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

Delta 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 September 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.

$219 Cheap Flights from Key West to Cancún in 2025/26

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Find the cheapest flights from Key West to Cancún

Round-trip

One-way

Cheap round-trip flights

8:55 am - 8:04 amEYW-CUN

24h 09m1 stop

9:09 am - 8:15 amCUN-EYW

22h 06m1 stop

$358Multiple Airlines

Find Deal

Fri, Oct 17 - Wed, Oct 22

8:55 am - 8:04 amEYW-CUN

24h 09m1 stop

9:09 am - 8:15 amCUN-EYW

22h 06m1 stop

$363Multiple Airlines

Find Deal

Sun, Oct 19 - Wed, Oct 22

8:55 am - 8:04 amEYW-CUN

24h 09m1 stop

9:09 am - 8:15 amCUN-EYW

22h 06m1 stop

$370Multiple Airlines

Find Deal

Fri, Oct 17 - Thu, Oct 23

8:55 am - 8:04 amEYW-CUN

24h 09m1 stop

9:09 am - 8:15 amCUN-EYW

22h 06m1 stop

$374Multiple Airlines

Find Deal

Sun, Oct 19 - Thu, Oct 23

6:17 pm - 10:50 amEYW-CUN

16h 33m1 stop

8:00 am - 5:12 pmCUN-EYW

9h 12m1 stop

$445Delta

Find Deal

Sat, Nov 8 - Fri, Nov 14

7:00 am - 12:50 pmEYW-CUN

6h 50m1 stop

10:10 am - 5:13 pmCUN-EYW

6h 03m1 stop

$480Aeromexico

Find Deal

Tue, Mar 10 - Wed, Mar 11

11:22 am - 3:20 pmEYW-CUN

4h 58m1 stop

4:25 pm - 7:22 pmCUN-EYW

25h 57m1 stop

$488American Airlines

Find Deal

Wed, Oct 15 - Wed, Oct 22

7:00 am - 11:28 pmEYW-CUN

17h 28m2 stops

12:40 pm - 7:44 pmCUN-EYW

6h 04m1 stop

$496Aeromexico

Find Deal

Tue, Mar 10 - Wed, Mar 11

11:22 am - 3:25 pmEYW-CUN

5h 03m1 stop

12:45 pm - 7:22 pmCUN-EYW

5h 37m1 stop

$516American Airlines

Find Deal

Fri, Oct 17 - Tue, Oct 21

6:17 pm - 8:45 pmEYW-CUN

27h 28m2 stops

7:05 am - 8:06 pmCUN-EYW

12h 01m2 stops

$533Delta

Find Deal

Thu, Oct 16 - Tue, Oct 21

Delta flights from Key West to Cancún

Our best Delta deals on Key West to Cancún flight tickets

Delta

Nov 8

EYW6:17 pmKey West

16h 33m

1 stop

CUN10:50 amCancun

Nov 14

CUN8:00 amCancun

9h 12m

1 stop

EYW5:12 pmKey West

$445

Find similar

Delta

Oct 16

EYW6:17 pmKey West

27h 28m

2 stops

CUN8:45 pmCancun

Oct 21

CUN7:05 amCancun

12h 01m

2 stops

EYW8:06 pmKey West

$533

Find similar

Delta

Sep 30

EYW2:00 pmKey West

7h 15m

1 stop

CUN8:15 pmCancun

Oct 3

CUN12:35 pmCancun

6h 32m

1 stop

EYW8:07 pmKey West

$534

Find similar

American Airlines flights from Key West to Cancún

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

American Airlines

Oct 15

EYW11:22 amKey West

4h 58m

1 stop

CUN3:20 pmCancun

Oct 22

CUN4:25 pmCancun

25h 57m

1 stop

EYW7:22 pmKey West

$488

Find similar

American Airlines

Oct 17

EYW11:22 amKey West

5h 03m

1 stop

CUN3:25 pmCancun

Oct 21

CUN12:45 pmCancun

5h 37m

1 stop

EYW7:22 pmKey West

$516

Find similar

American Airlines

Nov 18

EYW7:31 amKey West

6h 41m

1 stop

CUN2:12 pmCancun

Nov 22

CUN11:50 amCancun

7h 38m

1 stop

EYW7:28 pmKey West

$554

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 10/17

8:55 am-8:04 am

1 stop24h 09m

Cancun

Wed 10/22

9:09 am-8:15 am

1 stop22h 06m

$358

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sun 10/19

8:55 am-8:04 am

1 stop24h 09m

Cancun

Wed 10/22

9:09 am-8:15 am

1 stop22h 06m

$363

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 10/17

8:55 am-8:04 am

1 stop24h 09m

Cancun

Thu 10/23

9:09 am-8:15 am

1 stop22h 06m

$370

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sun 10/19

8:55 am-8:04 am

1 stop24h 09m

Cancun

Thu 10/23

9:09 am-8:15 am

1 stop22h 06m

$374

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sat 11/8

6:17 pm-10:50 am

1 stop16h 33m

Cancun

Fri 11/14

8:00 am-5:12 pm

1 stop9h 12m

$445

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 3/10

7:00 am-12:50 pm

1 stop6h 50m

Cancun

Wed 3/11

10:10 am-5:13 pm

1 stop6h 03m

$480

Key WestCancún

EYW - CUN

EYWCUN

Key West

Wed 10/15

11:22 am-3:20 pm

1 stop4h 58m

Cancun

Wed 10/22

4:25 pm-7:22 pm

1 stop25h 57m

$488

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 3/10

7:00 am-11:28 pm

2 stops17h 28m

Cancun

Wed 3/11

12:40 pm-7:44 pm

1 stop6h 04m

$496

Key WestCancún

EYW - CUN

EYWCUN

Key West

Fri 10/17

11:22 am-3:25 pm

1 stop5h 03m

Cancun

Tue 10/21

12:45 pm-7:22 pm

1 stop5h 37m

$516

Key WestCancún

EYW - CUN

EYWCUN

Key West

Thu 10/16

6:17 pm-8:45 pm

2 stops27h 28m

Cancun

Tue 10/21

7:05 am-8:06 pm

2 stops12h 01m

$533

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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

Direct flights	None

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 4h 58m.
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 September 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 $419	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.