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Cheap flights from Chicago O'Hare International to Buenos Aires

Compare Chicago O'Hare International to Buenos Aires flight deals

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

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Flight deals from Chicago O'Hare International to Buenos Aires

Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International to Buenos Aires? Find the lowest prices on one-way and return tickets right here.
Buenos Aires.P42,762 per passenger.Departing Wed, 6 May, returning Tue, 12 May.Return flight with Arajet.Outbound indirect flight with Arajet, departs from Chicago O'Hare International on Wed, 6 May, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Tue, 12 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From P42,762, select.
Buenos Aires.P45,231 per passenger.Departing Mon, 1 Sep, returning Mon, 8 Sep.Return flight with Spirit Airlines and Sky Airline.Outbound indirect flight with Spirit Airlines, departs from Chicago O'Hare International on Mon, 1 Sep, arriving in Buenos Aires Jorge Newbery.Inbound indirect flight with Sky Airline, departs from Buenos Aires Jorge Newbery on Mon, 8 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From P45,231, select.
Buenos Aires.P47,615 per passenger.Departing Wed, 7 Jan, returning Tue, 20 Jan.Return flight with Arajet.Outbound indirect flight with Arajet, departs from Chicago O'Hare International on Wed, 7 Jan, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Tue, 20 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From P47,615, select.
Buenos Aires.P48,125 per passenger.Departing Mon, 24 Nov, returning Sun, 30 Nov.Return flight with Arajet.Outbound indirect flight with Arajet, departs from Chicago O'Hare International on Mon, 24 Nov, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Sun, 30 Nov, arriving in Chicago O'Hare International.Price includes taxes and charges.From P48,125, select.
Buenos Aires.P48,197 per passenger.Departing Sun, 31 Aug, returning Sun, 7 Sep.Return flight with Spirit Airlines and Sky Airline.Outbound indirect flight with Spirit Airlines, departs from Chicago O'Hare International on Sun, 31 Aug, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Sky Airline, departs from Buenos Aires Ministro Pistarini on Sun, 7 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From P48,197, select.
Buenos Aires.P50,194 per passenger.Departing Wed, 24 Dec, returning Sun, 11 Jan.Return flight with Arajet.Outbound indirect flight with Arajet, departs from Chicago O'Hare International on Wed, 24 Dec, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Sun, 11 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From P50,194, select.
Buenos Aires.P51,457 per passenger.Departing Sat, 30 May, returning Fri, 12 Jun.Return flight with Arajet.Outbound indirect flight with Arajet, departs from Chicago O'Hare International on Sat, 30 May, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Fri, 12 Jun, arriving in Chicago O'Hare International.Price includes taxes and charges.From P51,457, select.
Buenos Aires.P51,608 per passenger.Departing Sat, 14 Feb, returning Tue, 24 Feb.Return flight with Arajet.Outbound indirect flight with Arajet, departs from Chicago O'Hare International on Sat, 14 Feb, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Tue, 24 Feb, arriving in Chicago O'Hare International.Price includes taxes and charges.From P51,608, select.

Find the cheapest month to fly from Chicago O'Hare International to Buenos Aires

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to Buenos Aires flights are currently cheapest in May.
Jul
from P62,654
Aug
from P55,440
Sep
from P45,231
Oct
from P55,229
Nov
from P48,125
Dec
from P56,715
Jan
from P47,615
Feb
from P51,608
Mar
from P51,895
Apr
from P61,646
May
from P42,762
Jun
Find prices

Alternative Chicago O'Hare International to Buenos Aires routes

Looking for the cheapest, fastest or easiest route from Chicago O'Hare International 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 foundP42,762
Cheapest month to flyMay

Finding cheap flights from Chicago O'Hare International 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 O'Hare International to Buenos Aires is P42,762. 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 O'Hare International to Buenos Aires. But we found flights with one or more stops from P42,762.
As of July 2025, there are no flights flying from Chicago O'Hare International to Buenos Aires.
The cheapest month to fly from Chicago O'Hare International to Buenos Aires is usually May.
If you're flying from Chicago O'Hare International Airport, 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 P42,762.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to Buenos Aires on Wednesday, 6 May 2026.
No airlines currently offer direct flights between Chicago O'Hare International Airport 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 July, the average temperature is usually around 10°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.
Currently, Arajet offers the cheapest flight tickets to Buenos Aires.

Travelling from O'Hare International Airport (ORD) to Buenos Aires: what you need to know

  • The timezone in Buenos Aires is UTC-3. The city is two hours ahead of Chicago, where O'Hare International Airport is located.

  • For stress-free travel, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to catch your ORD to Buenos Aires flight.

  • Planning to travel during a peak period like school or public holidays? Expect longer queues at check-in and security. Play it safe and arrive up to four hours before international flights and two hours ahead of domestic departures.

