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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $294

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 O'Hare Intl Airport to Buenos Aires departing on 9/28. 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 O'Hare Intl Airport to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Arajet Logo
12:12 pm - 4:10 am
ORD
-
EZE
13h 58m
1 stop
Arajet Logo
8:40 am - 9:20 pm
EZE
-
ORD
15h 40m
1 stop
$731Arajet
Sat, Oct 24 - Sun, Nov 1
Arajet Logo
12:12 pm - 4:10 am
ORD
-
EZE
13h 58m
1 stop
Arajet Logo
9:45 am - 11:40 pm
EZE
-
ORD
15h 55m
1 stop
$733Arajet
Sat, Aug 22 - Thu, Sep 3
Arajet Logo
12:12 pm - 4:10 am
ORD
-
EZE
13h 58m
1 stop
Arajet Logo
9:45 am - 11:40 pm
EZE
-
ORD
15h 55m
1 stop
$735Arajet
Sat, Aug 22 - Thu, Sep 3
Multiple Airlines Logo
12:44 am - 3:45 am
ORD
-
EZE
25h 01m
2 stops
Multiple Airlines Logo
9:15 pm - 11:40 pm
EZE
-
ORD
28h 25m
1 stop
$750Multiple Airlines
Mon, Aug 10 - Wed, Aug 19
Arajet Logo
5:30 am - 12:05 am
ORD
-
EZE
16h 35m
1 stop
Arajet Logo
8:40 am - 10:10 pm
EZE
-
ORD
15h 30m
1 stop
$753Arajet
Mon, Aug 24 - Sun, Sep 6
Arajet Logo
5:45 am - 6:45 am
ORD
-
EZE
22h 00m
1 stop
Arajet Logo
8:40 am - 9:20 pm
EZE
-
ORD
15h 40m
1 stop
$771Arajet
Fri, Nov 6 - Sun, Nov 8
Multiple Airlines Logo
5:13 pm - 7:30 am
ORD
-
EZE
36h 17m
2 stops
Multiple Airlines Logo
4:45 am - 11:12 am
EZE
-
ORD
32h 27m
1 stop
$772Multiple Airlines
Thu, Aug 13 - Fri, Aug 21
Multiple Airlines Logo
5:30 am - 1:05 pm
ORD
-
EZE
29h 35m
2 stops
Multiple Airlines Logo
9:15 pm - 11:12 am
EZE
-
ORD
15h 57m
1 stop
$775Multiple Airlines
Mon, Aug 17 - Fri, Aug 21
Arajet Logo
6:45 am - 6:45 am
ORD
-
EZE
22h 00m
1 stop
Arajet Logo
9:45 am - 11:40 pm
EZE
-
ORD
15h 55m
1 stop
$784Arajet
Fri, Aug 21 - Thu, Sep 3
Arajet Logo
12:12 pm - 4:10 am
ORD
-
EZE
13h 58m
1 stop
Arajet Logo
9:45 am - 11:40 pm
EZE
-
ORD
15h 55m
1 stop
$785Arajet
Sat, Aug 15 - Thu, Sep 3

Arajet flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

Our best Arajet deals on Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Arajet
Oct 24
ORD12:12 pmChicago O'Hare Intl
13h 58m
1 stop
EZE4:10 amBuenos Aires Ministro Pistarini
Nov 1
EZE8:40 amBuenos Aires Ministro Pistarini
15h 40m
1 stop
ORD9:20 pmChicago O'Hare Intl
$731
Arajet
Aug 22
ORD12:12 pmChicago O'Hare Intl
13h 58m
1 stop
EZE4:10 amBuenos Aires Ministro Pistarini
Sep 3
EZE9:45 amBuenos Aires Ministro Pistarini
15h 55m
1 stop
ORD11:40 pmChicago O'Hare Intl
$733
Arajet
Aug 22
ORD12:12 pmChicago O'Hare Intl
13h 58m
1 stop
EZE4:10 amBuenos Aires Ministro Pistarini
Sep 3
EZE9:45 amBuenos Aires Ministro Pistarini
15h 55m
1 stop
ORD11:40 pmChicago O'Hare Intl
$735

Copa Airlines flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

Our best Copa Airlines deals on Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Copa Airlines
May 28
ORD8:02 amChicago O'Hare Intl
16h 28m
1 stop
EZE2:30 amBuenos Aires Ministro Pistarini
Jun 2
EZE2:49 pmBuenos Aires Ministro Pistarini
25h 17m
1 stop
ORD2:06 pmChicago O'Hare Intl
$1,038
Copa Airlines
Jun 8
ORD8:02 amChicago O'Hare Intl
18h 13m
1 stop
EZE4:15 amBuenos Aires Ministro Pistarini
Jun 22
EZE9:02 amBuenos Aires Ministro Pistarini
31h 04m
1 stop
ORD2:06 pmChicago O'Hare Intl
$1,091

