$165+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — CUN
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Key West to Cancún with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Key West to Cancún
Cheapest
Best
Last-minute
One-way
Cheapest flights from Key West to CancúnExplore 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 September 9, 2026.
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 September 9, 2026.
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/227:19 pm -
1 stop16h 55m
Thu 10/2912:45 pm -
1 stop5h 48m
Deal found 9/7![American Airlines logo]()
$600
Best flights from Key West to CancúnDiscover 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 September 9, 2026.
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 September 9, 2026.
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 1/139:52 am -
1 stop6h 39m
Fri 1/2211:55 am -
1 stop7h 08m
Deal found 9/8![American Airlines logo]()
$575
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 1/1312:56 pm -
2 stops26h 41m
Fri 1/228:39 am -
2 stops27h 36m
Deal found 9/8![United Airlines logo]()
$855
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/227:19 pm -
1 stop16h 55m
Thu 10/2912:45 pm -
1 stop5h 48m
Deal found 9/7![American Airlines logo]()
$600
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 1/209:52 am -
1 stop5h 08m
Mon 1/2511:55 am -
1 stop7h 08m
Deal found 9/8![American Airlines logo]()
$605
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 2/65:51 pm -
2 stops21h 33m
Sat 2/136:16 pm -
2 stops20h 20m
Deal found 9/4![United Airlines logo]()
$905
Last-minute flights from Key West to CancúnDiscover last-minute flight deals from Key West to Cancún. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Key West to Cancún. Data last updated September 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/227:19 pm -
1 stop16h 55m
Thu 10/2912:45 pm -
1 stop5h 48m
Deal found 9/7![American Airlines logo]()
$600
One-way flights from Key West to CancúnSearch for one-way flight options from Key West to Cancún. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Key West to Cancún. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 11/1410:04 am -
2 stops27h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Sun 10/188:41 pm -
2 stops17h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Wed 10/2810:04 am -
2 stops27h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Thu 10/298:36 pm -
2 stops41h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Mon 10/192:54 pm -
2 stops19h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Sun 10/258:36 pm -
2 stops17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 9/5. 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.
Mon 10/197:40 am -
1 stop6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$271
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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $575 (American Airlines) |
One-way from | $165 (Kiwi.com) |
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 7,457,451 searches. Data last updated September 9, 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
Cheapest round-trip
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Sat 11/14
10:04 am-1:41 pm
2 stops27h 37m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$165
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Sun 10/25
8:36 pm-12:41 pm
2 stops17h 05m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$259
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Mon 10/19
7:40 am-1:15 pm
1 stop6h 35m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$271
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Wed 10/28
7:40 am-7:55 pm
1 stop13h 15m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$271
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Sun 10/18
12:01 pm-12:41 pm
3 stops25h 40m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$279
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Mon 10/19
12:59 pm-9:58 am
3 stops45h 59m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$300
Quickest round-trip
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Tue 10/27
10:24 am-1:07 pm
1 stop3h 43m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$324
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Sun 10/18
8:03 pm-11:45 am
1 stop16h 42m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$338
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Sat 11/14
10:18 am-10:46 am
1 stop24h 28m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$338
Key WestCancún
EYW Key West - CUN Cancun
EYWCUN
Key West
Thu 10/29
7:40 am-2:25 pm
1 stop7h 45m
Cancun
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$368
Showing 1-10 of 15 resultsSorted 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
EYW-CUN
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.
Traveling to a place near Cancún?
Book flights to Cancún if you plan to visit one of these locationsPuerto Aventuras
Punta Sam
Holbox
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