Cheap Flights from Chicago (ORD) to Buenos Aires (BAI)

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Buenos Aires (BAI)

Flights from Chicago (ORD) to Buenos Aires (BAI)
Origin airport
O'Hare Intl.
Destination airport
Buenos Aires
Distance
2283 mi

Chicago to Buenos Aires Flights

The cheapest times to fly from Chicago 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 Chicago to Buenos Aires are during the month of . You can find some of the cheapest flights from Chicago to Buenos Aires with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Chicago 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 Chicago 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 Chicago to Buenos Aires in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 Chicago 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 Chicago 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 O'Hare Intl. Airport (ORD) to Buenos Aires (BAI) cost?
Grab a cheap one-way flight or cheap return flight from O'Hare Intl. Airport (ORD) to Buenos Aires (BAI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Buenos Aires (BAI)?
Flying in may help you find better deals, as it's the cheapest month for flights between ORD and BAI. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Buenos Aires (BAI)?
To find the cheapest airline that'll fly you from ORD to BAI, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from O'Hare Intl. Airport (ORD) to Buenos Aires (BAI)?
There are no daily nonstop flights available from O'Hare Intl. Airport (ORD) to Buenos Aires (BAI). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from ORD to BAI?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, airline 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 O'Hare Intl. Airport (ORD) to Buenos Aires (BAI)?
Opt for a flight from O'Hare Intl. Airport (ORD) to Buenos Aires (BAI) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this have a 22% higher chance of being canceled, on average.**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 O'Hare Intl. Airport (ORD) to Buenos Aires (BAI) last-minute?
Booking your plane ticket from ORD to BAI right before your journey is generally more expensive. However, if you're flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book an ORD to BAI flight and hotel package?
You'll generally save money by securing an ORD to BAI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've chosen your ideal flights and accommodations, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Buenos Aires (BAI)?
In most instances, you can modify or cancel your ORD to BAI flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want further details, visit our Customer Service portal.

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*Available to One Key members.