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Cheap flights from Key West to Mexico from $190

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 Mexico departing on 1/31. 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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0 bags

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Find the cheapest flights from Key West to Mexico

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:20 pm - 1:31 pmEYW-CUN
25h 11m1 stop
Multiple Airlines Logo
3:40 pm - 9:09 amCUN-EYW
17h 29m2 stops
$406Multiple Airlines
Find Deal
Sun, Jan 4 - Sun, Jan 11
Delta Logo
7:40 am - 9:20 pmEYW-CUN
13h 40m1 stop
Delta Logo
8:00 am - 2:07 pmCUN-EYW
6h 07m1 stop
$429Delta
Find Deal
Tue, Dec 9 - Tue, Dec 16
American Airlines Logo
6:33 pm - 10:50 amEYW-CUN
16h 17m2 stops
American Airlines Logo
1:16 pm - 9:46 pmCUN-EYW
8h 30m1 stop
$433American Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 16
Multiple Airlines Logo
12:20 pm - 1:31 pmEYW-CUN
25h 11m1 stop
Multiple Airlines Logo
10:13 am - 12:26 pmCUN-EYW
26h 13m1 stop
$436Multiple Airlines
Find Deal
Sun, Jan 4 - Sun, Jan 11
American Airlines Logo
6:31 am - 9:25 amEYW-CUN
3h 54m1 stop
American Airlines Logo
3:00 pm - 11:59 pmCUN-EYW
7h 59m1 stop
$493American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
6:31 am - 9:25 amEYW-CUN
3h 54m1 stop
American Airlines Logo
11:50 am - 11:59 pmCUN-EYW
11h 09m2 stops
$498American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
6:33 pm - 10:50 amEYW-CUN
16h 17m2 stops
American Airlines Logo
11:50 am - 9:46 pmCUN-EYW
9h 56m2 stops
$528American Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 16
United Airlines Logo
4:15 pm - 1:23 pmEYW-CZM
46h 08m2 stops
United Airlines Logo
2:25 pm - 3:17 pmCZM-EYW
23h 52m2 stops
$666United Airlines
Find Deal
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
4:05 pm - 1:23 pmEYW-CZM
22h 18m2 stops
United Airlines Logo
2:25 pm - 3:24 pmCZM-EYW
23h 59m2 stops
$698United Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 16
Aeromexico Logo
7:10 am - 4:40 pmEYW-MEX
10h 30m2 stops
Aeromexico Logo
8:40 am - 7:40 pmMEX-EYW
10h 00m1 stop
$752Aeromexico
Find Deal
Fri, Feb 6 - Mon, Feb 9

Delta flights from Key West to Mexico

Our best Delta deals on Key West to Mexico flight tickets
Delta
Dec 9
EYW7:40 amKey West
13h 40m
1 stop
CUN9:20 pmCancun
Dec 16
CUN8:00 amCancun
6h 07m
1 stop
EYW2:07 pmKey West
$429
Find similar
Delta
Feb 2
EYW6:06 pmKey West
23h 55m
2 stops
OAX5:01 pmOaxaca Xoxocotlan
Feb 5
OAX6:00 amOaxaca Xoxocotlan
12h 40m
2 stops
EYW7:40 pmKey West
$631
Find similar
Delta
Feb 6
EYW6:06 pmKey West
18h 14m
1 stop
MEX11:20 amMexico City Benito Juarez
Feb 9
MEX8:40 amMexico City Benito Juarez
7h 31m
1 stop
EYW5:11 pmKey West
$635
Find similar

American Airlines flights from Key West to Mexico

Our best American Airlines deals on Key West to Mexico flight tickets
American Airlines
Dec 9
EYW6:33 pmKey West
16h 17m
2 stops
CUN10:50 amCancun
Dec 16
CUN1:16 pmCancun
8h 30m
1 stop
EYW9:46 pmKey West
$433
Find similar
American Airlines
Apr 21
EYW12:13 pmKey West
4h 09m
1 stop
CUN3:22 pmCancun
Apr 24
CUN12:45 pmCancun
4h 36m
1 stop
EYW6:21 pmKey West
$435
Find similar
American Airlines
Apr 21
EYW12:13 pmKey West
4h 09m
1 stop
CUN3:22 pmCancun
Apr 24
CUN4:25 pmCancun
17h 28m
2 stops
EYW10:53 amKey West
$480
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Key West to Mexico 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 November 20, 2025.
Use the filters below to find and compare flights from Key West to Mexico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sun 1/4

