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Cheap flights from Chicago to Buenos Aires from $310

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Buenos Aires departing on 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago to Buenos Aires

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Buenos Aires.
2:35 pm - 5:35 amORD-EZE
37h 00m2 stops
5:55 am - 1:15 pmEZE-ORD
33h 20m2 stops
$715Avianca
Find Deal
dom., may. 11 - dom., may. 18
2:35 pm - 3:20 pmORD-EZE
22h 45m1 stop
6:40 am - 1:15 pmEZE-ORD
32h 35m2 stops
$721Avianca
Find Deal
mié., may. 7 - mié., may. 14
2:35 pm - 3:20 pmORD-EZE
22h 45m1 stop
5:55 am - 1:15 pmEZE-ORD
33h 20m2 stops
$724Avianca
Find Deal
lun., abr. 7 - lun., abr. 14
2:35 pm - 5:35 amORD-EZE
37h 00m2 stops
5:55 am - 1:15 pmEZE-ORD
33h 20m2 stops
$726Avianca
Find Deal
dom., may. 11 - dom., may. 18
1:07 am - 12:51 amORD-EZE
21h 44m1 stop
3:47 am - 12:22 amEZE-ORD
22h 35m1 stop
$1,013Copa Airlines
Find Deal
mar., jul. 8 - dom., ago. 24
4:15 pm - 6:12 pmMDW-EZE
23h 57m2 stops
12:48 pm - 9:54 amEZE-MDW
23h 06m2 stops
$1,025LATAM Airlines
Find Deal
lun., may. 26 - mar., jun. 10
10:35 am - 11:57 amORD-EZE
23h 22m2 stops
7:35 am - 11:55 pmEZE-ORD
18h 20m2 stops
$1,025LATAM Airlines
Find Deal
jue., ago. 21 - jue., ago. 28
1:20 pm - 7:35 amORD-EZE
16h 15m2 stops
10:00 pm - 1:40 pmEZE-ORD
17h 40m2 stops
$1,028American Airlines
Find Deal
mié., jul. 9 - lun., ago. 25
1:08 pm - 9:45 amMDW-EZE
18h 37m2 stops
8:10 pm - 11:55 amEZE-MDW
17h 45m1 stop
$1,030Delta
Find Deal
mar., may. 27 - mar., ago. 5
9:00 am - 9:45 amORD-EZE
22h 45m2 stops
8:10 pm - 10:03 amEZE-ORD
15h 53m1 stop
$1,030Delta
Find Deal
mar., may. 20 - mar., may. 27

Avianca flights from Chicago to Buenos Aires

Our best Avianca deals on Chicago to Buenos Aires flight tickets
Avianca
May 11
ORD2:35 pmChicago O'Hare Intl
37h 00m
2 stops
EZE5:35 amBuenos Aires Ministro Pistarini
May 18
EZE5:55 amBuenos Aires Ministro Pistarini
33h 20m
2 stops
ORD1:15 pmChicago O'Hare Intl
Avianca
May 7
ORD2:35 pmChicago O'Hare Intl
22h 45m
1 stop
EZE3:20 pmBuenos Aires Ministro Pistarini
May 14
EZE6:40 amBuenos Aires Ministro Pistarini
32h 35m
2 stops
ORD1:15 pmChicago O'Hare Intl
Avianca
Apr 7
ORD2:35 pmChicago O'Hare Intl
22h 45m
1 stop
EZE3:20 pmBuenos Aires Ministro Pistarini
Apr 14
EZE5:55 amBuenos Aires Ministro Pistarini
33h 20m
2 stops
ORD1:15 pmChicago O'Hare Intl

