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Best time to book a flight from Key West to Cancún

Have a flexible travel schedule? Discover the best time to fly to Cancún from Key West 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.

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 August 19, 2025.
Read through reviews of airlines operating flights from Key West to Cancún, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Comfort

7.2

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Comfort

7.2

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Related info for your journey

Find useful and relevant information for your journey from Key West to Cancún. 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 West to Cancún?

    There are many flights that can get you from Key West to Cancún in 5h 01m. Fly via Aeromexico, Delta, or American Airlines to get the fastest option. Key West and Cancún are separated by a distance of 406 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Key West to Cancún round-trip?

    According to our current data, American Airlines ($439), offers the cheapest pricing from Key West to Cancún.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Key West to Cancún (average of $360). Flying from Key West 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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Top airline flying from Key West to Cancún

Discover the top airline that operate flights from Key West 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 August 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$439Average$530FlexibilityNo cancel feeOn-time71%

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