$268+ Cheap flights from Cancún (CUN) to Key West (EYW)
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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — EYW
May 28 — Jun 41
Round-trip
1 adult, Economy
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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 Cancún to Key West
Cheapest
Best
Last-minute
One-way
Cheapest flights from Cancún to Key WestExplore the most affordable flight options available from Cancún to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
Explore the most affordable flight options available from Cancún to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
This Delta deal was found by Cheapflights users on 4/24. 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 6/88:00 am
CUN
- EYW
1 stop8h 29m
Delta
Mon 6/157:45 am
EYW
- CUN
1 stop13h 40m
Delta
Deal found 4/24![Delta logo]()
$523
This American Airlines deal was found by Cheapflights users on 4/24. 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 6/83:45 pm
CUN
- EYW
2 stops18h 11m
American Airlines
Mon 6/157:29 pm
EYW
- CUN
1 stop19h 06m
American Airlines
Deal found 4/24![American Airlines logo]()
$602
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Sun 5/317:51 am
CUN
- EYW
2 stops30h 16m
United Airlines
Thu 6/43:50 pm
EYW
- CUN
2 stops43h 00m
United Airlines
Deal found 4/27![United Airlines logo]()
$654
This Aeromexico deal was found by Cheapflights users on 4/24. 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.
Sun 5/318:00 am
CUN
- EYW
1 stop10h 49m
Aeromexico
Thu 6/47:30 am
EYW
- CUN
2 stops16h 25m
Aeromexico
Deal found 4/24![Aeromexico logo]()
$812
Best flights from Cancún to Key WestDiscover carefully curated flight deals from Cancún to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
Discover carefully curated flight deals from Cancún to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
This Delta deal was found by Cheapflights users on 4/24. 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 6/88:00 am
CUN
- EYW
1 stop8h 29m
Delta
Mon 6/157:45 am
EYW
- CUN
1 stop13h 40m
Delta
Deal found 4/24![Delta logo]()
$523
This American Airlines deal was found by Cheapflights users on 4/24. 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 6/83:45 pm
CUN
- EYW
2 stops18h 11m
American Airlines
Mon 6/157:29 pm
EYW
- CUN
1 stop19h 06m
American Airlines
Deal found 4/24![American Airlines logo]()
$602
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Sun 5/317:51 am
CUN
- EYW
2 stops30h 16m
United Airlines
Thu 6/43:50 pm
EYW
- CUN
2 stops43h 00m
United Airlines
Deal found 4/27![United Airlines logo]()
$654
This Aeromexico deal was found by Cheapflights users on 4/24. 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.
Sun 5/318:00 am
CUN
- EYW
1 stop10h 49m
Aeromexico
Thu 6/47:30 am
EYW
- CUN
1 stop13h 46m
Aeromexico
Deal found 4/24![Aeromexico logo]()
$892
Last-minute flights from Cancún to Key WestDiscover last-minute flight deals from Cancún to Key West. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from Cancún to Key West. Data last updated April 28, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Sun 5/317:51 am
CUN
- EYW
2 stops30h 16m
United Airlines
Thu 6/43:50 pm
EYW
- CUN
2 stops43h 00m
United Airlines
Deal found 4/27![United Airlines logo]()
$654
This Aeromexico deal was found by Cheapflights users on 4/24. 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.
Sun 5/318:00 am
CUN
- EYW
1 stop10h 49m
Aeromexico
Thu 6/47:30 am
EYW
- CUN
2 stops16h 25m
Aeromexico
Deal found 4/24![Aeromexico logo]()
$812
One-way flights from Cancún to Key WestSearch for one-way flight options from Cancún to Key West. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
Search for one-way flight options from Cancún to Key West. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 8/2111:02 am
CUN
- EYW
3 stops46h 22m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$268
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Fri 8/2112:11 pm
CUN
- EYW
1 stop25h 55m
United Airlines
Deal found 4/26![United Airlines logo]()
$339
Find flight deals from Cancún to Key West
Discover tips and strategies to find the most affordable flight options for your journey from Cancún (CUN) to Key West (EYW). 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 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $523 (Delta) |
One-way from | $268 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Cancún to Key West 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 28, 2026.
Use the filters below to find and compare flights from Cancún to Key West that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
CancúnKey West
CUN - EYW
CUNEYW
Cancun
Mon 6/8
8:00 am-5:29 pm
1 stop8h 29m
Key West
Mon 6/15
7:45 am-8:25 pm
1 stop13h 40m
$523
CancúnKey West
CUN - EYW
CUNEYW
Cancun
Mon 6/8
3:45 pm-10:56 am
2 stops18h 11m
Key West
Mon 6/15
7:29 pm-1:35 pm
1 stop19h 06m
$602
CancúnKey West
CUN - EYW
CUNEYW
Cancun
Sun 5/31
7:51 am-3:07 pm
2 stops30h 16m
Key West
Thu 6/4
3:50 pm-9:50 am
2 stops43h 00m
$654
CancúnKey West
CUN - EYW
CUNEYW
Cancun
Sun 5/31
8:00 am-7:49 pm
1 stop10h 49m
Key West
Thu 6/4
7:30 am-8:16 pm
1 stop13h 46m
$892
Cheapest one-way
CancúnKey West
CUN - EYW
CUNEYW
Cancun
Fri 8/21
11:02 am-10:24 am
3 stops46h 22m
$268
Quickest one-way
CancúnKey West
CUN - EYW
CUNEYW
Cancun
Fri 8/21
12:11 pm-3:06 pm
1 stop25h 55m
$339
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Cancún-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cancún-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cancún-Key West flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Cancún-Key West 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 Cancún-Key West 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 Cancún to Key West
Have a flexible travel schedule? Discover the best time to fly to Key West from Cancún with our price prediction graph.
CUN-EYW
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 Cancún to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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