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Cancún

$489+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — CUN
Aug 5 — Aug 121
Wed 8/5
Wed 8/12
1 adult, Economy
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Cheap 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 July 6, 2026.

This Aeromexico 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:40 am
EYW
-
CUN
1 stop7h 42m
Aeromexico
Wed 8/268:05 am
CUN
-
EYW
1 stop8h 15m
Aeromexico
Deal found 7/1$489
This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:50 am
EYW
-
CUN
1 stop13h 33m
Delta
Fri 7/248:00 am
CUN
-
EYW
1 stop10h 51m
Delta
Deal found 7/2$540
This American Airlines deal was found by Cheapflights users on 7/2. 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 8/47:33 pm
EYW
-
CUN
2 stops17h 00m
American Airlines
Mon 8/102:30 pm
CUN
-
EYW
2 stops21h 39m
American Airlines
Deal found 7/2$593
This Delta deal was found by Cheapflights users on 7/5. 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.
Thu 10/157:40 am
EYW
-
CUN
1 stop6h 10m
Delta
Mon 10/1912:25 pm
CUN
-
EYW
1 stop6h 26m
Delta
Deal found 7/5$594
This American Airlines deal was found by Cheapflights users on 7/5. 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 10/158:03 pm
EYW
-
CUN
2 stops18h 31m
American Airlines
Sun 10/183:31 pm
CUN
-
EYW
2 stops17h 18m
American Airlines
Deal found 7/5$638
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 7/1711:57 am
EYW
-
CUN
1 stop21h 25m
Multiple Airlines
Sun 7/195:25 am
CUN
-
EYW
2 stops29h 02m
Multiple Airlines
Deal found 7/5$703
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Mon 7/207:33 pm
EYW
-
CUN
2 stops18h 34m
American Airlines
Fri 7/2410:34 am
CUN
-
EYW
1 stop7h 14m
American Airlines
Deal found 7/2$714
This American Airlines deal was found by Cheapflights users on 7/5. 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 7/177:33 pm
EYW
-
CUN
1 stop15h 01m
American Airlines
Sun 7/1912:28 pm
CUN
-
EYW
1 stop5h 38m
American Airlines
Deal found 7/5$826

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 July 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$489
(Aeromexico)
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

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 July 6, 2026.
Use the filters below to find and compare flights from Key West to Cancún that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mon 8/24

1:59 pm-8:05 pm

1 stop7h 06m

Cancun

Thu 8/27

6:05 am-7:57 pm

2 stops12h 52m

$489

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mon 8/24

7:40 am-1:30 am

2 stops18h 50m

Cancun

Wed 8/26

8:05 am-5:20 pm

1 stop8h 15m

$489

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mon 7/20

7:50 am-8:23 pm

1 stop13h 33m

Cancun

Fri 7/24

8:00 am-7:51 pm

1 stop10h 51m

$540

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sat 8/15

7:10 pm-2:33 pm

2 stops20h 23m

Cancun

Sat 8/22

3:34 pm-10:56 am

2 stops18h 22m

$593

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 8/4

7:33 pm-11:33 am

2 stops17h 00m

Cancun

Mon 8/10

2:30 pm-1:09 pm

2 stops21h 39m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Sorted by cheapest first

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 July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Key West-Cancún flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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 7h 06m. Fly via Aeromexico to get the fastest option. Key West and Cancún are separated by a distance of 406 mi.

  • 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
Punta Sam
Holbox

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