12:20 pm-1:31 pm

1 stop25h 11m

Cancun

Sun 1/11

3:40 pm-9:09 am

2 stops17h 29m

$406

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 12/9

7:40 am-9:20 pm

1 stop13h 40m

Cancun

Tue 12/16

8:00 am-2:07 pm

1 stop6h 07m

$429

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 12/9

6:33 pm-10:50 am

2 stops16h 17m

Cancun

Tue 12/16

1:16 pm-9:46 pm

1 stop8h 30m

$433

Key WestCancún

EYW - CUN

EYWCUN

Key West

Sun 1/4

12:20 pm-1:31 pm

1 stop25h 11m

Cancun

Sun 1/11

10:13 am-12:26 pm

1 stop26h 13m

$436

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 3/10

6:31 am-9:25 am

1 stop3h 54m

Cancun

Wed 3/11

3:00 pm-11:59 pm

1 stop7h 59m

$493

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 3/10

6:31 am-9:25 am

1 stop3h 54m

Cancun

Wed 3/11

11:50 am-11:59 pm

2 stops11h 09m

$498

Key WestCancún

EYW - CUN

EYWCUN

Key West

Tue 12/9

6:33 pm-10:50 am

2 stops16h 17m

Cancun

Tue 12/16

11:50 am-9:46 pm

2 stops9h 56m

$528

Key WestCozumel

EYW - CZM

EYWCZM

Key West

Fri 1/23

4:15 pm-1:23 pm

2 stops46h 08m

Cozumel

Mon 1/26

2:25 pm-3:17 pm

2 stops23h 52m

$666

Key WestCozumel

EYW - CZM

EYWCZM

Key West

Tue 12/9

4:05 pm-1:23 pm

2 stops22h 18m

Cozumel

Tue 12/16

2:25 pm-3:24 pm

2 stops23h 59m

$698

Key WestMexico City

EYW - MEX

EYWMEX

Key West

Fri 2/6

7:10 am-4:40 pm

2 stops10h 30m

Mexico City Benito Juarez

Mon 2/9

8:40 am-7:40 pm

1 stop10h 00m

$752

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Mexico from

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

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 day to depart on your flight to Mexico?

The cheapest day to depart on your flight to Mexico is on a Monday when prices can be found for as low as $439. This is often the case because there is less demand to fly during this day of the week. 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 Mexico.

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

Our data shows that the cheapest Key West to Mexico flights are usually those with departure times at noon. Our users have found flights to Mexico at noon for as low as $505. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $546 on average. Flights to Mexico from Key West in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Key West to Mexico flight deals and tips

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

Direct flights

None
There are no direct flights from Key West to Mexico. There are no popular flight routes from Key West to Mexico.
Search flight deals

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

    Prices for flights from Key West Airport to Mexico were last updated today.

  • How many operators does momondo search for flights from Key West Airport to Mexico?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Key West Airport to Mexico.

  • What documentation or ID do you need to fly to Mexico?

    The travel and health documents required for your trip to Mexico can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Mexico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Key West to Mexico

Compare and see reviews for airlines that fly from Key West to Mexico with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $419Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Mexico from Key West.

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

Yes. momondo enables you to select and highlight flights to Mexico from Key West with this policy.

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

Once you have performed a search for Key West to Mexico flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Mexico, momondo offers a useful price alert feature which will track prices for flights to Mexico from Key West and alert you when they change.

An easier way to manage your Mexico trip

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Sat 12/20
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Find better results for your trip to Mexico

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Popular flights according to clicks in the last 7 days on momondo
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