Cheap Flights from Chicago to Buenos Aires

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Find the cheapest month or even day of the year to fly to Buenos Aires

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Flight deals from Chicago to Buenos Aires

Looking for a cheap last-minute deal or the best return flight from Chicago to Buenos Aires? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Buenos Aires

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Buenos Aires flights are currently cheapest in November.

Alternative Chicago to Buenos Aires routes

Looking for the cheapest, fastest or easiest route from Chicago to Buenos Aires? You could fly into the following airports instead.

Chicago to Buenos Aires: Flight information

The things to know before you go.
Cheapest flight foundR 5,498
Cheapest month to flyNovember

Finding cheap flights from Chicago to Buenos Aires: Frequently asked questions

There are 2 airports in Buenos Aires: Buenos Aires Jorge Newbery and Buenos Aires Ministro Pistarini.
The best price we found for a return flight from Chicago to Buenos Aires is R 12,989. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago to Buenos Aires. But we found flights with one or more stops from R 12,989.
As of September 2025, there are no flights flying from Chicago to Buenos Aires.
The cheapest month to fly from Chicago to Buenos Aires is usually March.
If you're flying from Chicago, the cheapest airport near Buenos Aires is Buenos Aires Ministro Pistarini – which is 27.7 km away from the centre of Buenos Aires. We've found flights into this airport from R 12,989.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Buenos Aires on Sunday, 15 March 2026.
No airlines currently offer direct flights between Chicago and Buenos Aires. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Buenos Aires but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Buenos Aires is around 40 days in advance, so don’t leave your flight to the last minute.
In September, the average temperature is usually around 13°C. January is typically the warmest month in Buenos Aires, when it usually averages around 30°C. You can expect the least rain in June. The coldest month is July, with temperatures averaging 6°C. The rainiest month is March.
The cheapest airline that flies to Buenos Aires is Avianca .

Flying from Chicago to Buenos Aires: what you need to know

  • There are a couple of main airports to choose from in Chicago. Check out your options departing from O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW) when organising your flight from Chicago to Buenos Aires.

  • When working out where to arrive in Buenos Aires, Jorge Newbery Airport (AEP) and Ministro Pistarini Airport (EZE) are the chief entry points.

  • Buenos Aires is two hours ahead of Chicago and is in the UTC-3 timezone.

  • Allow plenty of time to catch your Chicago to Buenos Aires flight. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.

  • If you're heading away during a popular month like August, be at the airport even earlier. It's wise to arrive up to four hours before international flights and two hours ahead of a domestic departure. Security lines will be longer during holiday periods like Thanksgiving, Christmas and New Year.

How to find the cheapest flights from Chicago to Buenos Aires

  • To find cheap Chicago to Buenos Aires flights, book as early as possible. Airlines generally offer the most competitive fares when flights first go on sale.

  • If you're flexible with your travel dates, use the 'Whole month' search tool. It'll give you the lowest price across the month when looking for your plane ticket from Chicago to Buenos Aires.

  • There's no need to check every day to find out if prices have dropped when you set up a Price Alert. We'll tell you when there's a better deal on cheap flights from Chicago to Buenos Aires.

  • Tailor your travel plans using filters. Pick your preferred departure and arrival times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' Chicago to Buenos Aires flights.

Flying from Chicago

O'Hare International Airport (ORD)

  • Think about adding a stopover to potentially save on your Chicago to Buenos Aires flight. Just uncheck 'Direct flights only' when searching for departures from O'Hare International Airport. Take a break from travelling at one of these popular airports:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Miami International Airport (MIA)

    • George Bush Intercontinental Airport (IAH)

  • Located around 26 kilometres from central Chicago, ORD can be reached in about 35 minutes by car, depending on traffic. The journey on public transport takes roughly 55 minutes.

  • Searching for a handy hotel close to O'Hare International Airport? If you're boarding an early flight from Chicago to Buenos Aires, these stays will have you moments from check-in:

  • When it comes to O'Hare International Airport's on-time performance, 74.85% of flights arrive within the scheduled time frame.

