$511 Cheap Flights from Milwaukee (MKE) to Buenos Aires (EZE)

View $511 flight on Sat, Sep 13, 2025Opens in a new window

Popular airlines from General Mitchell Intl. Airport (MKE) to Ministro Pistarini Intl. Airport (EZE)

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Cheap Flights from Milwaukee to Buenos Aires (MKE-EZE)

Prices were available within the past 7 days and start at $511 for one-way flights and $968 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Oct 24 - Mon, Oct 27
MKE
Milwaukee
EZE
Buenos Aires
$968 Roundtrip, found 1 day ago
$968
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 24 from Milwaukee to Buenos Aires, returning Mon, Oct 27, priced at $968 found 1 day ago
United
Fri, Oct 24 - Mon, Oct 27
MKE
Milwaukee
EZE
Buenos Aires
$1,012 Roundtrip, found 1 day ago
$1,012
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 24 from Milwaukee to Buenos Aires, returning Mon, Oct 27, priced at $1,012 found 1 day ago
United
Tue, Aug 26 - Wed, Sep 3
MKE
Milwaukee
EZE
Buenos Aires
$1,014 Roundtrip, found 1 hour ago
$1,014
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 26 from Milwaukee to Buenos Aires, returning Wed, Sep 3, priced at $1,014 found 1 hour ago
United
Sat, Oct 18 - Fri, Oct 31
MKE
Milwaukee
EZE
Buenos Aires
$1,017 Roundtrip, found 2 days ago
$1,017
Roundtrip
found 2 days ago
Select United flight, departing Sat, Oct 18 from Milwaukee to Buenos Aires, returning Fri, Oct 31, priced at $1,017 found 2 days ago
Delta
Thu, Jan 15 - Thu, Jan 29
MKE
Milwaukee
EZE
Buenos Aires
$1,025 Roundtrip, found 1 day ago
$1,025
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jan 15 from Milwaukee to Buenos Aires, returning Thu, Jan 29, priced at $1,025 found 1 day ago
United
Tue, Oct 21 - Tue, Oct 28
MKE
Milwaukee
EZE
Buenos Aires
$1,025 Roundtrip, found 2 days ago
$1,025
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 21 from Milwaukee to Buenos Aires, returning Tue, Oct 28, priced at $1,025 found 2 days ago
Delta
Tue, Dec 2 - Thu, Dec 25
MKE
Milwaukee
EZE
Buenos Aires
$1,034 Roundtrip, found 2 days ago
$1,034
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Dec 2 from Milwaukee to Buenos Aires, returning Thu, Dec 25, priced at $1,034 found 2 days ago
American Airlines
Wed, Mar 25 - Wed, May 6
MKE
Milwaukee
EZE
Buenos Aires
$1,068 Roundtrip, found 5 days ago
$1,068
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Mar 25 from Milwaukee to Buenos Aires, returning Wed, May 6, priced at $1,068 found 5 days ago
LATAM Airlines Group
Wed, Dec 10 - Mon, Dec 22
MKE
Milwaukee
EZE
Buenos Aires
$1,121 Roundtrip, found 2 days ago
$1,121
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Wed, Dec 10 from Milwaukee to Buenos Aires, returning Mon, Dec 22, priced at $1,121 found 2 days ago
Copa
Mon, Aug 4 - Sun, Aug 10
MKE
Milwaukee
EZE
Buenos Aires
$1,902 Roundtrip, found 6 hours ago
$1,902
Roundtrip
found 6 hours ago
Select Copa flight, departing Mon, Aug 4 from Milwaukee to Buenos Aires, returning Sun, Aug 10, priced at $1,902 found 6 hours ago
Flights from Milwaukee (MKE) to Buenos Aires (EZE)
Origin airport
General Mitchell Intl.
Destination airport
Ministro Pistarini Intl.
Airlines serving
Air Canada, American Airlines, Copa, Delta, LATAM Airlines Group, United
Roundtrip price
$967
Distance
5682 mi

Milwaukee to Buenos Aires Flights

The cheapest times to fly from Milwaukee to Buenos Aires

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Milwaukee to Buenos Aires are during the month of October. You can find some of the cheapest flights from Milwaukee to Buenos Aires with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Milwaukee to Buenos Aires

Sunday is one of the best days to book for cheap flights from Milwaukee to Buenos Aires: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Milwaukee to Buenos Aires

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Milwaukee to Buenos Aires in 2025. You can also book with separate airlines for your outbound and return journeys, from $511 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Milwaukee to Buenos Aires flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Milwaukee to Buenos Aires airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from General Mitchell Intl. Airport (MKE) to Ministro Pistarini Intl. Airport (EZE) cost?
Discover the latest flight deals from MKE to EZE by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from MKE to EZE?
The cheapest flights from MKE to EZE are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from MKE to EZE?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from MKE to EZE. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from General Mitchell Intl. Airport (MKE) to Ministro Pistarini Intl. Airport (EZE)?
Nonstop flights from General Mitchell Intl. Airport (MKE) to Ministro Pistarini Intl. Airport (EZE) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from MKE to EZE?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from General Mitchell Intl. Airport (MKE) to Ministro Pistarini Intl. Airport (EZE)?
To avoid potential delays on the General Mitchell Intl. Airport (MKE) to Ministro Pistarini Intl. Airport (EZE) route, fly before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from General Mitchell Intl. Airport (MKE) to Ministro Pistarini Intl. Airport (EZE) last-minute?
Holding off until right before your break to book your flight from MKE to EZE generally means paying more. While you may find some last-minute discounts, they aren't always guaranteed. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book a MKE to EZE flight and hotel package?
You can save money by securing a MKE to EZE flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've chosen your preferred flights and accommodations, consider adding extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from General Mitchell Intl. Airport (MKE) to Ministro Pistarini Intl. Airport (EZE)?
In most cases, you're able to cancel or reschedule your MKE to EZE flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you'd like more details, go to our Customer Service portal.

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*Available to One Key members.