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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $291

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 4/2. 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
11:27 am - 11:36 pm
ORD
-
EZE
34h 09m
3 stops
Multiple Airlines Logo
9:15 pm - 10:10 pm
EZE
-
ORD
26h 55m
1 stop
$916Multiple Airlines
Sat, Apr 18 - Sat, Apr 25
Multiple Airlines Logo
12:44 pm - 3:45 am
ORD
-
EZE
36h 01m
3 stops
Multiple Airlines Logo
5:25 am - 12:40 am
EZE
-
ORD
45h 15m
3 stops
$917Multiple Airlines
Wed, Mar 4 - Tue, Mar 10
Multiple Airlines Logo
1:55 pm - 11:56 pm
ORD
-
EZE
32h 01m
3 stops
Multiple Airlines Logo
11:35 am - 9:20 pm
EZE
-
ORD
35h 45m
3 stops
$918Multiple Airlines
Wed, Mar 25 - Mon, Mar 30
Multiple Airlines Logo
11:20 pm - 5:40 am
ORD
-
EZE
28h 20m
1 stop
Multiple Airlines Logo
9:15 pm - 5:52 am
EZE
-
ORD
34h 37m
3 stops
$919Multiple Airlines
Fri, May 29 - Sat, Jun 6
Arajet Logo
6:45 am - 12:05 am
ORD
-
EZE
15h 20m
1 stop
Arajet Logo
9:15 pm - 11:40 pm
EZE
-
ORD
28h 25m
1 stop
$920Arajet
Wed, Mar 25 - Mon, Mar 30
Multiple Airlines Logo
11:20 pm - 11:36 pm
ORD
-
EZE
22h 16m
2 stops
Multiple Airlines Logo
10:45 pm - 12:09 pm
EZE
-
ORD
15h 24m
1 stop
$921Multiple Airlines
Wed, May 13 - Mon, May 25
Multiple Airlines Logo
3:45 pm - 2:30 pm
ORD
-
EZE
20h 45m
2 stops
Multiple Airlines Logo
8:40 am - 10:10 pm
EZE
-
ORD
15h 30m
1 stop
$922Multiple Airlines
Fri, Apr 3 - Sun, Apr 19
Multiple Airlines Logo
9:18 am - 10:15 am
ORD
-
EZE
21h 57m
2 stops
Multiple Airlines Logo
9:15 pm - 9:57 am
EZE
-
ORD
14h 42m
1 stop
$923Multiple Airlines
Fri, Mar 6 - Fri, Apr 17
Aeromexico Logo
1:58 am - 9:55 pm
ORD
-
EZE
17h 57m
1 stop
Aeromexico Logo
12:00 pm - 1:43 pm
EZE
-
ORD
27h 43m
1 stop
$924Aeromexico
Sun, Mar 15 - Mon, Mar 23
Copa Airlines Logo
8:34 am - 4:10 am
ORD
-
EZE
17h 36m
1 stop
Copa Airlines Logo
3:47 am - 1:04 am
EZE
-
ORD
23h 17m
1 stop
$925Copa Airlines
Sun, Mar 8 - Sat, Mar 14

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

Our best Avianca deals on Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Avianca
Mar 31
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
EZE5:40 amBuenos Aires Ministro Pistarini
May 2
EZE4:50 pmBuenos Aires Ministro Pistarini
30h 30m
1 stop
ORD9:20 pmChicago O'Hare Intl
$927
Avianca
Apr 28
ORD11:20 pmChicago O'Hare Intl
14h 20m
1 stop
EZE3:40 pmBuenos Aires Ministro Pistarini
May 11
EZE7:10 amBuenos Aires Ministro Pistarini
16h 10m
1 stop
ORD9:20 pmChicago O'Hare Intl
$930
Avianca
May 13
ORD11:20 pmChicago O'Hare Intl
14h 20m
1 stop
EZE3:40 pmBuenos Aires Ministro Pistarini
May 21
EZE7:10 amBuenos Aires Ministro Pistarini
16h 10m
1 stop
ORD9:20 pmChicago O'Hare Intl
$932

