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$155+ Cheap flights from Key West (EYW) 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — CUN
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
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Cheap flight deals from Key West to Cancún

Best flights from Key West to Cancún
Discover carefully curated flight deals from Key West to Cancún that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Fri 1/231:06 pmEYW - CUN
1 stop20h 07mMultiple Airlines
Fri 1/304:30 pmCUN - EYW
2 stops40h 56mMultiple Airlines
Deal found 12/9$365
This SmartFares deal was found by Cheapflights users on 12/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/237:10 amEYW - CUN
1 stop8h 20mAeromexico
Fri 1/308:00 amCUN - EYW
1 stop9h 11mAeromexico
Deal found 12/9$486
This Delta deal was found by Cheapflights users on 12/8. 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.
Fri 2/62:45 pmEYW - CUN
1 stop6h 26mDelta
Mon 2/98:00 amCUN - EYW
1 stop9h 11mDelta
Deal found 12/8$511
This American Airlines deal was found by Cheapflights users on 12/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:45 amEYW - CUN
1 stop6h 37mAmerican Airlines
Thu 3/52:22 pmCUN - EYW
1 stop4h 58mAmerican Airlines
Deal found 12/9$531
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/234:15 pmEYW - CUN
2 stops20h 39mUnited Airlines
Fri 1/3012:28 pmCUN - EYW
2 stops22h 58mUnited Airlines
Deal found 12/9$633
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Mon 3/21:06 pmEYW - CUN
1 stop20h 12mMultiple Airlines
Thu 3/511:50 amCUN - EYW
2 stops24h 36mMultiple Airlines
Deal found 12/9$436
This American Airlines deal was found by Cheapflights users on 12/8. 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.
Thu 3/196:45 amEYW - CUN
1 stop9h 35mAmerican Airlines
Sun 3/222:14 pmCUN - EYW
1 stop8h 42mAmerican Airlines
Deal found 12/8$558
This United Airlines deal was found by Cheapflights users on 12/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/66:05 pmEYW - CUN
2 stops23h 45mUnited Airlines
Mon 2/94:51 pmCUN - EYW
2 stops22h 26mUnited Airlines
Deal found 12/8$658

Find 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 December 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$365
(Kiwi.com)

One-way from

$155
(Kiwi.com)
Provider with most accurate pricing for Key West-Cancun flight deals.
Search Deals
Provider most trusted by Cheapflights users for Key West-Cancun flights.
Search Deals
From Key West to Cancun
Search Deals
One-way flight from Key West to Cancun
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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 December 10, 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

Fri 1/23

1:06 pm-9:13 am

1 stop20h 07m

Cancun

Fri 1/30

4:30 pm-9:26 am

2 stops40h 56m

$365

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mon 3/2

1:06 pm-9:18 am

1 stop20h 12m

Cancun

Thu 3/5

11:50 am-12:26 pm

2 stops24h 36m

$436

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 1/23

7:10 am-3:30 pm

1 stop8h 20m

Cancun

Fri 1/30

8:00 am-5:11 pm

1 stop9h 11m

$486

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 2/6

2:45 pm-9:11 pm

1 stop6h 26m

Cancun

Mon 2/9

8:00 am-5:11 pm

1 stop9h 11m

$511

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mon 3/2

6:45 am-1:22 pm

1 stop6h 37m

Cancun

Thu 3/5

2:22 pm-7:20 pm

1 stop4h 58m

$531

Key WestCancún

EYW - CUN

EYWCUN

Key West

Thu 3/19

6:45 am-3:20 pm

1 stop9h 35m

Cancun

Sun 3/22

2:14 pm-11:56 pm

1 stop8h 42m

$558

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 1/23

4:15 pm-12:54 pm

2 stops20h 39m

Cancun

Fri 1/30

12:28 pm-11:26 am

2 stops22h 58m

$633

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 2/6

6:05 pm-5:50 pm

2 stops23h 45m

Cancun

Mon 2/9

4:51 pm-3:17 pm

2 stops22h 26m

$658

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 2/6

1:06 pm-9:13 am

1 stop20h 07m

$155

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 2/6

6:06 am-4:09 pm

2 stops10h 03m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Compare providers for flights from Key West to Cancún

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Key West to Cancún in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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 December 10, 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
11,048 reviews

Overall

7.2

Entertainment

6.9

Comfort

7.2

Boarding

7.5

Food

6.5

Crew

8.0

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
11,048 reviews
American Airlines
7.2
Good
11,048 reviews

Overall

7.2

Entertainment

6.9

Comfort

7.2

Boarding

7.5

Food

6.5

Crew

8.0

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 6h 26m. Fly via Aeromexico or Delta 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 ($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.

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 December 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$419Average$492FlexibilityNo cancel feeOn-time71%

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