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Cheap flights from Chicago to Buenos Aires from $207

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 9/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Arajet Logo
5:30 am - 12:05 am
ORD
-
EZE
16h 35m
1 stop
Arajet Logo
9:45 am - 11:40 pm
EZE
-
ORD
15h 55m
1 stop
$449Arajet
Mon, Sep 7 - Thu, Sep 24
Arajet Logo
5:30 am - 12:05 am
ORD
-
EZE
16h 35m
1 stop
Arajet Logo
9:45 am - 11:40 pm
EZE
-
ORD
15h 55m
1 stop
$494Arajet
Mon, Sep 7 - Thu, Sep 24
Multiple Airlines Logo
5:30 am - 1:05 pm
ORD
-
EZE
29h 35m
2 stops
Multiple Airlines Logo
9:45 am - 11:40 pm
EZE
-
ORD
15h 55m
1 stop
$610Multiple Airlines
Mon, Sep 7 - Thu, Sep 24
Multiple Airlines Logo
5:30 am - 1:05 pm
ORD
-
EZE
29h 35m
2 stops
Multiple Airlines Logo
9:45 am - 11:40 pm
EZE
-
ORD
15h 55m
1 stop
$614Multiple Airlines
Mon, Sep 7 - Thu, Sep 24
LATAM Airlines Logo
11:23 am - 5:00 pm
ORD
-
EZE
27h 37m
2 stops
LATAM Airlines Logo
8:40 am - 12:40 pm
EZE
-
ORD
30h 00m
2 stops
$750LATAM Airlines
Mon, Aug 24 - Wed, Aug 26
LATAM Airlines Logo
11:23 am - 5:00 pm
ORD
-
EZE
27h 37m
2 stops
LATAM Airlines Logo
8:10 pm - 12:40 pm
EZE
-
ORD
18h 30m
1 stop
$835LATAM Airlines
Mon, Aug 24 - Wed, Aug 26
Copa Airlines Logo
8:02 am - 12:51 am
ORD
-
EZE
14h 49m
1 stop
Copa Airlines Logo
8:59 am - 1:02 am
EZE
-
ORD
18h 03m
1 stop
$896Copa Airlines
Wed, Aug 26 - Thu, Aug 27
United Airlines Logo
2:16 pm - 8:00 am
ORD
-
EZE
15h 44m
1 stop
United Airlines Logo
9:00 pm - 12:25 pm
EZE
-
ORD
17h 25m
1 stop
$908United Airlines
Mon, Aug 24 - Thu, Aug 27
United Airlines Logo
2:16 pm - 8:00 am
ORD
-
EZE
15h 44m
1 stop
United Airlines Logo
9:00 pm - 8:05 pm
EZE
-
ORD
25h 05m
1 stop
$908United Airlines
Mon, Aug 24 - Wed, Aug 26
Copa Airlines Logo
3:21 pm - 7:57 am
ORD
-
EZE
14h 36m
1 stop
Copa Airlines Logo
8:59 am - 1:02 am
EZE
-
ORD
18h 03m
1 stop
$919Copa Airlines
Fri, Aug 21 - Fri, Aug 28

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Arajet flights from Chicago to Buenos Aires

Our best Arajet deals on Chicago to Buenos Aires flight tickets
Arajet
Sep 7
ORD5:30 amChicago O'Hare Intl
16h 35m
1 stop
EZE12:05 amBuenos Aires Ministro Pistarini
Sep 24
EZE9:45 amBuenos Aires Ministro Pistarini
15h 55m
1 stop
ORD11:40 pmChicago O'Hare Intl
$449
Arajet
Sep 7
ORD5:30 amChicago O'Hare Intl
16h 35m
1 stop
EZE12:05 amBuenos Aires Ministro Pistarini
Sep 24
EZE9:45 amBuenos Aires Ministro Pistarini
15h 55m
1 stop
ORD11:40 pmChicago O'Hare Intl
$494
Arajet
Sep 7
ORD5:30 amChicago O'Hare Intl
16h 35m
1 stop
EZE12:05 amBuenos Aires Ministro Pistarini
Sep 24
EZE9:45 amBuenos Aires Ministro Pistarini
15h 55m
1 stop
ORD11:40 pmChicago O'Hare Intl
$496

