$187+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — CUN
Mar 21 — Mar 281
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
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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 February 19, 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 February 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 pm
EYW
- CUN
1 stop20h 12m
Multiple Airlines
Fri 3/65:09 pm
CUN
- EYW
2 stops38h 57m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 4/2612:06 pm
EYW
- CUN
1 stop24h 23m
Spirit Airlines
Thu 4/3012:35 pm
CUN
- EYW
1 stop21h 36m
Spirit Airlines
Deal found 2/19![Spirit Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 4/59:46 am
EYW
- CUN
1 stop23h 25m
Multiple Airlines
Sun 4/126:55 pm
CUN
- EYW
2 stops40h 26m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$527
This American Airlines deal was found by Cheapflights users on 2/17. 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.
Sat 3/217:42 pm
EYW
- CUN
1 stop20h 38m
American Airlines
Sat 3/2812:10 pm
CUN
- EYW
1 stop6h 02m
American Airlines
Deal found 2/17![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 2/18. 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 3/27:45 am
EYW
- CUN
1 stop8h 25m
American Airlines
Fri 3/611:29 am
CUN
- EYW
1 stop11h 08m
American Airlines
Deal found 2/18![American Airlines logo]()
$623
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Sun 4/54:01 pm
EYW
- CUN
1 stop24h 19m
American Airlines
Sun 4/124:25 pm
CUN
- EYW
1 stop5h 33m
American Airlines
Deal found 2/19![American Airlines logo]()
$646
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 February 19, 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 February 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 pm
EYW
- CUN
1 stop20h 12m
Multiple Airlines
Fri 3/65:09 pm
CUN
- EYW
2 stops38h 57m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 4/2612:06 pm
EYW
- CUN
1 stop24h 23m
Spirit Airlines
Thu 4/3012:35 pm
CUN
- EYW
1 stop21h 36m
Spirit Airlines
Deal found 2/19![Spirit Airlines logo]()
$453
This American Airlines deal was found by Cheapflights users on 2/17. 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.
Sat 3/217:42 pm
EYW
- CUN
1 stop20h 38m
American Airlines
Sat 3/2812:10 pm
CUN
- EYW
1 stop6h 02m
American Airlines
Deal found 2/17![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 2/18. 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 3/27:45 am
EYW
- CUN
1 stop8h 25m
American Airlines
Fri 3/611:29 am
CUN
- EYW
1 stop11h 08m
American Airlines
Deal found 2/18![American Airlines logo]()
$623
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Sun 4/268:05 am
EYW
- CUN
2 stops8h 20m
American Airlines
Thu 4/3012:10 pm
CUN
- EYW
2 stops9h 48m
American Airlines
Deal found 2/19![American Airlines logo]()
$660
Last-minute flights from Key West to CancúnDiscover last-minute flight deals from Key West to Cancún. Data last updated February 19, 2026 and is based on user searches.
Discover last-minute flight deals from Key West to Cancún. Data last updated February 19, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/18. 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 2/246:34 pm
EYW
- CUN
2 stops18h 48m
American Airlines
Mon 3/211:45 am
CUN
- EYW
2 stops10h 52m
American Airlines
Deal found 2/18![American Airlines logo]()
$672
This Delta deal was found by Cheapflights users on 2/18. 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 2/247:10 am
EYW
- CUN
1 stop8h 25m
Delta
Mon 3/28:00 am
CUN
- EYW
1 stop9h 01m
Delta
Deal found 2/18![Delta logo]()
$673
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 pm
EYW
- CUN
1 stop20h 12m
Multiple Airlines
Fri 3/65:09 pm
CUN
- EYW
2 stops38h 57m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 2/18. 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 3/27:45 am
EYW
- CUN
1 stop8h 25m
American Airlines
Fri 3/611:29 am
CUN
- EYW
1 stop11h 08m
American Airlines
Deal found 2/18![American Airlines logo]()
$623
This American Airlines deal was found by Cheapflights users on 2/17. 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.
