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$297+ Cheap flights from Key Largo, FL to Buenos Aires (BUE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BUE
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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The best prices from Key Largo to Buenos Aires are usually found in May or October, booked 73 days in advance, depart on a Tuesday or Thursday and return on a Monday

Cheap flight deals from Key Largo to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Popular in

December

Cheapest in

May

Round-trip from

$704
(Trip.com)

One-way from

$297
(eDestinos)
High demand for flights, 24% potential price rise
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Best time to find cheap flights, 14% potential price drop
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From Key Largo to Buenos Aires (BUE)
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One-way flight from Key Largo to Buenos Aires (BUE)
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Find flight deals from Key Largo to Buenos Aires

Cheapest flights from Key Largo to Buenos Aires
Explore the most affordable flight options available from Key Largo to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Trip.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/412:15 pmMIA - EZE
1 stop11h 10mMultiple Airlines
Wed 12/113:40 pmEZE - MIA
1 stop15h 35mMultiple Airlines
Deal found 11/20$704
This Expedia deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/246:35 pmMIA - EZE
1 stop28h 50mAvianca
Tue 11/267:10 amEZE - MIA
1 stop22h 05mAvianca
Deal found 11/21$705
This FlightHub deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:30 pmMIA - EZE
Nonstop9h 00mAerolineas Argentinas
Tue 2/410:45 pmEZE - MIA
Nonstop9h 20mAerolineas Argentinas
Deal found 11/21$712
This Kiwi.com deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/108:50 amMIA - AEP
2 stops16h 55mMultiple Airlines
Wed 12/115:55 amAEP - MIA
1 stop13h 00mMultiple Airlines
Deal found 11/21$713
This LATAM Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:10 pmMIA - EZE
1 stop11h 52mLATAM Airlines
Mon 12/95:36 amEZE - MIA
1 stop13h 19mLATAM Airlines
Deal found 11/21$719
This LATAM Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/58:45 pmMIA - AEP
1 stop11h 45mLATAM Airlines
Tue 12/249:05 pmAEP - MIA
2 stops23h 30mLATAM Airlines
Deal found 11/21$719
This Priceline deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:05 amMIA - AEP
1 stop20h 35mAvianca
Tue 3/47:00 amAEP - MIA
1 stop22h 15mAvianca
Deal found 11/21$749
This Kiwi.com deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/44:10 pmMIA - AEP
2 stops18h 30mGOL
Sun 12/85:25 pmAEP - MIA
1 stop24h 30mGOL
Deal found 11/21$769
This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/269:35 pmMIA - EZE
2 stops35h 50mGOL
Wed 12/44:55 pmEZE - MIA
1 stop12h 20mGOL
Deal found 11/20$774
This Gotogate deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/241:30 pmMIA - EZE
1 stop12h 43mCopa Airlines
Sat 12/72:32 pmEZE - MIA
1 stop12h 10mCopa Airlines
Deal found 11/20$822
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2411:50 pmMIA - EZE
Nonstop8h 50mAmerican Airlines
Thu 11/2811:05 pmEZE - MIA
Nonstop9h 30mAmerican Airlines
Deal found 11/20$839
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/26:30 amMIA - EZE
1 stop24h 50mUnited Airlines
Wed 2/511:55 pmEZE - MIA
1 stop22h 27mUnited Airlines
Deal found 11/20$845

Find flights from Key Largo to Buenos Aires within your budget

Customize your flight search to find flights from Key Largo to Buenos Aires 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, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiBuenos Aires

