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Cheap flights from Key West to Cancún from $373

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to Cancún departing on 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:46 am - 8:11 am
EYW
-
CUN
23h 25m
1 stop
Multiple Airlines Logo
9:12 am - 12:26 pm
CUN
-
EYW
26h 14m
1 stop
$373Multiple Airlines
Thu, Apr 2 - Sun, Apr 5
Multiple Airlines Logo
1:06 pm - 8:11 am
EYW
-
CUN
20h 05m
1 stop
Multiple Airlines Logo
2:39 pm - 1:37 pm
CUN
-
EYW
21h 58m
1 stop
$393Multiple Airlines
Fri, Apr 3 - Sun, Apr 5
Multiple Airlines Logo
9:46 am - 8:11 am
EYW
-
CUN
23h 25m
1 stop
Multiple Airlines Logo
2:39 pm - 9:09 am
CUN
-
EYW
17h 30m
2 stops
$396Multiple Airlines
Thu, Apr 2 - Sun, Apr 5
Multiple Airlines Logo
1:06 pm - 1:26 pm
EYW
-
CUN
25h 20m
1 stop
Multiple Airlines Logo
10:34 am - 10:21 am
CUN
-
EYW
46h 47m
2 stops
$423Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
Delta Logo
2:40 pm - 8:15 pm
EYW
-
CUN
6h 35m
1 stop
Delta Logo
8:00 am - 7:49 pm
CUN
-
EYW
10h 49m
1 stop
$549Delta
Wed, May 6 - Wed, May 13
Multiple Airlines Logo
12:26 pm - 12:38 pm
EYW
-
CUN
25h 12m
1 stop
Multiple Airlines Logo
11:05 am - 11:27 am
CUN
-
EYW
23h 22m
2 stops
$555Multiple Airlines
Sun, May 3 - Sun, May 10
Delta Logo
7:33 am - 2:01 pm
EYW
-
CUN
7h 28m
1 stop
Delta Logo
8:00 am - 5:23 pm
CUN
-
EYW
8h 23m
1 stop
$584Delta
Mon, Apr 20 - Mon, Apr 27
Delta Logo
7:33 am - 12:40 pm
EYW
-
CUN
6h 07m
1 stop
Delta Logo
8:00 am - 7:40 pm
CUN
-
EYW
10h 40m
1 stop
$592Delta
Fri, Apr 17 - Fri, Apr 24
American Airlines Logo
6:45 am - 3:25 pm
EYW
-
CUN
9h 40m
1 stop
American Airlines Logo
3:07 pm - 10:58 pm
CUN
-
EYW
6h 51m
1 stop
$594American Airlines
Mon, May 4 - Mon, May 11
American Airlines Logo
3:58 pm - 12:42 pm
EYW
-
CUN
21h 44m
2 stops
American Airlines Logo
12:10 pm - 10:58 pm
CUN
-
EYW
9h 48m
2 stops
$599American Airlines
Fri, Apr 17 - Fri, Apr 24

Delta flights from Key West to Cancún

Our best Delta deals on Key West to Cancún flight tickets
Delta
May 6
EYW2:40 pmKey West
6h 35m
1 stop
CUN8:15 pmCancun
May 13
CUN8:00 amCancun
10h 49m
1 stop
EYW7:49 pmKey West
$549
Delta
Apr 20
EYW7:33 amKey West
7h 28m
1 stop
CUN2:01 pmCancun
Apr 27
CUN8:00 amCancun
8h 23m
1 stop
EYW5:23 pmKey West
$584
Delta
Apr 17
EYW7:33 amKey West
6h 07m
1 stop
CUN12:40 pmCancun
Apr 24
CUN8:00 amCancun
10h 40m
1 stop
EYW7:40 pmKey West
$592

Aeromexico flights from Key West to Cancún

Our best Aeromexico deals on Key West to Cancún flight tickets
Aeromexico
May 7
EYW7:30 amKey West
17h 15m
2 stops
CUN11:45 pmCancun
May 14
CUN6:42 pmCancun
24h 07m
2 stops
EYW7:49 pmKey West
$569
Aeromexico
Mar 24
EYW7:30 amKey West
13h 50m
1 stop
CUN8:20 pmCancun
Mar 26
CUN11:15 amCancun
7h 26m
1 stop
EYW7:41 pmKey West
$654
Aeromexico
Mar 24
EYW7:30 amKey West
13h 50m
1 stop
CUN8:20 pmCancun
Mar 26
CUN10:00 amCancun
8h 41m
1 stop
EYW7:41 pmKey West
$699

momondo 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, momondo users made 832,500 searches. Data last updated March 24, 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