Sat 3/217:42 pm
EYW
- CUN
1 stop20h 38m
American Airlines
Sat 3/2812:10 pm
CUN
- EYW
1 stop6h 02m
American Airlines
Deal found 2/17![American Airlines logo]()
$570
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 February 19, 2026.
Search for one-way flight options from Key West to Cancún. Find affordable one-way fares based on user searches. Data last updated February 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/201:06 pm
EYW
- CUN
1 stop26h 27m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/232:35 pm
EYW
- CUN
1 stop21h 55m
Spirit Airlines
Deal found 2/16![Spirit Airlines logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/1912:25 pm
EYW
- CUN
1 stop26h 09m
Spirit Airlines
Deal found 2/16![Spirit Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/232:59 pm
EYW
- CUN
2 stops23h 35m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/1910:33 pm
EYW
- CUN
2 stops34h 33m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 4/2612:06 pm
EYW
- CUN
1 stop24h 23m
Spirit Airlines
Deal found 2/19![Spirit Airlines logo]()
$240
This American Airlines deal was found by Cheapflights users on 2/16. 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 3/203:56 pm
EYW
- CUN
1 stop24h 24m
American Airlines
Deal found 2/16![American Airlines logo]()
$348
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Sun 4/268:05 am
EYW
- CUN
2 stops8h 20m
American Airlines
Deal found 2/19![American Airlines logo]()
$385
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 February 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $388 (Kiwi.com) |
One-way from | $187 (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 2,558,603 searches. Data last updated February 19, 2026.
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
Mon 3/2
1:06 pm-9:18 am
1 stop20h 12m
Cancun
Fri 3/6
5:09 pm-8:06 am
2 stops38h 57m
$388
Key WestCancún
EYW - CUN
EYWCUN
Key West
Sun 4/26
12:06 pm-11:29 am
1 stop24h 23m
Cancun
Thu 4/30
12:35 pm-11:11 am
1 stop21h 36m
$453
Key WestCancún
EYW - CUN
EYWCUN
Key West
Sat 3/21
7:42 pm-3:20 pm
1 stop20h 38m
Cancun
Sat 3/28
12:10 pm-7:12 pm
1 stop6h 02m
$570
Key WestCancún
EYW - CUN
EYWCUN
Key West
Mon 3/2
7:45 am-4:10 pm
1 stop8h 25m
Cancun
Fri 3/6
11:29 am-10:37 pm
1 stop11h 08m
$623
Key WestCancún
EYW - CUN
EYWCUN
Key West
Sun 4/26
8:05 am-3:25 pm
2 stops8h 20m
Cancun
Thu 4/30
12:10 pm-10:58 pm
2 stops9h 48m
$660
Key WestCancún
EYW - CUN
EYWCUN
Key West
Fri 3/20
1:06 pm-2:33 pm
1 stop26h 27m
$187
Key WestCancún
EYW - CUN
EYWCUN
Key West
Thu 3/19
12:25 pm-1:34 pm
1 stop26h 09m
$213
Key WestCancún
EYW - CUN
EYWCUN
Key West
Mon 3/23
2:59 pm-1:34 pm
2 stops23h 35m
$217
Key WestCancún
EYW - CUN
EYWCUN
Key West
Thu 3/19
10:33 pm-8:06 am
2 stops34h 33m
$220
Key WestCancún
EYW - CUN
EYWCUN
Key West
Sun 4/26
12:06 pm-11:29 am
1 stop24h 23m
$240
Showing 1-10 of 12 results
- 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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Other flights to Cancún
Explore flights to Cancún departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 19, 2026.
Complete your trip
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Key West and Cancún flights
Browse other Key West and Cancún flight options. Last updated on February 19, 2026.
Other flights from Key West
Browse through other flights departing from Key West. Flights are based on user searches made on Cheapflights and were last updated on February 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 February 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$439 | Average$492 | FlexibilityNo cancel fee | On-time71% |