Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Chicago to Buenos Aires
The cheapest flights right now
Chicago – Buenos Aires
Outbound – Nov 16, 2026
1 stop
14h 41m ATL
Return – Dec 1, 2026
1 stop
15h 49m ATL
$940
yesterday
Chicago – Buenos Aires
Outbound – Nov 16, 2026
1 stop
14h 13m IAH
Return – Dec 1, 2026
1 stop
15h 5m IAH
$1,101
yesterday
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$694
Average price of a round trip
$843
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
34h2
A flight from Chicago to Buenos Aires takes on average 34h2.
Best time
February
According to user searches, the ideal month to go to Buenos Aires is February.
Tips for finding a cheap flight from Chicago to Buenos Aires
Check out our tips for booking your flight to Buenos Aires (Argentina) from Chicago (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is February, with an average flight ticket price of $557 (calculation over the last two years). The most touristic season corresponds to the months of October, November and February.
For the cheapest flights, it is advisable to buy your ticket at least 54 days before the departure date.
The airline offering the cheapest flight tickets is Frontier Airlines. A ticket from the airline Frontier Airlines to Buenos Aires costs on average $831.
The airlines that offer the most flights are .
Price of flight tickets from Chicago to Buenos Aires
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $694 to $954
- The average price of a flight ticket is about $843
- Prices are lowest for stays in the month of February
- The month in which booking a ticket is cheaper is: November
info departure city :
Chicago, USA
airports :
Chicago-Merrill C. Meigs Field Airport (CGX)
Chicago FSS (CHI)
Chicago-Midway International Airport (MDW)
Chicago-O'Hare International Airport (ORD)
local time :
Chicago is a city in the country USA, the time zone is [[timezone]]. In Chicago, it is currently {fromLocalTime}, the temperature is on average 12°C, with a minimum of 10°C and a maximum of 16°C.
The city of Chicago (CHI) has 4 airport(s): Chicago-Merrill C. Meigs Field, Chicago FSS, Chicago-Midway and Chicago-O'Hare
destination info :
Buenos Aires, Argentina
airports :
Jorge Newbery Airfield (AEP)
Ministro Pistarini International Airport (EZE)
local time :
Buenos Aires is in the country Argentina, the time zone is [[timezone]]. In Buenos Aires, it is currently {toLocalTime}, the temperature is on average 14°C, with a minimum of 12°C and a maximum of 16°C.
The city of Buenos Aires (BUE) has 2 airport(s): Jorge Newbery and Ministro Pistarini
Useful info about Buenos Aires
What is the least touristic period to go to Buenos Aires?
If you want to visit Buenos Aires during the least touristic period, choose the month of February.
What is the most popular time to travel to Buenos Aires?
In Buenos Aires, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Chicago to Buenos Aires?
According to our data, it is recommended to book your flight 54 days before your departure. If you book your flight ticket 8 weeks before your departure, you may find a price below average. The cheapest day to book a flight from Chicago to Buenos Aires is Monday.
What are the arrival and destination airports when traveling between Chicago and Buenos Aires?
When you leave, you can leave from Chicago-Midway or Chicago-O'Hare, and you will arrive at Jorge Newbery or Ministro Pistarini.
How to reach Chicago airport from the city centre?
The airport Chicago-Merrill C. Meigs Field is located 4 km, Chicago FSS is located 29 km, Chicago-Midway is located 12 km or Chicago-O'Hare is located 29 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Chicago to Buenos Aires?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Chicago and Buenos Aires?
In summer, the average temperature is 12°C in Buenos Aires and 22°C in Chicago. The average rainfall in summer is 75 mm in Buenos Aires and 145 mm in Chicago. In summer, it is warmer in Chicago and it rains less in Buenos Aires. In winter, it is colder in Buenos Aires and it rains more in Buenos Aires.