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport 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 May 27, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport 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

Sat 10/24

12:12 pm-4:10 am

1 stop13h 58m

Buenos Aires Ministro Pistarini

Sun 11/1

8:40 am-9:20 pm

1 stop15h 40m

$731

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sat 8/22

12:12 pm-4:10 am

1 stop13h 58m

Buenos Aires Ministro Pistarini

Thu 9/3

9:45 am-11:40 pm

1 stop15h 55m

$733

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sat 8/22

12:12 pm-4:10 am

1 stop13h 58m

Buenos Aires Ministro Pistarini

Thu 9/3

9:45 am-11:40 pm

1 stop15h 55m

$735

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 8/10

12:44 am-3:45 am

2 stops25h 01m

Buenos Aires Ministro Pistarini

Wed 8/19

9:15 pm-11:40 pm

1 stop28h 25m

$750

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 8/24

5:30 am-12:05 am

1 stop16h 35m

Buenos Aires Ministro Pistarini

Sun 9/6

8:40 am-10:10 pm

1 stop15h 30m

$753

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 11/6

5:45 am-6:45 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

Sun 11/8

8:40 am-9:20 pm

1 stop15h 40m

$771

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Thu 8/13

5:13 pm-7:30 am

2 stops36h 17m

Buenos Aires Ministro Pistarini

Fri 8/21

4:45 am-11:12 am

1 stop32h 27m

$772

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 8/17

5:30 am-1:05 pm

2 stops29h 35m

Buenos Aires Ministro Pistarini

Fri 8/21

9:15 pm-11:12 am

1 stop15h 57m

$775

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 8/21

6:45 am-6:45 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

Thu 9/3

9:45 am-11:40 pm

1 stop15h 55m

$784

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sat 8/15

12:12 pm-4:10 am

1 stop13h 58m

Buenos Aires Ministro Pistarini

Thu 9/3

9:45 am-11:40 pm

1 stop15h 55m

$785

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

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 O'Hare Intl Airport and Buenos Aires Ministro Pistarini Airport?

What is the cheapest month to fly to Buenos Aires Ministro Pistarini Airport?

If you aren’t able to travel during the month of November, then book flights to Buenos Aires Ministro Pistarini Airport from Chicago O'Hare Intl Airport during May instead. Flights to Buenos Aires Ministro Pistarini Airport in May, while not as cheap as those in November, still average around $990.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

You are more likely to see cheaper flights to Buenos Aires Ministro Pistarini Airport from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires Ministro Pistarini Airport for around $1,117 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires Ministro Pistarini Airport from Chicago O'Hare Intl Airport for as low as $747 on momondo.

How have Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight prices changed over time?

As of May 2026, prices for Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flights are approximately 37% cheaper when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

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

Cheap Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport (ORD to EZE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

Fastest flight time

13h 39m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport takes 13h 39m
There are no direct flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport. There are no popular flight routes from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport.
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Frequently asked questions about flying from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

  • How far is Chicago O'Hare Intl to Buenos Aires Ministro Pistarini by plane?

    Buenos Aires Ministro Pistarini is 5618.9 mi away from Chicago O'Hare Intl. Typically, this will take 13h 39m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport.

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

    The required travel and health documents for your Buenos Aires Ministro Pistarini Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires Ministro Pistarini Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

Best airlines flying from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport with momondo
Airline
Rating
Free Cancellation
Price
ArajetPriceFrom $360Free CancellationRating
6.5
48 reviews
Search Arajet flights
Copa AirlinesPriceFrom $569Free CancellationRating
7.6
1,572 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $727Free CancellationRating
7.4
1,921 reviews
Search LATAM Airlines flights
AviancaPriceFrom $795Free CancellationRating
6.5
2,528 reviews
Search Avianca flights
DeltaPriceFrom $901Free CancellationRating
7.9
8,423 reviews
Search Delta flights
United AirlinesPriceFrom $951Free CancellationRating
7.4
9,751 reviews
Search United Airlines flights
American AirlinesPriceFrom $972Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights

Why use momondo?

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

Finding the right flight to Buenos Aires from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

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?

Once you have performed a search for Chicago to Buenos Aires flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Chicago to Buenos Aires now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Buenos Aires and let you know when they change.

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