  • You'll find ORD at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Make the most of your holiday with a stopover on your Chicago to Buenos Aires flight. Visit family or friends or tick another city off your list. Whatever you decide to do, check out these options between Chicago Midway International Airport and Buenos Aires:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Miami International Airport (MIA)

    • Dallas/Fort Worth International Airport (DFW)

  • MDW is about 14 kilometres from central Chicago. It takes 20 minutes or so to get to the airport if you're driving from the city centre. Public transport takes roughly 45 minutes.

  • You're going on holiday, so why not extend it with an additional night away? Think about kicking back in one of these accommodation options near Chicago Midway International Airport the day before your flight from Chicago to Buenos Aires:

  • 77.88% of flights out of Chicago Midway International Airport make it to their destination as expected.

  • The address for MDW is 5700 South Cicero.

Arriving in Buenos Aires

Jorge Newbery Airport (AEP)

  • The distance from Jorge Newbery Airport (AEP) to central Buenos Aires is roughly 6 kilometres. It'll take you around 20 minutes to get to the centre driving.

  • It usually takes 40 minutes to get there when travelling by public transport.

  • Book a hotel close to AEP if you're coming in on a late flight from Chicago to Buenos Aires. Select one of these accommodation options and avoid the hassle of a long transfer:

  • Go wherever you want, whenever you want with a Jorge Newbery Airport rental car. Pick up your wheels from Hertz, Localiza or rentar low cost and find adventure across Buenos Aires and beyond.

  • Reserving your ride from Jorge Newbery Airport around one week ahead gives you the best chance of locking in a great deal.

Ministro Pistarini Airport (EZE)

  • As soon as your flight from Chicago to Buenos Aires has hit the tarmac, you can get to the city centre in about 35 minutes by car. Central Buenos Aires is approximately 24 kilometres from Ministro Pistarini Airport (EZE).

  • You can expect the journey to take roughly 2 hours 10 minutes on public transport.

  • Hang the 'Do not disturb' sign on your door and unwind at a hotel close to EZE. Here are a few options where you can settle in after your flight from Chicago to Buenos Aires:

  • Hertz, Cactus and Localiza make collecting a Ministro Pistarini Airport rental car quick and easy. These trusted companies are located in or around the terminal and will have you ready to go in a flash.

  • Avoid last-minute price surges. Reserving your ride one week before your arrival at EZE can get you a lower rate.

Best time to go to Buenos Aires

  • April is the quietest month for flights from Chicago to Buenos Aires, while August is the most popular. Pick the ideal time to go to Buenos Aires based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • Before locking in your Chicago to Buenos Aires tickets, consider the kind of weather you prefer. January is the warmest month in Buenos Aires, with temperatures ranging from 19ºC (66ºF) to 31ºC (88ºF).

  • July sees average temperatures of between 5ºC (41ºF) and 15ºC (59ºF). Search for cheap flights from Chicago to Buenos Aires around that time if you like cooler conditions.

More about Buenos Aires

  • Start your Buenos Aires trip right by choosing the ideal place to stay. As soon as you've booked your flight from Chicago to Buenos Aires, explore our selection of accommodation options including:

  • Obelisco de Buenos Aires and Recoleta Cemetery are just the start of the leading attractions to add to your Buenos Aires itinerary. Continue your sightseeing adventures at Casa Rosada.

Explore more of Argentina

  • You've visited Buenos Aires, now it's time to explore other corners of Argentina. Journey around 274 kilometres north-west to Rosario to tick off its top sights. From Monumento a la Bandera (Flag Monument) to Predio Ferial Parque de la Independencia and Parque Nacional a la Bandera, there's plenty to keep you on the go.

  • La Plata is another must-experience destination in Argentina and is around 56 kilometres south-east of Buenos Aires. No journey is complete without experiencing Busto de Francisco Lopez Merino, Estacion circunvalacion and Museo Almafuerte.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.