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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $320

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
5:30 am - 12:05 amORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
16h 35m1 stop Punta Cana
Arajet Logo
7:45 am - 11:25 pmEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
17h 40m1 stop Punta Cana
$715Arajet
Mon, Apr 19 - Thu, Apr 29
Arajet Logo
5:45 am - 9:32 amORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
24h 47m1 stop Punta Cana
Arajet Logo
11:00 am - 10:40 pmEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
14h 40m1 stop Punta Cana
$843Arajet
Fri, Dec 4 - Thu, Dec 17
Avianca Logo
10:30 pm - 3:40 pmORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
14h 10m1 stop Bogotá El Dorado
Avianca Logo
1:40 am - 8:30 pmEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
21h 50m1 stop Bogotá El Dorado
$891Avianca
Tue, Dec 1 - Sun, Dec 6
Avianca Logo
10:30 pm - 3:40 pmORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
14h 10m1 stop Bogotá El Dorado
Avianca Logo
7:25 am - 8:30 pmEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
16h 05m1 stop Bogotá El Dorado
$891Avianca
Tue, Dec 1 - Tue, Dec 8
Multiple Airlines Logo
7:35 pm - 6:35 amORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
32h 00m3 stops Atlanta Hartsfield-Jackson Miami Punta Cana
Multiple Airlines Logo
5:35 am - 1:44 pmEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
35h 09m3 stops Santo Domingo Las Americas Miami Atlanta Hartsfield-Jackson
$898Multiple Airlines
Tue, Nov 17 - Tue, Nov 24
Multiple Airlines Logo
10:38 am - 7:35 amORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
41h 57m2 stops Baltimore/Washington Atlanta Hartsfield-Jackson
Multiple Airlines Logo
11:00 am - 10:40 pmEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
14h 40m1 stop Punta Cana
$908Multiple Airlines
Thu, Dec 3 - Thu, Dec 10
Copa Airlines Logo
2:13 pm - 12:52 amORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
31h 39m1 stop Panama City Tocumen Intl
Copa Airlines Logo
4:28 am - 12:11 amEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
22h 43m1 stop Panama City Tocumen Intl
$914Copa Airlines
Tue, Nov 17 - Sun, Dec 6
Copa Airlines Logo
7:35 am - 3:00 pmORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
28h 25m1 stop Panama City Tocumen Intl
Copa Airlines Logo
9:04 am - 11:44 pmEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
17h 40m1 stop Panama City Tocumen Intl
$914Copa Airlines
Wed, Mar 3 - Wed, Mar 10
Delta Logo
5:30 am - 9:40 amORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
25h 10m1 stop Atlanta Hartsfield-Jackson
Delta Logo
9:30 pm - 10:38 amEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
16h 08m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County
$916Delta
Thu, Nov 12 - Wed, Nov 25
Delta Logo
8:04 am - 9:40 amORD  Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini
22h 36m1 stop Atlanta Hartsfield-Jackson
Delta Logo
9:30 pm - 10:38 amEZE  Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl
16h 08m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County
$916Delta
Thu, Nov 12 - Wed, Nov 25

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

Our best Delta deals on Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Delta
Nov 12
ORD8:04 amChicago O'Hare Intl
22h 36m
1 stop
EZE9:40 amBuenos Aires Ministro Pistarini
Nov 25
EZE9:30 pmBuenos Aires Ministro Pistarini
16h 08m
2 stops
ORD10:38 amChicago O'Hare Intl
$916
Delta
Nov 27
ORD2:00 pmChicago O'Hare Intl
14h 35m
1 stop
EZE7:35 amBuenos Aires Ministro Pistarini
Dec 8
EZE7:20 amBuenos Aires Ministro Pistarini
19h 36m
2 stops
ORD11:56 pmChicago O'Hare Intl
$926
Delta
Nov 17
ORD3:59 pmChicago O'Hare Intl
14h 41m
1 stop
EZE9:40 amBuenos Aires Ministro Pistarini
Dec 7
EZE8:05 pmBuenos Aires Ministro Pistarini
20h 51m
2 stops
ORD1:56 pmChicago O'Hare Intl
$930

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
Apr 19
ORD5:30 amChicago O'Hare Intl
16h 35m
1 stop
EZE12:05 amBuenos Aires Ministro Pistarini
Apr 29
EZE7:45 amBuenos Aires Ministro Pistarini
17h 40m
1 stop
ORD11:25 pmChicago O'Hare Intl
$715
Arajet
Dec 4
ORD5:45 amChicago O'Hare Intl
24h 47m
1 stop
EZE9:32 amBuenos Aires Ministro Pistarini
Dec 17
EZE11:00 amBuenos Aires Ministro Pistarini
14h 40m
1 stop
ORD10:40 pmChicago O'Hare Intl
$843
Arajet
Mar 5
ORD5:45 amChicago O'Hare Intl
21h 50m
1 stop
EZE6:35 amBuenos Aires Ministro Pistarini
Mar 7
EZE8:40 amBuenos Aires Ministro Pistarini
16h 40m
1 stop
ORD10:20 pmChicago O'Hare Intl
$861

momondo Fare Finder

 
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 Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Mon 4/19

