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

American Airlines is the most popular carrier operating from Key West to Cancun

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 many operators does momondo search for flights from Key West Airport to Cancun Airport?

As of July 2025, there is 1 operator available to choose from for flights from Key West Airport to Cancun Airport.

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.

$327 Cheap Flights from Key West to Cancún in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Key West to Cancún

Round-trip

One-way

Cheap round-trip flights

8:47 am - 8:11 amEYW-CUN

24h 24m1 stop

9:16 am - 8:15 amCUN-EYW

21h 59m1 stop

$366

Find Deal

lun., sep. 22 - mié., oct. 1

6:36 pm - 1:33 pmEYW-CUN

18h 57m2 stops

4:18 am - 8:46 pmCUN-EYW

16h 28m2 stops

$450

Find Deal

lun., nov. 3 - sáb., nov. 8

7:00 am - 1:46 pmEYW-CUN

6h 46m1 stop

8:10 am - 7:44 pmCUN-EYW

11h 34m1 stop

$458Delta

Find Deal

mar., nov. 18 - sáb., nov. 22

6:36 pm - 1:33 pmEYW-CUN

18h 57m2 stops

12:45 pm - 9:51 amCUN-EYW

21h 06m2 stops

$465

Find Deal

lun., nov. 3 - dom., nov. 9

11:50 am - 8:15 pmEYW-CUN

9h 25m1 stop

12:25 pm - 8:07 pmCUN-EYW

6h 42m1 stop

$472Aeromexico

Find Deal

vie., sep. 12 - vie., sep. 19

6:36 pm - 1:33 pmEYW-CUN

18h 57m2 stops

10:15 am - 8:46 pmCUN-EYW

10h 31m1 stop

$475

Find Deal

lun., nov. 3 - dom., nov. 9

8:47 am - 9:11 amEYW-CUN

24h 24m1 stop

10:15 am - 8:46 pmCUN-EYW

10h 31m1 stop

$476

Find Deal

lun., nov. 3 - dom., nov. 9

7:31 pm - 1:40 pmEYW-CUN

19h 09m2 stops

10:45 am - 6:59 pmCUN-EYW

7h 14m1 stop

$485American Airlines

Find Deal

lun., sep. 22 - mié., oct. 1

8:00 pm - 10:36 amEYW-CUN

14h 36m1 stop

11:50 am - 7:29 pmCUN-EYW

7h 39m1 stop

$492American Airlines

Find Deal

mar., nov. 18 - sáb., nov. 22

3:53 pm - 5:50 pmEYW-CUN

25h 57m2 stops

3:18 pm - 3:09 pmCUN-EYW

23h 51m1 stop

$909United Airlines

Find Deal

mié., dic. 3 - dom., dic. 7

American Airlines flights from Key West to Cancún

Our best American Airlines deals on Key West to Cancún flight tickets

American Airlines

Sep 22

EYW7:31 pmKey West

19h 09m

2 stops

CUN1:40 pmCancun

Oct 1

CUN10:45 amCancun

7h 14m

1 stop

EYW6:59 pmKey West

$485

Find similar

American Airlines

Nov 18

EYW8:00 pmKey West

14h 36m

1 stop

CUN10:36 amCancun

Nov 22

CUN11:50 amCancun

7h 39m

1 stop

EYW7:29 pmKey West

$492

Find similar

American Airlines

Nov 18

EYW6:33 pmKey West

16h 03m

2 stops

CUN10:36 amCancun

Nov 22

CUN5:12 pmCancun

17h 56m

2 stops

EYW11:08 amKey West

$497

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Key WestCancún

EYW - CUN

EYWCUN

Key West

lun. 9/22

8:47 am-8:11 am

1 stop24h 24m

Cancun

mié. 10/1

9:16 am-8:15 am

1 stop21h 59m

$366

Key WestCancún

EYW - CUN

EYWCUN

Key West

lun. 11/3

6:36 pm-1:33 pm

2 stops18h 57m

Cancun

sáb. 11/8

4:18 am-8:46 pm

2 stops16h 28m

$450

Key WestCancún

EYW - CUN

EYWCUN

Key West

mar. 11/18

7:00 am-1:46 pm

1 stop6h 46m

Cancun

sáb. 11/22

8:10 am-7:44 pm

1 stop11h 34m

$458

Key WestCancún

EYW - CUN

EYWCUN

Key West

lun. 11/3

6:36 pm-1:33 pm

2 stops18h 57m

Cancun

dom. 11/9

12:45 pm-9:51 am

2 stops21h 06m

$465

Key WestCancún

EYW - CUN

EYWCUN

Key West

vie. 9/12

11:50 am-8:15 pm

1 stop9h 25m

Cancun

vie. 9/19

12:25 pm-8:07 pm

1 stop6h 42m

$472

Key WestCancún

EYW - CUN

EYWCUN

Key West

lun. 11/3

6:36 pm-1:33 pm

2 stops18h 57m

Cancun

dom. 11/9

10:15 am-8:46 pm

1 stop10h 31m

$475

Key WestCancún

EYW - CUN

EYWCUN

Key West

lun. 11/3

8:47 am-9:11 am

1 stop24h 24m

Cancun

dom. 11/9

10:15 am-8:46 pm

1 stop10h 31m

$476

Key WestCancún

EYW - CUN

EYWCUN

Key West

lun. 9/22

7:31 pm-1:40 pm

2 stops19h 09m

Cancun

mié. 10/1

10:45 am-6:59 pm

1 stop7h 14m

$485

Key WestCancún

EYW - CUN

EYWCUN

Key West

mar. 11/18

8:00 pm-10:36 am

1 stop14h 36m

Cancun

sáb. 11/22

11:50 am-7:29 pm

1 stop7h 39m

$492

Key WestCancún

EYW - CUN

EYWCUN

Key West

mié. 12/3

3:53 pm-5:50 pm

2 stops25h 57m

Cancun

dom. 12/7

3:18 pm-3:09 pm

1 stop23h 51m

$909

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to Cancún?

The cheapest day to depart from Key West to Cancún is on a Monday when prices can be found for as low as $439. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $580. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

What is the cheapest time of day to depart on your flight to Cancún?

Our most recent data shows that the best time of day to fly to Cancún is at noon. Flights from Key West to Cancún during this time can be as low as $505. Flights to Cancún are more costly in the morning, with an average ticket price of $546. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

Best Price Found	$327
Fastest flight time	6h 46m
Direct flights	None
Airports in Cancún	1 airport

The best one-way flight to Cancún from Key West in the past 72 hours is $327. The best round-trip flight deal from Key West to Cancún found on momondo in the last 72 hours is $366.

The fastest flight from Key West to Cancún takes 6h 46m

There are no direct flights from Key West to Cancún. Popular non-direct route for this connection is Key West Airport - Cancun Airport.

There is 1 airport near Cancún: Cancun (CUN)

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 46m.
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 many operators does momondo search for flights from Key West Airport to Cancun Airport?
As of July 2025, there is 1 operator available to choose from for flights from Key West Airport to Cancun Airport.
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.
What is the most popular airline from Key West to Cancún?
Based on momondo bookings for flights between Key West and Cancún, the leading airline is American Airlines, making up 100% of the total bookings.

Best airlines flying from Key West to Cancún

Compare and see reviews for airlines that fly from Key West to Cancún with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights

Playa del Carmen

Isla Mujeres

Holbox

Puerto Morelos

Akumal

Puerto Aventuras

Valladolid

Punta Sam

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.