Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $273

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 4/23. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
8:42 pm - 10:20 am
ORD
-
EZE
35h 38m
3 stops
Multiple Airlines Logo
3:55 pm - 6:31 pm
EZE
-
ORD
28h 36m
2 stops
$905Multiple Airlines
Tue, Mar 10 - Fri, Mar 13
Multiple Airlines Logo
7:06 am - 6:20 am
ORD
-
EZE
21h 14m
2 stops
Multiple Airlines Logo
11:00 am - 11:40 pm
EZE
-
ORD
14h 40m
1 stop
$906Multiple Airlines
Tue, Apr 28 - Thu, May 14
Air Canada Logo
3:45 pm - 2:30 pm
ORD
-
EZE
20h 45m
2 stops
Air Canada Logo
4:35 pm - 4:59 pm
EZE
-
ORD
26h 24m
2 stops
$907Air Canada
Tue, Apr 28 - Thu, May 7
Multiple Airlines Logo
4:51 pm - 9:00 am
ORD
-
EZE
14h 09m
1 stop
Multiple Airlines Logo
1:10 pm - 9:50 am
EZE
-
ORD
22h 40m
1 stop
$908Multiple Airlines
Mon, Mar 30 - Mon, Apr 13
Multiple Airlines Logo
3:22 pm - 8:50 pm
ORD
-
EZE
27h 28m
2 stops
Multiple Airlines Logo
5:25 am - 12:23 am
EZE
-
ORD
68h 58m
3 stops
$909Multiple Airlines
Tue, Mar 24 - Sat, Mar 28
Air Canada Logo
7:13 am - 2:30 pm
ORD
-
EZE
29h 17m
2 stops
Air Canada Logo
4:35 pm - 8:00 am
EZE
-
ORD
41h 25m
3 stops
$910Air Canada
Tue, Mar 31 - Sat, May 2
Multiple Airlines Logo
3:52 pm - 9:00 am
ORD
-
EZE
15h 08m
1 stop
Multiple Airlines Logo
8:40 am - 10:10 pm
EZE
-
ORD
15h 30m
1 stop
$911Multiple Airlines
Thu, Apr 23 - Sun, May 10
Multiple Airlines Logo
11:20 pm - 11:36 pm
ORD
-
EZE
22h 16m
2 stops
Multiple Airlines Logo
9:55 pm - 11:40 pm
EZE
-
ORD
27h 45m
2 stops
$912Multiple Airlines
Wed, May 6 - Wed, May 13
Multiple Airlines Logo
5:05 am - 5:05 am
ORD
-
EZE
22h 00m
3 stops
Multiple Airlines Logo
9:15 pm - 9:57 am
EZE
-
ORD
14h 42m
1 stop
$913Multiple Airlines
Tue, Apr 28 - Fri, May 8
Multiple Airlines Logo
10:55 am - 4:35 am
ORD
-
EZE
39h 40m
2 stops
Multiple Airlines Logo
11:00 am - 8:25 am
EZE
-
ORD
23h 25m
1 stop
$914Multiple Airlines
Thu, Mar 12 - Sun, Mar 15

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

Our best Air Canada deals on Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Air Canada
Apr 28
ORD3:45 pmChicago O'Hare Intl
20h 45m
2 stops
EZE2:30 pmBuenos Aires Ministro Pistarini
May 7
EZE4:35 pmBuenos Aires Ministro Pistarini
26h 24m
2 stops
ORD4:59 pmChicago O'Hare Intl
$907
Air Canada
Apr 7
ORD8:40 amChicago O'Hare Intl
27h 50m
2 stops
EZE2:30 pmBuenos Aires Ministro Pistarini
May 9
EZE4:35 pmBuenos Aires Ministro Pistarini
41h 25m
3 stops
ORD8:00 amChicago O'Hare Intl
$910
Air Canada
Apr 7
ORD6:01 pmChicago O'Hare Intl
42h 29m
3 stops
EZE2:30 pmBuenos Aires Ministro Pistarini
May 9
EZE4:35 pmBuenos Aires Ministro Pistarini
43h 43m
3 stops
ORD10:18 amChicago O'Hare Intl
$918

