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Cheap flights from South America to Key West from $1,394

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from South America to Key West departing on 5/24. 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 South America to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:35 pm - 1:07 pm
EZE
-
EYW
17h 32m
1 stop
American Airlines Logo
11:28 am - 7:05 am
EYW
-
EZE
18h 37m
1 stop
$1,394American Airlines
Sun, May 24 - Sun, May 31
American Airlines Logo
8:35 pm - 4:07 pm
EZE
-
EYW
20h 32m
2 stops
American Airlines Logo
7:40 pm - 8:35 am
EYW
-
EZE
11h 55m
1 stop
$1,450American Airlines
Sun, May 24 - Sun, May 31
American Airlines Logo
8:35 pm - 4:07 pm
EZE
-
EYW
20h 32m
2 stops
American Airlines Logo
1:39 pm - 7:05 am
EYW
-
EZE
16h 26m
2 stops
$1,521American Airlines
Sun, May 24 - Sun, May 31
United Airlines Logo
9:00 pm - 3:07 pm
EZE
-
EYW
43h 07m
2 stops
United Airlines Logo
2:26 pm - 8:00 am
EYW
-
EZE
40h 34m
2 stops
$1,929United Airlines
Fri, Jun 5 - Tue, Jun 9
United Airlines Logo
9:00 pm - 3:07 pm
EZE
-
EYW
43h 07m
2 stops
United Airlines Logo
2:26 pm - 8:00 am
EYW
-
EZE
40h 34m
2 stops
$1,937United Airlines
Fri, Jun 5 - Tue, Jun 9
United Airlines Logo
9:00 pm - 3:07 pm
EZE
-
EYW
43h 07m
2 stops
United Airlines Logo
2:26 pm - 8:00 am
EYW
-
EZE
40h 34m
2 stops
$2,545United Airlines
Sun, May 31 - Thu, Jun 4
United Airlines Logo
9:00 pm - 3:07 pm
EZE
-
EYW
43h 07m
2 stops
United Airlines Logo
2:26 pm - 8:00 am
EYW
-
EZE
40h 34m
2 stops
$2,550United Airlines
Sun, May 31 - Thu, Jun 4

United Airlines flights from South America to Key West

Our best United Airlines deals on South America to Key West flight tickets
United Airlines
Apr 12
MDE9:45 amMedellín Jose Maria Cordova Intl
29h 12m
1 stop
EYW3:57 pmKey West
Apr 16
EYW6:22 pmKey West
27h 48m
2 stops
MDE9:10 pmMedellín Jose Maria Cordova Intl
$1,646
United Airlines
Apr 12
MDE9:45 amMedellín Jose Maria Cordova Intl
28h 06m
2 stops
EYW2:51 pmKey West
Apr 16
EYW4:38 pmKey West
29h 32m
1 stop
MDE9:10 pmMedellín Jose Maria Cordova Intl
$1,654
United Airlines
Apr 12
MDE9:45 amMedellín Jose Maria Cordova Intl
52h 06m
2 stops
EYW2:51 pmKey West
Apr 16
EYW4:38 pmKey West
29h 32m
1 stop
MDE9:10 pmMedellín Jose Maria Cordova Intl
$1,866

American Airlines flights from South America to Key West

Our best American Airlines deals on South America to Key West flight tickets
American Airlines
May 24
EZE8:35 pmBuenos Aires Ministro Pistarini
17h 32m
1 stop
EYW1:07 pmKey West
May 31
EYW11:28 amKey West
18h 37m
1 stop
EZE7:05 amBuenos Aires Ministro Pistarini
$1,394
American Airlines
May 24
EZE8:35 pmBuenos Aires Ministro Pistarini
20h 32m
2 stops
EYW4:07 pmKey West
May 31
EYW7:40 pmKey West
11h 55m
1 stop
EZE8:35 amBuenos Aires Ministro Pistarini
$1,450
American Airlines
May 24
EZE8:35 pmBuenos Aires Ministro Pistarini
20h 32m
2 stops
EYW4:07 pmKey West
May 31
EYW1:39 pmKey West
16h 26m
2 stops
EZE7:05 amBuenos Aires Ministro Pistarini
$1,521

momondo Fare Finder

 
Customize your flight search to find flights from South America to Key West 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 April 11, 2026.
Use the filters below to find and compare flights from South America to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 5/24

8:35 pm-1:07 pm

1 stop17h 32m

Key West

Sun 5/31

11:28 am-7:05 am

1 stop18h 37m

$1,394
Quickest round-trip

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 5/24

8:35 pm-4:07 pm

2 stops20h 32m

Key West

Sun 5/31

7:40 pm-8:35 am

1 stop11h 55m

$1,450

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 5/24

8:35 pm-4:07 pm

2 stops20h 32m

Key West

Sun 5/31

1:39 pm-7:05 am

2 stops16h 26m

$1,521

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Fri 6/5

9:00 pm-3:07 pm

2 stops43h 07m

Key West

Tue 6/9

2:26 pm-8:00 am

2 stops40h 34m

$1,929

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Fri 6/5

9:00 pm-3:07 pm

2 stops43h 07m

Key West

Tue 6/9

2:26 pm-8:00 am

2 stops40h 34m

$1,937

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 5/31

9:00 pm-3:07 pm

2 stops43h 07m

Key West

Thu 6/4

2:26 pm-8:00 am

2 stops40h 34m

$2,545

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 5/31

9:00 pm-3:07 pm

2 stops43h 07m

Key West

Thu 6/4

2:26 pm-8:00 am

2 stops40h 34m

$2,550

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Key West from

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

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 06m

Direct flights

None
The fastest flight from South America to Key West takes 28h 06m
There are no direct flights from South America to Key West. There are no popular flight routes from South America to Key West.
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Frequently asked questions about flying 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.

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
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.

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