Price

Cheapest round-trip

Key WestCancún

EYW - CUN

EYWCUN

Key West

Thu 4/2

9:46 am-8:11 am

1 stop23h 25m

Cancun

Sun 4/5

9:12 am-12:26 pm

1 stop26h 14m

$373

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 4/3

1:06 pm-8:11 am

1 stop20h 05m

Cancun

Sun 4/5

2:39 pm-1:37 pm

1 stop21h 58m

$393

Key WestCancún

EYW - CUN

EYWCUN

Key West

Thu 4/2

9:46 am-8:11 am

1 stop23h 25m

Cancun

Sun 4/5

2:39 pm-9:09 am

2 stops17h 30m

$396

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 4/17

1:06 pm-1:26 pm

1 stop25h 20m

Cancun

Fri 4/24

10:34 am-10:21 am

2 stops46h 47m

$423

Key WestCancún

EYW - CUN

EYWCUN

Key West

Wed 5/6

2:40 pm-8:15 pm

1 stop6h 35m

Cancun

Wed 5/13

8:00 am-7:49 pm

1 stop10h 49m

$549

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sun 5/3

12:26 pm-12:38 pm

1 stop25h 12m

Cancun

Sun 5/10

11:05 am-11:27 am

2 stops23h 22m

$555
Quickest round-trip

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mon 4/20

7:33 am-2:01 pm

1 stop7h 28m

Cancun

Mon 4/27

8:00 am-5:23 pm

1 stop8h 23m

$584

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 4/17

7:33 am-12:40 pm

1 stop6h 07m

Cancun

Fri 4/24

8:00 am-7:40 pm

1 stop10h 40m

$592

Key WestCancún

EYW - CUN

EYWCUN

Key West

Mon 5/4

6:45 am-3:25 pm

1 stop9h 40m

Cancun

Mon 5/11

3:07 pm-10:58 pm

1 stop6h 51m

$594

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 4/17

3:58 pm-12:42 pm

2 stops21h 44m

Cancun

Fri 4/24

12:10 pm-10:58 pm

2 stops9h 48m

$599

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Key West to Cancún

Are you open to changing your travel dates? Check out the ideal times to fly from Key West to Cancún according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Key West to Cancún (EYW to CUN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Key West to Cancún

Fastest flight time

6h 35m

Direct flights

None
The fastest flight from Key West to Cancún takes 6h 35m
There are no direct flights from Key West to Cancún. There are no popular flight routes from Key West to Cancún.
Search flight deals

  • How far is Key West to Cancun by plane?

    Key West and Cancun are 396.6 mi apart from one another. A reasonable flight in good conditions will take 6h 35m.

  • When did momondo last update prices for flights from Key West Airport to Cancun Airport?

    Prices for flights from Key West Airport to Cancun Airport refresh daily.

  • How old do you have to be to fly from Key West Airport to Cancun Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Key West Airport to Cancun Airport.

  • What documentation or ID do you need to fly to Cancun Airport?

    The travel and health documents you'll need for your trip to Cancun Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cancun Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Key West to Cancún?

    Confirm your travel details to search for the latest offers for flights from Key West to Cancún. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Key West to Cancún with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Playa del Carmen
Isla Mujeres
Holbox
Puerto Morelos
Akumal
Puerto Aventuras
Punta Sam
Valladolid

Why use momondo?

Why should I use momondo to find a flight deal from Key West to Cancún?

It is quick and easy to find Key West to Cancún flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cancún that suits you.

Can I find flights from Key West to Cancún with flexible booking policies on momondo?

Flights from Key West to Cancún with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Key West to Cancún?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Key West to Cancún.

I’m not ready to book a flight from Key West to Cancún right now. Can momondo alert me if prices change?

Price alerts on flights to Cancún from Key West are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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