MIA - EZE

MIAEZE

Miami

Wed 12/4

12:15 pm-1:25 am

1 stop11h 10m

Buenos Aires Ministro Pistarini

Wed 12/11

3:40 pm-5:15 am

1 stop15h 35m

$704

MiamiBuenos Aires

MIA - AEP

MIAAEP

Miami

Thu 12/5

8:50 am-3:45 am

2 stops16h 55m

Buenos Aires Jorge Newbery

Tue 12/10

8:55 am-5:15 am

1 stop22h 20m

$704

MiamiBuenos Aires

MIA - EZE

MIAEZE

Miami

Tue 5/6

2:20 pm-5:20 am

2 stops14h 00m

Buenos Aires Ministro Pistarini

Mon 5/19

1:40 am-12:21 pm

1 stop11h 41m

$705

MiamiBuenos Aires

MIA - EZE

MIAEZE

Miami

Fri 4/18

9:10 am-7:15 pm

Nonstop9h 05m

Buenos Aires Ministro Pistarini

Sun 4/27

8:00 am-4:15 pm

Nonstop9h 15m

$712

MiamiBuenos Aires

MIA - AEP

MIAAEP

Miami

Mon 3/10

5:32 pm-4:00 pm

2 stops21h 28m

Buenos Aires Jorge Newbery

Mon 3/17

9:05 pm-3:15 pm

2 stops19h 10m

$712

MiamiBuenos Aires

MIA - EZE

MIAEZE

Miami

Wed 3/19

10:20 am-9:02 am

2 stops21h 42m

Buenos Aires Ministro Pistarini

Fri 3/28

5:36 am-5:55 pm

1 stop13h 19m

$716

MiamiBuenos Aires

MIA - AEP

MIAAEP

Miami

Wed 3/19

10:35 pm-12:30 pm

1 stop12h 55m

Buenos Aires Jorge Newbery

Sun 3/30

5:25 pm-4:35 pm

1 stop24h 10m

$729

MiamiBuenos Aires

MIA - EZE

MIAEZE

Miami

Tue 4/15

10:00 pm-12:20 pm

1 stop13h 20m

Buenos Aires Ministro Pistarini

Sat 4/26

3:15 am-4:35 pm

1 stop14h 20m

$736

MiamiBuenos Aires

MIA - AEP

MIAAEP

Miami

Wed 12/11

7:05 am-5:40 am

1 stop20h 35m

Buenos Aires Jorge Newbery

Tue 3/4

7:00 am-4:50 pm

1 stop11h 50m

$749

MiamiBuenos Aires

MIA - EZE

MIAEZE

Miami

Mon 1/6

7:32 am-10:13 pm

1 stop12h 41m

Buenos Aires Ministro Pistarini

Mon 4/7

3:57 am-1:32 am

1 stop22h 35m

$822

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 22 results
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Best time to book a flight from Key Largo to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Key Largo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Key Largo to Buenos Aires

Get recent, data-driven insights about flights from Key Largo to Buenos Aires including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Key Largo to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Buenos Aires. Price data was last updated on November 15, 2024.

To ensure you get the cheapest price possible for a flight from Key Largo to Buenos Aires, you should look to book at least 73 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Key Largo to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from Key Largo to Buenos Aires (average of $795). Flying from Key Largo to Buenos Aires in February is currently the most expensive (average of $1,114). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KE9 to BUE?

Find hourly flight availability from Key Largo to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key Largo to Buenos Aires as you normally would.

What is the cheapest day to fly from Key Largo to Buenos Aires?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Buenos Aires. Price data was last updated on October 13, 2024.

Travelers seeking maximum savings on their Key Largo to Buenos Aires flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Buenos Aires

Explore weekly flight availability from Key Largo to Buenos Aires. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 21, 2024.

The most flights from KE9 to BUE are scheduled on a Wednesday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated November 21, 2024.
Read through reviews of airlines operating flights from Key Largo to Buenos Aires, such as Avianca, Aerolineas Argentinas and LATAM Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,755 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
8,755 reviews
Delta
8.0
Very good
8,755 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Aerolineas Argentinas
8.0
Very good
908 reviews
Delta
8.0
Very good
8,755 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Copa Airlines
7.8
Good
1,779 reviews
Delta
8.0
Very good
8,755 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

LATAM Airlines
7.5
Good
1,932 reviews
Delta
8.0
Very good
8,755 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
9,172 reviews
Delta
8.0
Very good
8,755 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Key Largo to Buenos Aires one-way?

    $301 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on GOL and Aerolineas Argentinas, with prices starting from $335 and $440, respectively.

  • What are the most popular routes from Key Largo to Buenos Aires?

    The most popular flight routes from Key Largo to Buenos Aires are Miami - Buenos Aires Ministro Pistarini, Miami - Buenos Aires Jorge Newbery and Miami - El Palomar.

  • What are the most reliable airlines from Key Largo to Buenos Aires?

    The top 3 most reliable airlines when flying from Key Largo to Buenos Aires are American Airlines (78%), Aerolineas Argentinas (66%) and Delta (66%).

  • What are the cheapest flights from Key Largo to Buenos Aires?

    Looking at all options, your cheapest flight can be booked for $417. While the most popular route (Miami - Buenos Aires Ministro Pistarini) can be booked for $598 on average our data indicates $3,227 when flying from Key Largo to Buenos Aires.

  • Can I find deals for flights from Key Largo to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Key Largo to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key Largo to Buenos Aires.

  • Can I find deals for business class flights from Key Largo to Buenos Aires?

    Yes. Cheapflights offers flight deals from Key Largo to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Key Largo to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from Key Largo to Buenos Aires (average of $795). Flying from Key Largo to Buenos Aires in February is currently the most expensive (average of $1,114). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Key Largo to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Key Largo to Buenos Aires

Discover the top 9 airlines that operate flights from Key Largo to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Aerolineas ArgentinasCheapest$528Average$838FlexibilityNo cancel feeOn-time59%
United AirlinesCheapest$557Average$809FlexibilityNo cancel feeOn-time69%
DeltaCheapest$567Average$812FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$568Average$826FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$578Average$837FlexibilityNo cancel feeOn-time70%
BoACheapest$647Average$931FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$652Average$846FlexibilityNo cancel feeOn-time81%
GOLCheapest$773Average$1,038FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$781Average$1,097FlexibilityNo cancel feeOn-time71%
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