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$512+ 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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — CUN
May 2 — May 91
Sat 5/2
Sat 5/9
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 April 2, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/31:06 pm
EYW
-
CUN
1 stop20h 06m
Multiple Airlines
Mon 4/62:39 pm
CUN
-
EYW
2 stops20h 42m
Multiple Airlines
Deal found 3/31$512
This Mytrip deal was found by Cheapflights users on 4/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:25 pm
EYW
-
CUN
2 stops21h 12m
Multiple Airlines
Fri 4/1711:36 am
CUN
-
EYW
2 stops22h 20m
Multiple Airlines
Deal found 4/1$554
This Delta deal was found by Cheapflights users on 3/30. 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.
Thu 5/147:30 am
EYW
-
CUN
1 stop13h 46m
Delta
Thu 5/218:00 am
CUN
-
EYW
1 stop8h 23m
Delta
Deal found 3/30$584
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:58 pm
EYW
-
CUN
2 stops21h 42m
American Airlines
Thu 5/2110:31 am
CUN
-
EYW
1 stop7h 18m
American Airlines
Deal found 3/30$599
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/32:35 pm
EYW
-
CUN
2 stops18h 37m
Spirit Airlines
Mon 4/610:20 am
CUN
-
EYW
3 stops24h 10m
Spirit Airlines
Deal found 3/31$657
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:33 am
EYW
-
CUN
1 stop7h 28m
Delta
Fri 4/178:00 am
CUN
-
EYW
1 stop10h 40m
Delta
Deal found 4/1$663
This Aeromexico deal was found by Cheapflights users on 3/30. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:33 am
EYW
-
CUN
2 stops13h 07m
Aeromexico
Thu 4/168:00 am
CUN
-
EYW
1 stop10h 40m
Aeromexico
Deal found 3/30$664
This American Airlines deal was found by Cheapflights users on 3/31. 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 4/37:42 pm
EYW
-
CUN
2 stops17h 43m
American Airlines
Mon 4/62:10 pm
CUN
-
EYW
2 stops20h 06m
American Airlines
Deal found 3/31$759
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/144:05 pm
EYW
-
CUN
2 stops23h 13m
United Airlines
Thu 5/213:24 pm
CUN
-
EYW
2 stops22h 43m
United Airlines
Deal found 3/30$769

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 April 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$554
(Mytrip)
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 April 2, 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

Key WestCancún

EYW - CUN

EYWCUN

Key West

Thu 5/14

7:30 am-8:16 pm

1 stop13h 46m

Cancun

Thu 5/21

8:00 am-5:23 pm

1 stop8h 23m

$584

Key WestCancún

EYW - CUN

EYWCUN

Key West

Thu 5/14

3:58 pm-12:40 pm

2 stops21h 42m

Cancun

Thu 5/21

10:31 am-6:49 pm

1 stop7h 18m

$599
Quickest round-trip

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 4/14

7:33 am-12:40 pm

1 stop6h 07m

Cancun

Thu 4/16

8:00 am-5:23 pm

1 stop8h 23m

$663

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 4/14

7:33 am-2:01 pm

1 stop7h 28m

Cancun

Fri 4/17

8:00 am-7:40 pm

1 stop10h 40m

$663

Key WestCancún

EYW - CUN

EYWCUN

Key West

Thu 5/14

4:05 pm-2:18 pm

2 stops23h 13m

Cancun

Thu 5/21

3:24 pm-3:07 pm

2 stops22h 43m

$769

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Sorted by cheapest first
  • 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 6h 07m. Fly via Delta, American Airlines, or Aeromexico 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.

  • 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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