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Cheap flights from Buenos Aires to Key West from $1,318

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Buenos Aires to Key West departing on 7/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Buenos Aires to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Copa Airlines Logo
9:00 pm - 3:19 pm
EZE
-
EYW
19h 19m
2 stops
Copa Airlines Logo
4:00 pm - 8:00 am
EYW
-
EZE
39h 00m
2 stops
$1,318Copa Airlines
Mon, Jul 27 - Wed, Aug 5
American Airlines Logo
10:35 pm - 1:08 pm
EZE
-
EYW
15h 33m
1 stop
American Airlines Logo
7:40 pm - 8:50 am
EYW
-
EZE
12h 10m
1 stop
$1,320American Airlines
Fri, Jul 3 - Tue, Jul 7
American Airlines Logo
10:35 pm - 1:14 pm
EZE
-
EYW
15h 39m
1 stop
American Airlines Logo
8:09 pm - 8:45 am
EYW
-
EZE
11h 36m
1 stop
$1,364American Airlines
Mon, Jul 27 - Wed, Aug 5
American Airlines Logo
10:35 pm - 4:54 pm
EZE
-
EYW
19h 19m
2 stops
American Airlines Logo
7:40 pm - 8:50 am
EYW
-
EZE
12h 10m
1 stop
$1,381American Airlines
Fri, Jul 3 - Tue, Jul 7
American Airlines Logo
8:30 pm - 4:11 pm
EZE
-
EYW
20h 41m
2 stops
American Airlines Logo
1:49 pm - 8:45 am
EYW
-
EZE
17h 56m
1 stop
$1,420American Airlines
Mon, Jul 27 - Wed, Aug 5
American Airlines Logo
10:00 pm - 7:23 pm
EZE
-
EYW
22h 23m
2 stops
American Airlines Logo
7:33 pm - 8:15 pm
EYW
-
EZE
23h 42m
2 stops
$1,638American Airlines
Fri, Jul 3 - Tue, Jul 7
United Airlines Logo
9:00 pm - 1:29 pm
EZE
-
EYW
41h 29m
2 stops
United Airlines Logo
2:20 pm - 8:00 am
EYW
-
EZE
40h 40m
2 stops
$2,478United Airlines
Sun, Aug 16 - Wed, Aug 19
United Airlines Logo
9:00 pm - 1:29 pm
EZE
-
EYW
41h 29m
2 stops
United Airlines Logo
2:20 pm - 8:00 am
EYW
-
EZE
40h 40m
2 stops
$2,482United Airlines
Sun, Aug 16 - Wed, Aug 19
United Airlines Logo
9:00 pm - 1:29 pm
EZE
-
EYW
41h 29m
2 stops
United Airlines Logo
2:20 pm - 8:00 am
EYW
-
EZE
40h 40m
2 stops
$2,483United Airlines
Sun, Aug 16 - Wed, Aug 19
United Airlines Logo
9:00 pm - 1:29 pm
EZE
-
EYW
41h 29m
2 stops
United Airlines Logo
2:20 pm - 8:00 am
EYW
-
EZE
40h 40m
2 stops
$2,484United Airlines
Sun, Aug 16 - Wed, Aug 19

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American Airlines flights from Buenos Aires to Key West

Our best American Airlines deals on Buenos Aires to Key West flight tickets
American Airlines
Jul 3
EZE10:35 pmBuenos Aires Ministro Pistarini
15h 33m
1 stop
EYW1:08 pmKey West
Jul 7
EYW7:40 pmKey West
12h 10m
1 stop
EZE8:50 amBuenos Aires Ministro Pistarini
$1,320
American Airlines
Jul 27
EZE10:35 pmBuenos Aires Ministro Pistarini
15h 39m
1 stop
EYW1:14 pmKey West
Aug 5
EYW8:09 pmKey West
11h 36m
1 stop
EZE8:45 amBuenos Aires Ministro Pistarini
$1,364
American Airlines
Jul 3
EZE10:35 pmBuenos Aires Ministro Pistarini
19h 19m
2 stops
EYW4:54 pmKey West
Jul 7
EYW7:40 pmKey West
12h 10m
1 stop
EZE8:50 amBuenos Aires Ministro Pistarini
$1,381

