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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $269

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 6/16. 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.
Multiple Airlines Logo
5:49 pm - 3:23 am
ORD
-
EZE
31h 34m
2 stops
Multiple Airlines Logo
1:10 pm - 11:56 pm
EZE
-
ORD
36h 46m
1 stop
$831Multiple Airlines
Sun, May 17 - Sun, May 31
Multiple Airlines Logo
3:57 pm - 10:00 am
ORD
-
EZE
40h 03m
2 stops
Multiple Airlines Logo
1:10 pm - 11:56 pm
EZE
-
ORD
36h 46m
1 stop
$833Multiple Airlines
Sun, Apr 26 - Sun, May 3
Multiple Airlines Logo
5:30 am - 8:10 pm
ORD
-
EZE
36h 40m
2 stops
Multiple Airlines Logo
8:40 am - 10:10 pm
EZE
-
ORD
15h 30m
1 stop
$834Multiple Airlines
Mon, Aug 17 - Sun, Aug 30
Multiple Airlines Logo
9:20 am - 10:00 am
ORD
-
EZE
22h 40m
2 stops
Multiple Airlines Logo
2:30 am - 11:56 pm
EZE
-
ORD
23h 26m
2 stops
$836Multiple Airlines
Mon, May 4 - Sun, May 10
Multiple Airlines Logo
6:30 am - 3:45 am
ORD
-
EZE
19h 15m
2 stops
Multiple Airlines Logo
8:40 am - 10:10 pm
EZE
-
ORD
15h 30m
1 stop
$837Multiple Airlines
Tue, Jun 23 - Sun, Jun 28
Arajet Logo
5:30 am - 12:05 am
ORD
-
EZE
16h 35m
1 stop
Arajet Logo
11:00 am - 11:40 pm
EZE
-
ORD
14h 40m
1 stop
$838Arajet
Mon, Aug 31 - Thu, Sep 3
Arajet Logo
12:12 pm - 4:10 am
ORD
-
EZE
13h 58m
1 stop
Arajet Logo
9:15 pm - 11:12 am
EZE
-
ORD
15h 57m
1 stop
$848Arajet
Sat, Aug 29 - Fri, Sep 4
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
$850Arajet
Mon, Oct 5 - Sun, Oct 11
Arajet Logo
12:12 pm - 4:10 am
ORD
-
EZE
13h 58m
1 stop
Arajet Logo
11:00 am - 11:40 pm
EZE
-
ORD
14h 40m
1 stop
$852Arajet
Sat, Aug 15 - Thu, Sep 3
Multiple Airlines Logo
11:20 pm - 3:40 pm
ORD
-
EZE
14h 20m
1 stop
Multiple Airlines Logo
2:49 pm - 11:56 pm
EZE
-
ORD
35h 07m
2 stops
$853Multiple Airlines
Wed, May 6 - Wed, May 13

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
Apr 20
ORD8:06 amChicago O'Hare Intl
14h 44m
1 stop
EZE12:50 amBuenos Aires Ministro Pistarini
May 3
EZE2:49 pmBuenos Aires Ministro Pistarini
36h 26m
1 stop
ORD1:15 amChicago O'Hare Intl
$889
Copa Airlines
Apr 24
ORD8:06 amChicago O'Hare Intl
16h 24m
1 stop
EZE2:30 amBuenos Aires Ministro Pistarini
May 24
EZE3:48 amBuenos Aires Ministro Pistarini
23h 27m
1 stop
ORD1:15 amChicago O'Hare Intl
$895
Copa Airlines
May 9
ORD3:21 pmChicago O'Hare Intl
31h 29m
1 stop
EZE12:50 amBuenos Aires Ministro Pistarini
May 24
EZE9:02 amBuenos Aires Ministro Pistarini
18h 13m
1 stop
ORD1:15 amChicago O'Hare Intl
$904

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

Our best LATAM Airlines deals on Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
LATAM Airlines
Apr 26
ORD5:53 pmChicago O'Hare Intl
13h 52m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Apr 27
EZE12:15 pmBuenos Aires Ministro Pistarini
31h 26m
2 stops
ORD5:41 pmChicago O'Hare Intl
$873
LATAM Airlines
Apr 24
ORD2:25 pmChicago O'Hare Intl
17h 20m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
May 25
EZE1:10 pmBuenos Aires Ministro Pistarini
26h 37m
2 stops
ORD1:47 pmChicago O'Hare Intl
$874
LATAM Airlines
Apr 24
ORD1:06 pmChicago O'Hare Intl
27h 15m
2 stops
EZE6:21 pmBuenos Aires Ministro Pistarini
May 24
EZE1:10 pmBuenos Aires Ministro Pistarini
23h 06m
2 stops
ORD10:16 amChicago O'Hare Intl
$893

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 April 10, 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

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 5/17

5:49 pm-3:23 am

2 stops31h 34m

Buenos Aires Ministro Pistarini

Sun 5/31

1:10 pm-11:56 pm

1 stop36h 46m

$831

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 4/26

3:57 pm-10:00 am

2 stops40h 03m

Buenos Aires Ministro Pistarini

Sun 5/3

1:10 pm-11:56 pm

1 stop36h 46m

$833

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 8/17

5:30 am-8:10 pm

2 stops36h 40m

Buenos Aires Ministro Pistarini

Sun 8/30

8:40 am-10:10 pm

1 stop15h 30m

$834

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 5/4

9:20 am-10:00 am

2 stops22h 40m

Buenos Aires Ministro Pistarini

Sun 5/10

2:30 am-11:56 pm

2 stops23h 26m

$836

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 6/23

6:30 am-3:45 am

2 stops19h 15m

Buenos Aires Ministro Pistarini

Sun 6/28

8:40 am-10:10 pm

1 stop15h 30m

$837

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 8/31

5:30 am-12:05 am

1 stop16h 35m

Buenos Aires Ministro Pistarini

Thu 9/3

11:00 am-11:40 pm

1 stop14h 40m

$838

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sat 8/29

12:12 pm-4:10 am

1 stop13h 58m

Buenos Aires Ministro Pistarini

Fri 9/4

9:15 pm-11:12 am

1 stop15h 57m

$848

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 10/5

5:30 am-12:05 am

1 stop16h 35m

Buenos Aires Ministro Pistarini

Sun 10/11

8:40 am-10:10 pm

1 stop15h 30m

$850
Quickest round-trip

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

11:00 am-11:40 pm

1 stop14h 40m

$852

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 5/6

11:20 pm-3:40 pm

1 stop14h 20m

Buenos Aires Ministro Pistarini

Wed 5/13

2:49 pm-11:56 pm

2 stops35h 07m

$853

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 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 April instead. Flights to Buenos Aires Ministro Pistarini Airport in April, while not as cheap as those in November, still average around $957.

How far in advance should I book a flight 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 $1,114 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 $760 on momondo.

Can stopping save me money on Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flights?

You could potentially save up to 36% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight.

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

As of April 2026, prices for Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flights are approximately 19% 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.
Search flight deals

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
47 reviews
Search Arajet flights
Copa AirlinesPriceFrom $569Free CancellationRating
7.5
1,575 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $727Free CancellationRating
7.4
1,910 reviews
Search LATAM Airlines flights
AviancaPriceFrom $750Free CancellationRating
6.5
2,503 reviews
Search Avianca flights
DeltaPriceFrom $951Free CancellationRating
7.9
8,402 reviews
Search Delta flights
United AirlinesPriceFrom $951Free CancellationRating
7.4
9,562 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,015Free CancellationRating
7.1
11,564 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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