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Cheap flights from Key West to Cancún from $264

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to Cancún departing on 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Key West to Cancún

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:29 pm - 9:30 am
EYW
-
CUN
15h 01m
1 stop
American Airlines Logo
10:30 am - 7:10 pm
CUN
-
EYW
7h 40m
1 stop
$609American Airlines
Fri, Jun 19 - Fri, Jun 26
Aeromexico Logo
7:50 am - 2:39 pm
EYW
-
CUN
7h 49m
1 stop
Aeromexico Logo
10:55 am - 7:51 pm
CUN
-
EYW
7h 56m
1 stop
$624Aeromexico
Sat, Jul 4 - Wed, Jul 8
American Airlines Logo
11:28 am - 3:26 pm
EYW
-
CUN
4h 58m
1 stop
American Airlines Logo
12:28 pm - 7:06 pm
CUN
-
EYW
5h 38m
1 stop
$631American Airlines
Wed, Jul 22 - Wed, Jul 29
American Airlines Logo
4:44 pm - 9:30 am
EYW
-
CUN
17h 46m
2 stops
American Airlines Logo
10:30 am - 7:10 pm
CUN
-
EYW
7h 40m
1 stop
$650American Airlines
Fri, Jun 19 - Fri, Jun 26
Aeromexico Logo
7:50 am - 1:16 am
EYW
-
CUN
18h 26m
2 stops
Aeromexico Logo
6:03 am - 7:53 pm
CUN
-
EYW
12h 50m
2 stops
$962Aeromexico
Fri, Jun 19 - Fri, Jun 26
WestJet Logo
11:52 am - 6:45 pm
EYW
-
CUN
31h 53m
2 stops
WestJet Logo
1:30 pm - 1:29 pm
CUN
-
EYW
22h 59m
2 stops
$2,019WestJet
Sat, Jul 4 - Wed, Jul 8
WestJet Logo
11:52 am - 6:45 pm
EYW
-
CUN
31h 53m
2 stops
WestJet Logo
1:30 pm - 1:29 pm
CUN
-
EYW
22h 59m
2 stops
$2,044WestJet
Sat, Jul 4 - Wed, Jul 8

American Airlines flights from Key West to Cancún

Our best American Airlines deals on Key West to Cancún flight tickets
American Airlines
Jun 19
EYW7:29 pmKey West
15h 01m
1 stop
CUN9:30 amCancun
Jun 26
CUN10:30 amCancun
7h 40m
1 stop
EYW7:10 pmKey West
$609
American Airlines
Jul 22
EYW11:28 amKey West
4h 58m
1 stop
CUN3:26 pmCancun
Jul 29
CUN12:28 pmCancun
5h 38m
1 stop
EYW7:06 pmKey West
$631
American Airlines
Jun 19
EYW4:44 pmKey West
17h 46m
2 stops
CUN9:30 amCancun
Jun 26
CUN10:30 amCancun
7h 40m
1 stop
EYW7:10 pmKey West
$650

Aeromexico flights from Key West to Cancún

Our best Aeromexico deals on Key West to Cancún flight tickets
Aeromexico
Jul 4
EYW7:50 amKey West
7h 49m
1 stop
CUN2:39 pmCancun
Jul 8
CUN10:55 amCancun
7h 56m
1 stop
EYW7:51 pmKey West
$624
Aeromexico
Jun 19
EYW7:50 amKey West
18h 26m
2 stops
CUN1:16 amCancun
Jun 26
CUN6:03 amCancun
12h 50m
2 stops
EYW7:53 pmKey West
$962

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 May 7, 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

Fri 6/19

7:29 pm-9:30 am

1 stop15h 01m

Cancun

Fri 6/26

10:30 am-7:10 pm

1 stop7h 40m

$609

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sat 7/4

7:50 am-2:39 pm

1 stop7h 49m

Cancun

Wed 7/8

10:55 am-7:51 pm

1 stop7h 56m

$624
Quickest round-trip

Key WestCancún

EYW - CUN

EYWCUN

Key West

Wed 7/22

11:28 am-3:26 pm

1 stop4h 58m

Cancun

Wed 7/29

12:28 pm-7:06 pm

1 stop5h 38m

$631

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 6/19

4:44 pm-9:30 am

2 stops17h 46m

Cancun

Fri 6/26

10:30 am-7:10 pm

1 stop7h 40m

$650

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 6/19

7:50 am-1:16 am

2 stops18h 26m

Cancun

Fri 6/26

6:03 am-7:53 pm

2 stops12h 50m

$962

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sat 7/4

11:52 am-6:45 pm

2 stops31h 53m

Cancun

Wed 7/8

1:30 pm-1:29 pm

2 stops22h 59m

$2,019

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sat 7/4

11:52 am-6:45 pm

2 stops31h 53m

Cancun

Wed 7/8

1:30 pm-1:29 pm

2 stops22h 59m

$2,044
Cheapest one-way

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 7/14

1:14 pm-2:24 pm

3 stops26h 10m

$264

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 7/14

11:56 am-8:15 pm

1 stop9h 19m

$302

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 7/14

1:14 pm-1:44 pm

2 stops25h 30m

$306

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Cancún from

How to get the cheapest flight ticket from Key West to Cancún

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Key West to Cancun?

Aeromexico and American Airlines are the most popular carriers operating from Key West to Cancun

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

24h 01m

Direct flights

None
The fastest flight from Key West to Cancún takes 24h 01m
There are no direct flights from Key West to Cancún. There are no popular flight routes from Key West to Cancún.
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Frequently asked questions about flying from Key West to Cancún

  • 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 24h 01m.

  • 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.

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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