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$414+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — CUN
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
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 October 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$425
(Kiwi.com)
Provider with most accurate pricing for Key West-Cancun flight deals.
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Provider most trusted by Cheapflights users for Key West-Cancun flights.
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From Key West to Cancun
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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 October 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
Sat 11/1510:47 amEYW - CUN
2 stops26h 48mMultiple Airlines
Sat 11/2210:12 amCUN - EYW
1 stop22h 03mMultiple Airlines
Deal found 10/1$425
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/98:55 amEYW - CUN
1 stop24h 09mMultiple Airlines
Sun 10/129:09 amCUN - EYW
1 stop22h 06mMultiple Airlines
Deal found 9/30$479
This American Airlines deal was found by Cheapflights users on 9/29. 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 11/127:31 amEYW - CUN
1 stop8h 40mAmerican Airlines
Wed 11/1911:50 amCUN - EYW
1 stop5h 11mAmerican Airlines
Deal found 9/29$486
This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
Fri 11/288:55 amEYW - CUN
1 stop24h 18mMultiple Airlines
Mon 12/12:44 pmCUN - EYW
2 stops20h 21mMultiple Airlines
Deal found 10/1$501
This American Airlines deal was found by Cheapflights users on 10/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/154:18 pmEYW - CUN
1 stop19h 52mAmerican Airlines
Sat 11/222:22 pmCUN - EYW
1 stop7h 42mAmerican Airlines
Deal found 10/1$524
This American Airlines deal was found by Cheapflights users on 10/2. 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.
Tue 11/187:31 amEYW - CUN
1 stop8h 40mAmerican Airlines
Sat 11/222:22 pmCUN - EYW
1 stop5h 06mAmerican Airlines
Deal found 10/2$571
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/108:55 amEYW - CUN
1 stop24h 09mMultiple Airlines
Mon 10/131:49 pmCUN - EYW
2 stops20h 16mMultiple Airlines
Deal found 9/30$581
This American Airlines deal was found by Cheapflights users on 10/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:00 amEYW - CUN
1 stop6h 22mAmerican Airlines
Mon 12/111:50 amCUN - EYW
1 stop5h 16mAmerican Airlines
Deal found 10/1$596

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 October 2, 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

Sat 11/15

10:47 am-1:35 pm

2 stops26h 48m

Cancun

Sat 11/22

10:12 am-8:15 am

1 stop22h 03m

$414

Key WestCancún

EYW - CUN

EYWCUN

Key West

Thu 10/9

8:55 am-8:04 am

1 stop24h 09m

Cancun

Sun 10/12

9:09 am-8:15 am

1 stop22h 06m

$479

Key WestCancún

EYW - CUN

EYWCUN

Key West

Wed 11/12

7:31 am-4:11 pm

1 stop8h 40m

Cancun

Wed 11/19

11:50 am-5:01 pm

1 stop5h 11m

$486

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 11/28

8:55 am-9:13 am

1 stop24h 18m

Cancun

Mon 12/1

2:44 pm-11:05 am

2 stops20h 21m

$501

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sat 11/15

7:53 pm-12:10 pm

1 stop16h 17m

Cancun

Sat 11/22

2:22 pm-7:28 pm

1 stop5h 06m

$524

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 11/18

7:31 am-2:12 pm

1 stop6h 41m

Cancun

Sat 11/22

3:13 pm-10:04 pm

1 stop6h 51m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/2

  • Most accurate provider: When it comes to deals on Key West-Cancún flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Key West-Cancún flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Key West-Cancún flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Key West-Cancún flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Key West-Cancún flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 2, 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
11,033 reviews

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

Boarding

7.5

Entertainment

6.9

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
11,033 reviews
American Airlines
7.2
Good
11,033 reviews

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

Boarding

7.5

Entertainment

6.9

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 8h 40m. Fly via American Airlines to get the fastest option. Key West and Cancún are separated by a distance of 406 mi.

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

    According to our current data, American Airlines ($419), 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 October 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$419Average$492FlexibilityNo cancel feeOn-time71%

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