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
Apr 25
ORD11:20 pmChicago O'Hare Intl
14h 20m
1 stop
EZE3:40 pmBuenos Aires Ministro Pistarini
May 11
EZE4:50 pmBuenos Aires Ministro Pistarini
30h 30m
1 stop
ORD9:20 pmChicago O'Hare Intl
$922
Avianca
Apr 11
ORD11:20 pmChicago O'Hare Intl
23h 05m
1 stop
EZE12:25 amBuenos Aires Ministro Pistarini
Apr 26
EZE4:50 pmBuenos Aires Ministro Pistarini
30h 30m
1 stop
ORD9:20 pmChicago O'Hare Intl
$928
Avianca
Apr 29
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
EZE5:40 amBuenos Aires Ministro Pistarini
May 3
EZE4:50 pmBuenos Aires Ministro Pistarini
30h 30m
1 stop
ORD9:20 pmChicago O'Hare Intl
$940

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 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

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 3/10

8:42 pm-10:20 am

3 stops35h 38m

Buenos Aires Ministro Pistarini

Fri 3/13

3:55 pm-6:31 pm

2 stops28h 36m

$905

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 4/28

7:06 am-6:20 am

2 stops21h 14m

Buenos Aires Ministro Pistarini

Thu 5/14

11:00 am-11:40 pm

1 stop14h 40m

$906

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 4/28

3:45 pm-2:30 pm

2 stops20h 45m

Buenos Aires Ministro Pistarini

Thu 5/7

4:35 pm-4:59 pm

2 stops26h 24m

$907

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 3/30

4:51 pm-9:00 am

1 stop14h 09m

Buenos Aires Ministro Pistarini

Mon 4/13

1:10 pm-9:50 am

1 stop22h 40m

$908

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 3/24

3:22 pm-8:50 pm

2 stops27h 28m

Buenos Aires Ministro Pistarini

Sat 3/28

5:25 am-12:23 am

3 stops68h 58m

$909

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 3/31

7:13 am-2:30 pm

2 stops29h 17m

Buenos Aires Ministro Pistarini

Sat 5/2

4:35 pm-8:00 am

3 stops41h 25m

$910

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Thu 4/23

3:52 pm-9:00 am

1 stop15h 08m

Buenos Aires Ministro Pistarini

Sun 5/10

8:40 am-10:10 pm

1 stop15h 30m

$911

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 5/6

11:20 pm-11:36 pm

2 stops22h 16m

Buenos Aires Ministro Pistarini

Wed 5/13

9:55 pm-11:40 pm

2 stops27h 45m

$912

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 4/28

5:05 am-5:05 am

3 stops22h 00m

Buenos Aires Ministro Pistarini

Fri 5/8

9:15 pm-9:57 am

1 stop14h 42m

$913

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Thu 3/12

10:55 am-4:35 am

2 stops39h 40m

Buenos Aires Ministro Pistarini

Sun 3/15

11:00 am-8:25 am

1 stop23h 25m

$914

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 32% 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 20m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport takes 14h 20m
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 20m 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
6.4
46 reviews
Search Arajet flights
Copa AirlinesPriceFrom $569Free CancellationRating
7.5
1,557 reviews
Search Copa Airlines flights
AviancaPriceFrom $750Free CancellationRating
6.6
2,497 reviews
Search Avianca flights
DeltaPriceFrom $951Free CancellationRating
7.9
8,242 reviews
Search Delta flights
United AirlinesPriceFrom $951Free CancellationRating
7.4
9,350 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,015Free CancellationRating
7.2
11,357 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.

An easier way to manage your Buenos Aires Ministro Pistarini Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 3/29
Sun 4/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Buenos Aires

Popular cities in Argentina

Popular flights according to clicks in the last 7 days on momondo
Flights to Buenos Aires Jorge Newbery Airportfrom $490