$584+ Cheap flights from Cancún (CUN) to Key West (EYW)
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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — EYW
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find cheap flights from Cancún to Key West 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 Cancún to Key West
Cheapest
Best
Last-minute
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 September 7, 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 September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/3. 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 11/63:56 pm -
1 stop17h 52m
Tue 11/1710:18 am -
1 stop6h 14m
Deal found 9/3![American Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/222:49 pm -
2 stops46h 29m
Mon 10/264:10 pm -
2 stops23h 27m
Deal found 9/2![United Airlines logo]()
$675
This Aeromexico deal was found by Cheapflights users on 9/3. 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.
Thu 10/227:01 am -
2 stops12h 00m
Mon 10/267:40 am -
1 stop13h 15m
Deal found 9/3![Aeromexico logo]()
$758
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 September 7, 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 September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/3. 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 11/65:10 pm -
2 stops16h 38m
Tue 11/1711:14 am -
1 stop5h 18m
Deal found 9/3![American Airlines logo]()
$589
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:43 pm -
2 stops48h 41m
Mon 10/264:10 pm -
2 stops23h 14m
Deal found 9/6![United Airlines logo]()
$678
This Aeromexico deal was found by Cheapflights users on 9/3. 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.
Thu 10/228:00 am -
1 stop8h 15m
Mon 10/267:40 am -
1 stop13h 15m
Deal found 9/3![Aeromexico logo]()
$758
Last-minute flights from Cancún to Key WestDiscover last-minute flight deals from Cancún to Key West. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Cancún to Key West. Data last updated September 7, 2026 and is based on user searches.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:43 pm -
2 stops48h 41m
Mon 10/264:10 pm -
2 stops23h 14m
Deal found 9/6![United Airlines logo]()
$678
This Aeromexico deal was found by Cheapflights users on 9/3. 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.
Thu 10/227:01 am -
2 stops12h 00m
Mon 10/267:40 am -
1 stop13h 15m
Deal found 9/3![Aeromexico logo]()
$758
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $584 (American Airlines) |
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 7,457,451 searches. Data last updated September 7, 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
CancúnKey West
CUN Cancun - EYW Key West
CUNEYW
Cancun
Fri 11/6
5:10 pm-9:48 am
2 stops16h 38m
Key West
Tue 11/17
11:14 am-4:32 pm
1 stop5h 18m
$589
CancúnKey West
CUN Cancun - EYW Key West
CUNEYW
Cancun
Thu 10/22
1:43 pm-3:24 pm
2 stops48h 41m
Key West
Mon 10/26
4:10 pm-2:24 pm
2 stops23h 14m
$678
Quickest round-trip
CancúnKey West
CUN Cancun - EYW Key West
CUNEYW
Cancun
Thu 10/22
8:00 am-5:15 pm
1 stop8h 15m
Key West
Mon 10/26
7:40 am-7:55 pm
1 stop13h 15m
$758
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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