  • Consider adding a stopover to potentially find a cheaper plane ticket from ORD to Buenos Aires. Simply deselect 'Direct flights only' during your search. Give yourself a breather (and maybe even a better deal) by stopping at one of these connecting airports:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • George Bush Intercontinental Airport (IAH)

    • Miami International Airport (MIA)

  • ORD is around 26 kilometres from central Chicago. If you're ride-sharing, driving or catching a cab from the centre, it'll take 35 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the travel time to be around 55 minutes.

  • Want a leisurely start to your travels? Stay near ORD. Whether you're catching an early flight from O'Hare International Airport to Buenos Aires or don't want departure day to feel hectic, these hotels put convenience first:

  • Of the flights that depart from O'Hare International Airport, 74.85% land on schedule at their destination.

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

How to find the cheapest flights from O'Hare International Airport (ORD) to Buenos Aires

  • P18,281 is the cheapest price we've seen for a one-way O'Hare International Airport to Buenos Aires flight. A round-trip plane ticket right now is P42,762. Depending on how early you book and the availability, these fares could change.

  • To pick up cheap flights from ORD to Buenos Aires, book ahead. Airlines generally offer the most competitive fares when tickets first go on sale.

  • The 'Whole month' tool will show you the cheapest tickets from O'Hare International Airport to Buenos Aires across the month. It's a good way to find a bargain if your plans aren't set in stone.

  • Save time looking for cheap flights from ORD to Buenos Aires by setting up a Price Alert. We'll send you an email or notification through the app when a lower fare pops up.

  • Tailor your flights with filters. Select your ideal departure and arrival times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from O'Hare International Airport to Buenos Aires.

Airports in Buenos Aires

Jorge Newbery Airport (AEP)

  • Jorge Newbery Airport (AEP) to central Buenos Aires takes about 20 minutes to reach by car. The centre is roughly 14 kilometres away.

  • Getting to the centre by public transport takes around 40 minutes.

  • The last thing you want is a long journey to your hotel if you're landing late on a flight from O'Hare International Airport to Buenos Aires. Stay at one of these accommodation options near AEP instead:

  • Pick up a Jorge Newbery Airport rental car and discover Buenos Aires and beyond with your own wheels. Hertz, Localiza and rentar low cost are top outlets to choose from here.

  • Secure the lowest price by reserving your ride from Jorge Newbery Airport around one week in advance of your flight from ORD to Buenos Aires.

Ministro Pistarini Airport (EZE)

  • Ministro Pistarini Airport (EZE) is about 32 kilometres from central Buenos Aires. Once you've disembarked your flight from O'Hare International Airport to Buenos Aires, it'll take you around 35 minutes to reach the heart of the city in a cab or ride-share.

  • The trip will take roughly 2 hours 10 minutes on public transport.

  • After stepping off your ORD to Buenos Aires flight, kick back at a hotel near EZE. These are some great accommodation options that'll help you slip into relaxation mode:

  • The fastest way to reach your destination is with a Ministro Pistarini Airport rental car. Pick up a set of wheels from Hertz, Cactus or Localiza and hit the road in a heartbeat.

  • Don't pay more than you need to. Booking your ride one week before your arrival at EZE will save you money.

Best time to go to Buenos Aires

  • Carefully consider your dates before booking your flight from O'Hare International Airport to Buenos Aires. The city comes alive during high season, but hotel prices are typically higher and top attractions can be crowded. Plan your trip to Buenos Aires in the low season if you like a more relaxed vibe.

  • Before locking in your O'Hare International Airport to Buenos Aires plane ticket, think about the kind of weather forecast you're hoping for. January is the warmest month in Buenos Aires, with temperatures ranging from 19ºC (66ºF) to 31ºC (88ºF).

  • Look for cheap tickets from ORD to Buenos Aires in July if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 15ºC (59ºF) on average.

More about Buenos Aires

  • When it comes to looking for somewhere to rest your head, you'll find the top stays in Buenos Aires right here. Explore these options after locking in your flight from O'Hare International Airport to Buenos Aires:

  • There are so many things to do and see in this city it can be tricky to know where to start. Recoleta Cemetery, Obelisco de Buenos Aires and Casa Rosada are highlights which should feature on any good Buenos Aires itinerary.

Explore more of Argentina

  • You've seen Buenos Aires, now it's time to discover other parts of Argentina. Journey about 274 kilometres north-west to Rosario to tick off its leading attractions. 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.

  • If you're looking to explore another corner of Argentina, head for Mar Del Plata, about 386 kilometres south of Buenos Aires. Casino Central de Mar del Plata, Centro Cultural Villa Victoria Ocampo and Villa Ortiz Basualdo.Museo Municipal de Arte Juan Carlos Castagnino are key reasons to visit.

Plan the rest of your trip from Chicago to Buenos Aires

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