HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Buenos Aires

$455+ 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BUE
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Milwaukee to Buenos Aires with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 August 18, 2025.

Round-trip from

$1,025
(LATAM Airlines)

One-way from

$455
(Avianca)

Popular in

December

Cheapest in

September

Average price

$1,415
From Milwaukee-Mitchell to Buenos Aires (BUE)
Search Deals
One-way flight from Milwaukee-Mitchell to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($391 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($150 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find 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 August 18, 2025.

This LATAM Airlines deal was found by Cheapflights users on 8/17. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:25 amMKE - EZE
2 stops16h 55mLATAM Airlines
Mon 12/17:55 amEZE - MKE
2 stops18h 30mLATAM Airlines
Deal found 8/17$1,025
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/255:59 pmMKE - EZE
2 stops18h 01mDelta
Wed 11/58:55 pmEZE - MKE
1 stop15h 31mDelta
Deal found 8/18$1,065
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:45 pmMKE - EZE
1 stop15h 15mDelta
Sun 11/234:05 amEZE - MKE
2 stops22h 20mDelta
Deal found 8/17$1,101
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Tue 9/307:15 pmMKE - EZE
2 stops34h 45mUnited Airlines
Tue 10/79:00 pmEZE - MKE
1 stop15h 06mUnited Airlines
Deal found 8/16$1,105
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:25 pmMKE - EZE
2 stops18h 30mDelta
Mon 12/111:55 pmEZE - MKE
1 stop16h 49mDelta
Deal found 8/17$1,120
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 10/28:20 amMKE - EZE
2 stops21h 40mUnited Airlines
Thu 10/99:00 pmEZE - MKE
2 stops39h 11mUnited Airlines
Deal found 8/18$1,121
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/62:45 pmMKE - EZE
1 stop15h 15mDelta
Tue 12/94:05 amEZE - MKE
2 stops22h 20mDelta
Deal found 8/17$1,141
This United Airlines deal was found by Cheapflights users on 8/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:13 pmMKE - EZE
2 stops35h 07mUnited Airlines
Sun 11/3011:55 pmEZE - MKE
2 stops37h 24mUnited Airlines
Deal found 8/17$1,142
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2210:25 amMKE - EZE
1 stop19h 35mDelta
Mon 12/111:55 pmEZE - MKE
1 stop19h 22mDelta
Deal found 8/17$1,145
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:20 pmMKE - EZE
2 stops18h 55mDelta
Sat 11/2210:25 pmEZE - MKE
2 stops20h 52mDelta
Deal found 8/17$1,146
This LATAM Airlines deal was found by Cheapflights users on 8/16. 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.
Tue 9/305:19 pmMKE - EZE
1 stop14h 26mDelta
Tue 10/78:10 pmEZE - MKE
1 stop16h 51mDelta
Deal found 8/16$1,175

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 August 18, 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

Thu 11/20

10:25 am-6:20 am

2 stops16h 55m

Buenos Aires Ministro Pistarini

Mon 12/1

7:55 am-11:25 pm

2 stops18h 30m

$1,025

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Sat 10/25

5:59 pm-2:00 pm

2 stops18h 01m

Buenos Aires Ministro Pistarini

Wed 11/5

8:55 pm-1:09 pm

1 stop19h 14m

$1,065

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Sat 10/25

5:59 pm-2:55 pm

2 stops18h 56m

Buenos Aires Ministro Pistarini

Wed 11/5

7:55 am-11:55 pm

2 stops19h 00m

$1,065

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Thu 11/27

12:04 pm-3:50 pm

2 stops24h 46m

$455

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Tue 12/2

11:57 am-1:39 pm

3 stops46h 42m

$458

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Sat 11/29

8:08 pm-2:35 am

2 stops51h 27m

$490

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Sun 11/30

11:57 am-2:35 am

2 stops35h 38m

$524

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Mon 12/1

1:56 pm-1:39 pm

3 stops44h 43m

$526

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Fri 11/28

1:56 pm-3:50 pm

3 stops46h 54m

$536

MilwaukeeBuenos Aires

MKE - EZE

MKEEZE

Milwaukee-Mitchell

Thu 11/27

11:57 am-10:55 pm

3 stops31h 58m

$586

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

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, April is the cheapest month in which you can book a flight from Milwaukee to Buenos Aires (average of $795). Flying from Milwaukee to Buenos Aires in December is currently the most expensive (average of $1,260). 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.

How much does it cost to fly round-trip from Milwaukee to Buenos Aires?

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 August 18, 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
8.0
Very good
7,981 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $1,025, LATAM Airlines can have you in Buenos Aires from Milwaukee in 16h 55m. Milwaukee and Buenos Aires are separated by a distance of 5680 mi.

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

    Delta, at $1,063, was found to be the cheapest airline from Milwaukee to Buenos Aires.. Delta is priced at 21% 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, April is the cheapest month in which you can book a flight from Milwaukee to Buenos Aires (average of $795). Flying from Milwaukee to Buenos Aires in December is currently the most expensive (average of $1,260). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,063Average$1,263FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.