5:30 am-12:05 am

1 stop16h 35m

Buenos Aires Ministro Pistarini

Thu 4/29

7:45 am-11:25 pm

1 stop17h 40m

$715

ChicagoBuenos Aires

ORD Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Fri 12/4

5:45 am-9:32 am

1 stop24h 47m

Buenos Aires Ministro Pistarini

Thu 12/17

11:00 am-10:40 pm

1 stop14h 40m

$843

ChicagoBuenos Aires

ORD Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Tue 12/1

10:30 pm-3:40 pm

1 stop14h 10m

Buenos Aires Ministro Pistarini

Sun 12/6

1:40 am-8:30 pm

1 stop21h 50m

$891
Quickest round-trip

ChicagoBuenos Aires

ORD Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Tue 12/1

10:30 pm-3:40 pm

1 stop14h 10m

Buenos Aires Ministro Pistarini

Tue 12/8

7:25 am-8:30 pm

1 stop16h 05m

$891

ChicagoBuenos Aires

ORD Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Tue 11/17

7:35 pm-6:35 am

3 stops32h 00m

Buenos Aires Ministro Pistarini

Tue 11/24

5:35 am-1:44 pm

3 stops35h 09m

$898

ChicagoBuenos Aires

ORD Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Thu 12/3

10:38 am-7:35 am

2 stops41h 57m

Buenos Aires Ministro Pistarini

Thu 12/10

11:00 am-10:40 pm

1 stop14h 40m

$908

ChicagoBuenos Aires

ORD Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Tue 11/17

2:13 pm-12:52 am

1 stop31h 39m

Buenos Aires Ministro Pistarini

Sun 12/6

4:28 am-12:11 am

1 stop22h 43m

$914

ChicagoBuenos Aires

ORD Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Wed 3/3

7:35 am-3:00 pm

1 stop28h 25m

Buenos Aires Ministro Pistarini

Wed 3/10

9:04 am-11:44 pm

1 stop17h 40m

$914

ChicagoBuenos Aires

ORD Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Thu 11/12

5:30 am-9:40 am

1 stop25h 10m

Buenos Aires Ministro Pistarini

Wed 11/25

9:30 pm-10:38 am

2 stops16h 08m

$916

ChicagoBuenos Aires

ORD Chicago O'Hare Intl - EZE Buenos Aires Ministro Pistarini

ORDEZE

Chicago O'Hare Intl

Thu 11/12

8:04 am-9:40 am

1 stop22h 36m

Buenos Aires Ministro Pistarini

Wed 11/25

9:30 pm-10:38 am

2 stops16h 08m

$916

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,005 to $1,390.
The lowest price recently found on this route was $715.

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

If you aren’t able to travel during the month of May, then book flights to Buenos Aires Ministro Pistarini Airport from Chicago O'Hare Intl Airport during November instead. Flights to Buenos Aires Ministro Pistarini Airport in November, while not as cheap as those in May, still average around $951.

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 $1,224 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 $625 on momondo.

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

As of October 2026, prices for Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flights are approximately 20% 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

Best Price Found

$320

Fastest flight time

14h 25m

Direct flights

None
The best one-way flight to Buenos Aires Ministro Pistarini Airport from Chicago O'Hare Intl Airport in the past 72 hours is $320. The best round-trip flight deal from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport found on momondo in the last 72 hours is $715.
The fastest flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport takes 14h 25m
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 14h 25m 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 $576Free CancellationRating
6.4
59 reviews
Search Arajet flights
LATAM AirlinesPriceFrom $727Free CancellationRating
7.4
1,971 reviews
Search LATAM Airlines flights
Copa AirlinesPriceFrom $770Free CancellationRating
7.6
1,559 reviews
Search Copa Airlines flights
AviancaPriceFrom $792Free CancellationRating
6.5
2,552 reviews
Search Avianca flights
DeltaPriceFrom $901Free CancellationRating
7.8
8,661 reviews
Search Delta flights
United AirlinesPriceFrom $951Free CancellationRating
7.3
10,401 reviews
Search United Airlines flights
American AirlinesPriceFrom $968Free CancellationRating
7.0
12,186 reviews
Search American Airlines flights
AeromexicoPriceFrom $1,025Free CancellationRating
7.5
1,437 reviews
Search Aeromexico 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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