LATAM Airlines flights from Chicago to Buenos Aires

Our best LATAM Airlines deals on Chicago to Buenos Aires flight tickets
LATAM Airlines
Aug 24
ORD11:23 amChicago O'Hare Intl
27h 37m
2 stops
EZE5:00 pmBuenos Aires Ministro Pistarini
Aug 26
EZE8:40 amBuenos Aires Ministro Pistarini
30h 00m
2 stops
ORD12:40 pmChicago O'Hare Intl
$750
LATAM Airlines
Nov 15
MDW1:00 pmChicago Midway
17h 40m
1 stop
EZE9:40 amBuenos Aires Ministro Pistarini
Nov 22
EZE7:20 amBuenos Aires Ministro Pistarini
18h 36m
2 stops
MDW10:56 pmChicago Midway
$908
LATAM Airlines
Nov 15
MDW1:00 pmChicago Midway
17h 40m
2 stops
EZE9:40 amBuenos Aires Ministro Pistarini
Nov 22
EZE7:20 amBuenos Aires Ministro Pistarini
18h 36m
2 stops
MDW10:56 pmChicago Midway
$912

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 31, 2026.
Use the filters below to find and compare flights from Chicago to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 9/7

5:30 am-12:05 am

1 stop16h 35m

Buenos Aires Ministro Pistarini

Thu 9/24

9:45 am-11:40 pm

1 stop15h 55m

$449

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 9/7

5:30 am-12:05 am

1 stop16h 35m

Buenos Aires Ministro Pistarini

Thu 9/24

9:45 am-11:40 pm

1 stop15h 55m

$494

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 9/7

5:30 am-1:05 pm

2 stops29h 35m

Buenos Aires Ministro Pistarini

Thu 9/24

9:45 am-11:40 pm

1 stop15h 55m

$610

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 9/7

5:30 am-1:05 pm

2 stops29h 35m

Buenos Aires Ministro Pistarini

Thu 9/24

9:45 am-11:40 pm

1 stop15h 55m

$614

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 8/24

11:23 am-5:00 pm

2 stops27h 37m

Buenos Aires Ministro Pistarini

Wed 8/26

8:40 am-12:40 pm

2 stops30h 00m

$750

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 8/24

11:23 am-5:00 pm

2 stops27h 37m

Buenos Aires Ministro Pistarini

Wed 8/26

8:10 pm-12:40 pm

1 stop18h 30m

$835

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 8/26

8:02 am-12:51 am

1 stop14h 49m

Buenos Aires Ministro Pistarini

Thu 8/27

8:59 am-1:02 am

1 stop18h 03m

$896

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 8/24

2:16 pm-8:00 am

1 stop15h 44m

Buenos Aires Ministro Pistarini

Thu 8/27

9:00 pm-12:25 pm

1 stop17h 25m

$908

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 8/24

2:16 pm-8:00 am

1 stop15h 44m

Buenos Aires Ministro Pistarini

Wed 8/26

9:00 pm-8:05 pm

1 stop25h 05m

$908

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 8/21

3:21 pm-7:57 am

1 stop14h 36m

Buenos Aires Ministro Pistarini

Fri 8/28

8:59 am-1:02 am

1 stop18h 03m

$919

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,039 to $1,108.
The lowest price recently found on this route was $449.

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Chicago is in November. Flight prices, which tend to average around $972, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Buenos Aires from Chicago during May instead. Flights to Buenos Aires in May, while not as cheap as those in November, still average around $978.

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

You are more likely to see cheaper flights to Buenos Aires from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,152 when searching 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 $747 on momondo.

Can stopping save me money on Chicago to Buenos Aires flights?

You could potentially save up to 56% on your flight if you consider stops on a Chicago to Buenos Aires flight.

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

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

Fastest flight time

13h 58m

Direct flights

None
The fastest flight from Chicago to Buenos Aires takes 13h 58m
There are no direct flights from Chicago to Buenos Aires. There are no popular flight routes from Chicago to Buenos Aires.
Search flight deals

Frequently asked questions about flying from Chicago to Buenos Aires

  • How far is Chicago to Buenos Aires by plane?

    A flight from Chicago to Buenos Aires will travel around 5596.4 mi. 13h 58m 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
ArajetPriceFrom $360Free CancellationRating
6.3
51 reviews
Search Arajet flights
LATAM AirlinesPriceFrom $727Free CancellationRating
7.4
1,968 reviews
Search LATAM Airlines flights
Copa AirlinesPriceFrom $768Free CancellationRating
7.6
1,558 reviews
Search Copa Airlines flights
AviancaPriceFrom $792Free CancellationRating
6.5
2,523 reviews
Search Avianca flights
DeltaPriceFrom $901Free CancellationRating
7.8
8,489 reviews
Search Delta flights
United AirlinesPriceFrom $951Free CancellationRating
7.4
10,046 reviews
Search United Airlines flights
American AirlinesPriceFrom $972Free CancellationRating
7.1
11,842 reviews
Search American 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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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
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport