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

United Airlines, Delta, and British Airways are the most popular carriers operating from South America to Key West

When did momondo last update prices for flights from South America to Key West Airport?

Prices for flights from South America to Key West Airport are refreshed on a daily basis.

How old do you have to be to fly from South America to Key West 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 South America to Key West Airport.

What documentation or ID do you need to fly to Key West Airport?

The travel and health documents required for your trip to Key West Airport 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 Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$972 Cheap Flights from South America to Key West in 2025/26

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0 bags

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Find the cheapest flights from South America to Key West

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:45 am - 3:00 pm

MDE

EYW

52h 15m2 stops

6:40 pm - 10:05 pm

EYW

MDE

27h 25m2 stops

$972United Airlines

Fri, Feb 20 - Mon, Feb 23

10:45 am - 3:17 pm

MDE

EYW

28h 32m2 stops

4:15 pm - 10:05 pm

EYW

MDE

53h 50m2 stops

$973United Airlines

Fri, Feb 6 - Mon, Feb 9

6:33 am - 3:57 pm

ASU

EYW

58h 24m2 stops

4:38 pm - 5:33 am

EYW

ASU

35h 55m2 stops

$1,358United Airlines

Mon, Apr 13 - Fri, Apr 17

6:33 am - 2:51 pm

ASU

EYW

33h 18m2 stops

5:23 pm - 12:05 am

EYW

ASU

29h 42m2 stops

$2,013United Airlines

Mon, Apr 13 - Fri, Apr 17

9:00 pm - 4:10 pm

EZE

EYW

20h 10m1 stop

4:51 pm - 8:00 am

EYW

EZE

14h 09m1 stop

$2,314United Airlines

Sun, May 3 - Thu, May 7

9:00 pm - 2:59 pm

EZE

EYW

42h 59m2 stops

4:51 pm - 8:00 am

EYW

EZE

14h 09m1 stop

$2,317United Airlines

Sun, May 3 - Thu, May 7

9:00 pm - 2:59 pm

EZE

EYW

42h 59m2 stops

3:52 pm - 8:00 am

EYW

EZE

63h 08m2 stops

$2,369United Airlines

Sun, May 3 - Thu, May 7

9:00 pm - 2:59 pm

EZE

EYW

42h 59m2 stops

3:52 pm - 8:00 am

EYW

EZE

39h 08m2 stops

$2,373United Airlines

Sun, May 3 - Thu, May 7

6:33 am - 4:42 pm

ASU

EYW

35h 09m2 stops

4:38 pm - 12:05 am

EYW

ASU

54h 27m2 stops

$7,223United Airlines

Mon, Apr 13 - Fri, Apr 17

United Airlines flights from South America to Key West

Our best United Airlines deals on South America to Key West flight tickets

United Airlines

Feb 20

MDE10:45 amMedellín Jose Maria Cordova Intl

28h 06m

2 stops

EYW2:51 pmKey West

Feb 23

EYW3:56 pmKey West

30h 09m

2 stops

MDE10:05 pmMedellín Jose Maria Cordova Intl

$962

Find similar

United Airlines

Feb 20

MDE10:45 amMedellín Jose Maria Cordova Intl

52h 15m

2 stops

EYW3:00 pmKey West

Feb 23

EYW6:40 pmKey West

27h 25m

2 stops

MDE10:05 pmMedellín Jose Maria Cordova Intl

$972

Find similar

United Airlines

Feb 6

MDE10:45 amMedellín Jose Maria Cordova Intl

28h 32m

2 stops

EYW3:17 pmKey West

Feb 9

EYW4:15 pmKey West

53h 50m

2 stops

MDE10:05 pmMedellín Jose Maria Cordova Intl

$973

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MedellínKey West

MDE - EYW

MDEEYW

Medellín Jose Maria Cordova Intl

Fri 2/20

10:45 am-3:00 pm

2 stops52h 15m

Key West

Mon 2/23

6:40 pm-10:05 pm

2 stops27h 25m

$972

MedellínKey West

MDE - EYW

MDEEYW

Medellín Jose Maria Cordova Intl

Fri 2/6

10:45 am-3:17 pm

2 stops28h 32m

Key West

Mon 2/9

4:15 pm-10:05 pm

2 stops53h 50m

$973

AsuncionKey West

ASU - EYW

ASUEYW

Asuncion Silvio Pettirossi

Mon 4/13

6:33 am-3:57 pm

2 stops58h 24m

Key West

Fri 4/17

4:38 pm-5:33 am

2 stops35h 55m

$1,358

AsuncionKey West

ASU - EYW

ASUEYW

Asuncion Silvio Pettirossi

Mon 4/13

6:33 am-2:51 pm

2 stops33h 18m

Key West

Fri 4/17

5:23 pm-12:05 am

2 stops29h 42m

$2,013

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 5/3

9:00 pm-4:10 pm

1 stop20h 10m

Key West

Thu 5/7

4:51 pm-8:00 am

1 stop14h 09m

$2,314

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 5/3

9:00 pm-2:59 pm

2 stops42h 59m

Key West

Thu 5/7

4:51 pm-8:00 am

1 stop14h 09m

$2,317

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 5/3

9:00 pm-2:59 pm

2 stops42h 59m

Key West

Thu 5/7

3:52 pm-8:00 am

2 stops63h 08m

$2,369

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 5/3

9:00 pm-2:59 pm

2 stops42h 59m

Key West

Thu 5/7

3:52 pm-8:00 am

2 stops39h 08m

$2,373

AsuncionKey West

ASU - EYW

ASUEYW

Asuncion Silvio Pettirossi

Mon 4/13

6:33 am-4:42 pm

2 stops35h 09m

Key West

Fri 4/17

4:38 pm-12:05 am

2 stops54h 27m

$7,223

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 1/18

10:05 pm-3:17 pm

2 stops43h 12m

$5,444

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from South America to Key West

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

Can stopping save me money on South America to Key West flights?

You could potentially save up to 31% on your flight if you consider stops on a South America to Key West flight.

Cheap South America to Key West flight deals and tips

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

Fastest flight time	28h 32m
Direct flights	None

The fastest flight from South America to Key West takes 28h 32m

There are no direct flights from South America to Key West. There are no popular flight routes from South America to Key West.

Search flight deals

When did momondo last update prices for flights from South America to Key West Airport?
Prices for flights from South America to Key West Airport are refreshed on a daily basis.
How old do you have to be to fly from South America to Key West 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 South America to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The travel and health documents required for your trip to Key West Airport 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 Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Big Pine Key

Little Torch Key

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from South America to Key West. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for South America to Key West flights to just show those with flexible booking policies.

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

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 South America to Key West.

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

Yes momondo offers price alerts on flights to Key West from South America. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.