LATAM Airlines flights from Chicago to Buenos Aires

Our best LATAM Airlines deals on Chicago to Buenos Aires flight tickets
LATAM Airlines
May 26
MDW4:15 pmChicago Midway
23h 57m
2 stops
EZE6:12 pmBuenos Aires Ministro Pistarini
Jun 10
EZE12:48 pmBuenos Aires Ministro Pistarini
23h 06m
2 stops
MDW9:54 amChicago Midway
LATAM Airlines
May 25
MDW6:00 amChicago Midway
20h 05m
2 stops
AEP4:05 amBuenos Aires Jorge Newbery
Jul 3
AEP10:35 amBuenos Aires Jorge Newbery
25h 19m
2 stops
MDW9:54 amChicago Midway
LATAM Airlines
Mar 31
MDW12:51 pmChicago Midway
39h 19m
2 stops
EZE6:10 amBuenos Aires Ministro Pistarini
Apr 10
EZE7:30 amBuenos Aires Ministro Pistarini
27h 37m
2 stops
MDW9:07 amChicago Midway

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Chicago to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chicago and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Chicago is in May. Flight prices, which tend to average around $1,013, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Buenos Aires from Chicago during September instead. Flights to Buenos Aires in September, while not as cheap as those in May, still average around $1,040.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from Chicago is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,133. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Thursday is $1,268.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our most recent data shows that the best time of day to fly to Buenos Aires is in the evening. Flights from Chicago to Buenos Aires during this time can be as low as $1,103. Try not to purchase tickets at noon because they tend to be around $1,268. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from Chicago when booking 17 weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,199 when searching 17 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Chicago for as low as $1,055 on momondo.

How have Chicago to Buenos Aires flight prices changed over time?

As of March 2025, prices for Chicago to Buenos Aires flights are approximately 13% more expensive when compared to flights at the same time last year.

When to book flights from Chicago to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Buenos Aires (CHI to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Buenos Aires

Best Price Found

$310

Fastest flight time

12h 55m

Direct flights

None

Airports in Buenos Aires

2 airports
The best one-way flight to Buenos Aires from Chicago in the past 72 hours is $310. The best round-trip flight deal from Chicago to Buenos Aires found on momondo in the last 72 hours is $715.
The fastest flight from Chicago to Buenos Aires takes 12h 55m
There are no direct flights from Chicago to Buenos Aires. Popular non-direct routes for this connection are Chicago O'Hare Intl Airport - Buenos Aires Jorge Newbery Airport, Chicago O'Hare Intl Airport - Buenos Aires Ministro Pistarini Airport and Chicago Midway Airport - Buenos Aires Jorge Newbery Airport.
There are 2 airports near Buenos Aires: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP)

  • How far is Chicago to Buenos Aires by plane?

    A flight from Chicago to Buenos Aires will travel around 5596.4 mi. 12h 55m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Chicago to Buenos Aires?

    Prices for flights from Chicago to Buenos Aires are updated daily.

  • How many operators does momondo search for flights from Chicago to Buenos Aires?

  • How old do you have to be to fly from Chicago to Buenos Aires?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Buenos Aires.

  • What documentation or ID do you need to fly to Buenos Aires?

    The travel and health documents you'll need for your trip to Buenos Aires may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Chicago to Buenos Aires?


Best airlines flying from Chicago to Buenos Aires

Compare and see reviews for airlines that fly from Chicago to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $762Free CancellationRating
6.7
2,300 reviews
Search Avianca flights
DeltaPriceFrom $778Free CancellationRating
8.0
7,895 reviews
Search Delta flights
Copa AirlinesPriceFrom $963Free CancellationRating
7.5
1,395 reviews
Search Copa Airlines flights
American AirlinesPriceFrom $1,001Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $1,060Free CancellationRating
7.4
8,603 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Buenos Aires?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Buenos Aires from Chicago.

Can I find flights from Chicago to Buenos Aires with flexible booking policies on momondo?

Yes. All flights to Buenos Aires from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to Buenos Aires?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Buenos Aires.

I’m not ready to book a flight from Chicago to Buenos Aires right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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mar. 4/1
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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires