$249 Cheap Flights from Cancun (CUN) to Key West (EYW)

View $249 flight on Tue, Nov 18, 2025Opens in a new window

Popular airlines from Cancun Intl. Airport (CUN) to Key West Intl. Airport (EYW)

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Cheap Flights from Cancun to Key West (CUN-EYW)

Prices were available within the past 7 days and start at $249 for one-way flights and $415 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Fri, Oct 31 - Tue, Nov 4
CUN
Cancun
EYW
Key West
$415 Roundtrip, found 2 days ago
$415
Roundtrip
found 2 days ago
Select Aeromexico flight, departing Fri, Oct 31 from Cancun to Key West, returning Tue, Nov 4, priced at $415 found 2 days ago
Delta
Fri, Oct 31 - Tue, Nov 4
CUN
Cancun
EYW
Key West
$415 Roundtrip, found 2 days ago
$415
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Oct 31 from Cancun to Key West, returning Tue, Nov 4, priced at $415 found 2 days ago
Delta
Sat, Jun 13 - Wed, Jun 17
CUN
Cancun
EYW
Key West
$441 Roundtrip, found 11 hours ago
$441
Roundtrip
found 11 hours ago
Select Delta flight, departing Sat, Jun 13 from Cancun to Key West, returning Wed, Jun 17, priced at $441 found 11 hours ago
Aeromexico
Fri, Oct 31 - Tue, Nov 4
CUN
Cancun
EYW
Key West
$464 Roundtrip, found 2 days ago
$464
Roundtrip
found 2 days ago
Select Aeromexico flight, departing Fri, Oct 31 from Cancun to Key West, returning Tue, Nov 4, priced at $464 found 2 days ago
Delta
Sat, Jun 13 - Wed, Jun 17
CUN
Cancun
EYW
Key West
$467 Roundtrip, found 11 hours ago
$467
Roundtrip
found 11 hours ago
Select Delta flight, departing Sat, Jun 13 from Cancun to Key West, returning Wed, Jun 17, priced at $467 found 11 hours ago
Aeromexico
Fri, Oct 31 - Tue, Nov 4
CUN
Cancun
EYW
Key West
$470 Roundtrip, found 2 days ago
$470
Roundtrip
found 2 days ago
Select Aeromexico flight, departing Fri, Oct 31 from Cancun to Key West, returning Tue, Nov 4, priced at $470 found 2 days ago
American Airlines
Fri, Oct 31 - Tue, Nov 4
CUN
Cancun
EYW
Key West
$478 Roundtrip, found 2 days ago
$478
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Oct 31 from Cancun to Key West, returning Tue, Nov 4, priced at $478 found 2 days ago
American Airlines
Fri, Oct 31 - Tue, Nov 4
CUN
Cancun
EYW
Key West
$486 Roundtrip, found 2 days ago
$486
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Oct 31 from Cancun to Key West, returning Tue, Nov 4, priced at $486 found 2 days ago
American Airlines
Fri, Oct 31 - Tue, Nov 4
CUN
Cancun
EYW
Key West
$488 Roundtrip, found 2 days ago
$488
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Oct 31 from Cancun to Key West, returning Tue, Nov 4, priced at $488 found 2 days ago
American Airlines
Fri, Oct 31 - Tue, Nov 4
CUN
Cancun
EYW
Key West
$493 Roundtrip, found 2 days ago
$493
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Oct 31 from Cancun to Key West, returning Tue, Nov 4, priced at $493 found 2 days ago
Flights from Cancun (CUN) to Key West (EYW)
Origin airport
Cancun Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$414
Distance
406 mi

Cancun to Key West Flights

The cheapest times to fly from Cancun to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cancun to Key West are during the month of October. You can find some of the cheapest flights from Cancun to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cancun to Key West

Sunday is one of the best days to book for cheap flights from Cancun to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cancun to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cancun to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $249 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cancun to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cancun to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Cancun Intl. Airport (CUN) to Key West Intl. Airport (EYW) cost?
Discover the latest flight deals from CUN to EYW by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CUN to EYW?
The cheapest flights from CUN to EYW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CUN to EYW?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CUN to EYW. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Cancun Intl. Airport (CUN) to Key West Intl. Airport (EYW)?
You'll need to catch a flight with a layover when traveling from Cancun Intl. Airport (CUN) to Key West Intl. Airport (EYW). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from CUN to EYW?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cancun Intl. Airport (CUN) to Key West Intl. Airport (EYW)?
To land at Key West Intl. Airport (EYW) on time, select a flight that leaves Cancun Intl. Airport (CUN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cancun Intl. Airport (CUN) to Key West Intl. Airport (EYW) last-minute?
Last-minute bookings from CUN to EYW are typically more expensive. To secure the best rates, start looking for flights well ahead of time. That said, if you can play around with your travel dates, you may score a cheap fare right before your journey.
Is it cheaper to book a CUN to EYW flight and hotel package?
Booking a CUN to EYW flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cancun Intl. Airport (CUN) to Key West Intl. Airport (EYW)?
In most instances, you can reschedule or cancel your CUN to EYW flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need further details, head to our Customer Service portal.

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*Available to One Key members.