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
Mar 3
ORD9:52 amChicago O'Hare Intl
20h 08m
1 stop
EZE9:00 amBuenos Aires Ministro Pistarini
Mar 10
EZE10:25 pmBuenos Aires Ministro Pistarini
16h 32m
1 stop
ORD12:57 pmChicago O'Hare Intl
$937
LATAM Airlines
Mar 2
ORD2:46 pmChicago O'Hare Intl
15h 14m
1 stop
EZE9:00 amBuenos Aires Ministro Pistarini
Apr 1
EZE11:30 amBuenos Aires Ministro Pistarini
23h 00m
2 stops
ORD8:30 amChicago O'Hare Intl
$944
LATAM Airlines
May 16
ORD9:10 amChicago O'Hare Intl
22h 35m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
May 23
EZE11:30 amBuenos Aires Ministro Pistarini
24h 10m
2 stops
ORD9:40 amChicago O'Hare Intl
$951

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 February 17, 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

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sat 4/18

11:27 am-11:36 pm

3 stops34h 09m

Buenos Aires Ministro Pistarini

Sat 4/25

9:15 pm-10:10 pm

1 stop26h 55m

$916

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 3/4

12:44 pm-3:45 am

3 stops36h 01m

Buenos Aires Ministro Pistarini

Tue 3/10

5:25 am-12:40 am

3 stops45h 15m

$917

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 3/25

1:55 pm-11:56 pm

3 stops32h 01m

Buenos Aires Ministro Pistarini

Mon 3/30

11:35 am-9:20 pm

3 stops35h 45m

$918

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 5/29

11:20 pm-5:40 am

1 stop28h 20m

Buenos Aires Ministro Pistarini

Sat 6/6

9:15 pm-5:52 am

3 stops34h 37m

$919

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 3/25

6:45 am-12:05 am

1 stop15h 20m

Buenos Aires Ministro Pistarini

Mon 3/30

9:15 pm-11:40 pm

1 stop28h 25m

$920

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 5/13

11:20 pm-11:36 pm

2 stops22h 16m

Buenos Aires Ministro Pistarini

Mon 5/25

10:45 pm-12:09 pm

1 stop15h 24m

$921

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 4/3

3:45 pm-2:30 pm

2 stops20h 45m

Buenos Aires Ministro Pistarini

Sun 4/19

8:40 am-10:10 pm

1 stop15h 30m

$922

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 3/6

9:18 am-10:15 am

2 stops21h 57m

Buenos Aires Ministro Pistarini

Fri 4/17

9:15 pm-9:57 am

1 stop14h 42m

$923

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 3/15

1:58 am-9:55 pm

1 stop17h 57m

Buenos Aires Ministro Pistarini

Mon 3/23

12:00 pm-1:43 pm

1 stop27h 43m

$924

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 3/8

8:34 am-4:10 am

1 stop17h 36m

Buenos Aires Ministro Pistarini

Sat 3/14

3:47 am-1:04 am

1 stop23h 17m

$925

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 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 September instead. Flights to Buenos Aires Ministro Pistarini Airport in September, while not as cheap as those in November, still average around $1,028.

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 $1,105 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 33% 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 February 2026, prices for Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flights are approximately 34% 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

14h 18m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport takes 14h 18m
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

  • 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 18m 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
6.6
44 reviews
Search Arajet flights
Copa AirlinesPriceFrom $569Free CancellationRating
7.5
1,556 reviews
Search Copa Airlines flights
AviancaPriceFrom $750Free CancellationRating
6.6
2,497 reviews
Search Avianca flights
DeltaPriceFrom $951Free CancellationRating
7.9
8,206 reviews
Search Delta flights
United AirlinesPriceFrom $951Free CancellationRating
7.4
9,308 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,015Free CancellationRating
7.2
11,294 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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