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$525+ Cheap flights from Milwaukee (MKE) 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BUE
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap flight deals from Milwaukee to Buenos Aires

Cheapest flights from Milwaukee to Buenos Aires
Explore the most affordable flight options available from Milwaukee to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/208:15 pmMKE - EZE
3 stops47h 45mMultiple Airlines
Thu 1/11:40 amEZE - MKE
2 stops20h 40mMultiple Airlines
Deal found 12/17$2,545
This Priceline deal was found by Cheapflights users on 12/17. 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.
Sat 12/203:38 pmMKE - EZE
2 stops19h 07mLATAM Airlines
Fri 1/211:00 amEZE - MKE
2 stops15h 51mLATAM Airlines
Deal found 12/17$2,763
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Sat 12/206:29 amMKE - EZE
1 stop23h 46mAmerican Airlines
Fri 1/210:30 pmEZE - MKE
1 stop15h 33mAmerican Airlines
Deal found 12/17$3,008

Find flight deals from Milwaukee to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) 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 December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$936
(Delta)

One-way from

$525
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,510
Provider with most accurate pricing for Milwaukee-Mitchell-Buenos Aires (BUE) flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Buenos Aires (BUE) flights.
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From Milwaukee-Mitchell to Buenos Aires (BUE)
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One-way flight from Milwaukee-Mitchell to Buenos Aires (BUE)
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Highest demand for flights based on searches. 3% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Milwaukee 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 2,558,603 searches. Data last updated December 17, 2025.
Use the filters below to find and compare flights from Milwaukee to Buenos Aires that are best for you.

Fly from

Milwaukee

Fly to

Buenos Aires

Route

Depart

Return

Price

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Mon 3/2

10:10 am-6:05 am

2 stops40h 55m

Buenos Aires Ministro Pistarini

Mon 3/9

8:00 am-11:58 am

2 stops29h 58m

$936

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Sun 3/1

6:29 pm-9:00 am

1 stop35h 31m

Buenos Aires Ministro Pistarini

Mon 3/9

10:25 pm-8:06 pm

1 stop23h 41m

$944

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Thu 2/19

12:20 pm-9:00 am

1 stop17h 40m

Buenos Aires Ministro Pistarini

Mon 3/9

8:00 am-11:51 pm

2 stops17h 51m

$1,010

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Wed 2/4

1:18 pm-10:15 am

2 stops17h 57m

Buenos Aires Ministro Pistarini

Tue 2/24

10:25 pm-4:08 pm

2 stops20h 43m

$1,030

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Thu 2/26

7:03 am-10:15 am

1 stop24h 12m

Buenos Aires Ministro Pistarini

Sat 3/7

10:25 pm-7:06 pm

1 stop23h 41m

$1,066

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Thu 2/26

7:03 am-10:15 am

1 stop24h 12m

Buenos Aires Ministro Pistarini

Fri 3/6

10:25 pm-8:36 pm

1 stop25h 11m

$1,066

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Wed 2/4

12:51 pm-9:10 am

2 stops17h 19m

Buenos Aires Ministro Pistarini

Tue 2/24

10:25 pm-10:59 am

1 stop15h 34m

$1,094

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Wed 1/28

7:50 am-9:20 am

1 stop22h 30m

Buenos Aires Ministro Pistarini

Thu 2/5

11:55 pm-2:55 pm

1 stop18h 00m

$1,101

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Thu 2/26

7:03 am-10:15 am

1 stop24h 12m

Buenos Aires Ministro Pistarini

Wed 3/4

10:25 pm-8:36 pm

1 stop25h 11m

$1,102

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Mon 1/26

6:00 am-7:20 am

2 stops22h 20m

Buenos Aires Ministro Pistarini

Thu 2/5

11:55 pm-2:55 pm

1 stop18h 00m

$1,105

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 19 results
1
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Compare providers for flights from Milwaukee to Buenos Aires

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to Buenos Aires in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Milwaukee-Buenos Aires flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Milwaukee-Buenos Aires flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Milwaukee-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Milwaukee-Buenos Aires flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Milwaukee-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Milwaukee to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Milwaukee 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.

Cheapflights Insights

Everything you need to know about your flight from Milwaukee to Buenos Aires

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

Currently, October is the cheapest month in which you can book a flight from Milwaukee to Buenos Aires (average of $378). Flying from Milwaukee to Buenos Aires in June is currently the most expensive (average of $1,144). 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.

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 December 17, 2025.
Peruse reviews from past customers who have flown with Delta from Milwaukee to Buenos Aires to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Milwaukee 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 airport do you fly from for flights from Milwaukee to Buenos Aires?

    Milwaukee-Mitchell (MKE) is the airport you will fly out of if you book a flight from Milwaukee to Buenos Aires. You should not have trouble finding flights to Buenos Aires from Milwaukee-Mitchell; the airport handles an average of 0 outbound flights to Buenos Aires per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Milwaukee airport to Buenos Aires. It is only a 6.4 mi journey to Milwaukee-Mitchell (MKE) from Milwaukee’s city center.

  • How long is the flight from Milwaukee to Buenos Aires?

    For as low as $1,010, Delta can have you in Buenos Aires from Milwaukee in 17h 40m. Milwaukee and Buenos Aires are separated by a distance of 5680 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Milwaukee to Buenos Aires round-trip?

    Delta, at $1,081, was found to be the cheapest airline from Milwaukee to Buenos Aires.. Delta is priced at 11% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Milwaukee 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 Milwaukee to Buenos Aires?

    Currently, October is the cheapest month in which you can book a flight from Milwaukee to Buenos Aires (average of $378). Flying from Milwaukee to Buenos Aires in June is currently the most expensive (average of $1,144). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Milwaukee to Buenos Aires

Discover the top airline that operate flights from Milwaukee 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 2,558,603 searches. Data last updated December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,081Average$1,393FlexibilityNo cancel feeOn-timeN/A

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