C$426 Cheap Flights from Chicago (CHIA) to Buenos Aires (BUEA)

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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? If you want to travel next month, return fares start from C$985. 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 June.

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 foundC$426
Cheapest month to flyJune

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 C$985. 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 C$985.
As of March 2026, there are no flights flying from Chicago to Buenos Aires.
The cheapest month to fly from Chicago to Buenos Aires is usually April.
If you're flying from Chicago, the cheapest airport near Buenos Aires is Buenos Aires Jorge Newbery – which is 6.8 km away from the centre of Buenos Aires. We've found flights into this airport from C$985.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Buenos Aires on Thursday, April 9, 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 March, the average temperature is usually around 22°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 Spirit Airlines .

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

  • Chicago is home to a couple of airports where you can kick off your trip. Check out your options for booking a flight from Chicago to Buenos Aires leaving from O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW).

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

  • To ensure you catch your flight from Chicago to Buenos Aires, allow plenty of time to check in and drop off your luggage. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • You can expect longer lines in popular months such as August and other peak periods. Arriving up to four hours in advance for international flights and two hours for domestic departures will help ensure a smooth travel experience.

  • You can travel to Argentina for tourism purposes without a visa if you hold a passport from United States. But before reserving your cheap flight from Chicago to Buenos Aires, make sure you're up to date with the latest guidelines. Visa rules are subject to change, and you may need some documentation if your trip is for business or another reason.

Flying from Chicago

O'Hare International Airport (ORD)

  • Stopovers are the perfect opportunity to break up your journey — and possibly even explore a different city. When searching for flights from Chicago to Buenos Aires departing from O'Hare International Airport, deselect the 'Direct flights only' box to see where you can stop along the way. Here are some popular options to consider:

    • Miami International Airport (MIA)

    • George Bush Intercontinental Airport (IAH)

    • Hartsfield-Jackson Atlanta International Airport (ATL)

  • Located around 40 kilometres from central Chicago, ORD can be reached in approximately 35 minutes by car (depending on traffic). The journey by public transport will take roughly 54 minutes.

  • Looking for a convenient hotel near O'Hare International Airport? If you're boarding an early flight from Chicago to Buenos Aires, these accommodation options will put you moments from your departure gate:

Chicago Midway International Airport (MDW)

  • Make the most of your vacation with a stopover on your flight from Chicago to Buenos Aires. Visit friends or family or tick another city off your bucket list. Whatever your plans, check out these options between O'Hare International Airport and Buenos Aires:

    • Miami International Airport (MIA)

    • George Bush Intercontinental Airport (IAH)

    • Hartsfield-Jackson Atlanta International Airport (ATL)

  • With public transport, you can travel from central Chicago to MDW in around 46 minutes. The airport is roughly 19 kilometres away, and making the trip by car takes approximately 21 minutes.

  • You're off on vacation, so why not spend an extra night away from home? Consider checking in to one of these accommodation options near Chicago Midway International Airport the day before your flight from Chicago to Buenos Aires:

Arriving in Buenos Aires

Jorge Newbery Airport (AEP)

Ministro Pistarini Airport (EZE)

How to find the cheapest flights from Chicago to Buenos Aires

  • The lowest price we've seen for a one-way ticket from Chicago to Buenos Aires is C$426. For a return flight on this route, the best price is C$980. Depending on when you book and the availability, these fares could change.

  • It's usually smart to book as early as possible if you want to get cheap flights from Chicago to Buenos Aires. That's because airlines change prices based on demand, which tends to rise closer to departure.

  • Finding cheap flights from Chicago to Buenos Aires is easy if you can be flexible with your travel dates. Use the 'Whole month' function to show the lowest fares across the month and snap up a great deal.

  • Set up a Price Alert for cheap flights from Chicago to Buenos Aires. There's no need to search every day to find out if fares have dropped. We'll let you know as soon as the price changes.

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

Best time to go to Buenos Aires

  • It's time to figure out your travel dates for your flight from Chicago to Buenos Aires. August is the most popular month to travel to Buenos Aires. If you prefer a more relaxed vibe, go in April.

  • The warmest month in Buenos Aires is January, with the temperature ranging between 19ºC and 31ºC. Book your flights from Chicago to Buenos Aires in this month if this is the type of weather you enjoy.

  • For cooler conditions, lock in a cheap ticket from Chicago to Buenos Aires in July when temperatures average between 5ºC and 15ºC.

More about Buenos Aires

  • When it comes to searching for somewhere to lay your head, you'll find the top stays in Buenos Aires right here. Check out these hotels as soon as you've booked your flight from Chicago to Buenos Aires:

  • There are so many things to do and see in this city it can be hard to figure out where to start. Obelisco de Buenos Aires, Recoleta Cemetery and Casa Rosada are top sights which should be on any good Buenos Aires itinerary.

Complete your Buenos Aires trip with a car rental

  • We use the same magic that helped you find your cheap flight from Chicago to Buenos Aires to track down incredible deals on car rentals. Search for your ride in seconds and easily compare your options. Plus we give you all the info you need to drive in Buenos Aires, from the most popular car rental to the best time to book.

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