United Airlines flights from Buenos Aires to Key West

Our best United Airlines deals on Buenos Aires to Key West flight tickets
United Airlines
Aug 16
EZE9:00 pmBuenos Aires Ministro Pistarini
41h 29m
2 stops
EYW1:29 pmKey West
Aug 19
EYW2:20 pmKey West
40h 40m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
$2,478
United Airlines
Aug 16
EZE9:00 pmBuenos Aires Ministro Pistarini
41h 29m
2 stops
EYW1:29 pmKey West
Aug 19
EYW2:20 pmKey West
40h 40m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
$2,482
United Airlines
Aug 16
EZE9:00 pmBuenos Aires Ministro Pistarini
41h 29m
2 stops
EYW1:29 pmKey West
Aug 19
EYW2:20 pmKey West
40h 40m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
$2,483

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires 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 June 18, 2026.
Use the filters below to find and compare flights from Buenos Aires 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

Mon 7/27

9:00 pm-3:19 pm

2 stops19h 19m

Key West

Wed 8/5

4:00 pm-8:00 am

2 stops39h 00m

$1,318

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Fri 7/3

10:35 pm-1:08 pm

1 stop15h 33m

Key West

Tue 7/7

7:40 pm-8:50 am

1 stop12h 10m

$1,320
Quickest round-trip

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Mon 7/27

10:35 pm-1:14 pm

1 stop15h 39m

Key West

Wed 8/5

8:09 pm-8:45 am

1 stop11h 36m

$1,364

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Fri 7/3

10:35 pm-4:54 pm

2 stops19h 19m

Key West

Tue 7/7

7:40 pm-8:50 am

1 stop12h 10m

$1,381

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Mon 7/27

8:30 pm-4:11 pm

2 stops20h 41m

Key West

Wed 8/5

1:49 pm-8:45 am

1 stop17h 56m

$1,420

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Fri 7/3

10:00 pm-7:23 pm

2 stops22h 23m

Key West

Tue 7/7

7:33 pm-8:15 pm

2 stops23h 42m

$1,638

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 8/16

9:00 pm-1:29 pm

2 stops41h 29m

Key West

Wed 8/19

2:20 pm-8:00 am

2 stops40h 40m

$2,478

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 8/16

9:00 pm-1:29 pm

2 stops41h 29m

Key West

Wed 8/19

2:20 pm-8:00 am

2 stops40h 40m

$2,482

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 8/16

9:00 pm-1:29 pm

2 stops41h 29m

Key West

Wed 8/19

2:20 pm-8:00 am

2 stops40h 40m

$2,483

Buenos AiresKey West

EZE - EYW

EZEEYW

Buenos Aires Ministro Pistarini

Sun 8/16

9:00 pm-1:29 pm

2 stops41h 29m

Key West

Wed 8/19

2:20 pm-8:00 am

2 stops40h 40m

$2,484

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Buenos Aires to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Buenos Aires to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buenos Aires to Key West (BUE to EYW) flight deals and tips

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

Fastest flight time

19h 19m

Direct flights

None
The fastest flight from Buenos Aires to Key West takes 19h 19m
There are no direct flights from Buenos Aires to Key West. There are no popular flight routes from Buenos Aires to Key West.
Search flight deals

Frequently asked questions about flying from Buenos Aires to Key West

  • How far is Buenos Aires to Key West by plane?

    The distance between Buenos Aires and Key West is about 4363.9 mi. Flights usually cover this in 19h 19m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Buenos Aires to Key West Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buenos Aires to Key West Airport.

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

    The travel and health documents you'll need for your trip to Key West 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 Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Buenos Aires to Key West

  • How do I get Price Alerts for flights from Buenos Aires to Key West?

    Confirm your travel details to search for the latest offers for flights from Buenos Aires to Key West. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Buenos Aires to Key West with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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 Buenos Aires to Key West?

It is quick and easy to find Buenos Aires to Key West 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 Key West that suits you.

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

Yes. All flights to Key West from Buenos Aires on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Key West from Buenos Aires.

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

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

An easier way to manage your Key West trip

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Sat 7/18
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