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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $323

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 4/1. 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
11:20 pm - 4:20 am
ORD
-
AEP
27h 00m
3 stops
Multiple Airlines Logo
2:45 pm - 9:20 pm
AEP
-
ORD
32h 35m
2 stops
$913Multiple Airlines
Sat, May 9 - Sun, May 17
Multiple Airlines Logo
11:20 pm - 9:20 pm
ORD
-
AEP
20h 00m
2 stops
Multiple Airlines Logo
3:55 pm - 9:20 pm
AEP
-
ORD
31h 25m
2 stops
$915Multiple Airlines
Sun, May 17 - Wed, May 27
LATAM Airlines Logo
2:25 pm - 12:00 pm
ORD
-
AEP
19h 35m
2 stops
LATAM Airlines Logo
8:05 pm - 5:35 pm
AEP
-
ORD
23h 30m
2 stops
$917LATAM Airlines
Mon, Apr 27 - Wed, May 6
Multiple Airlines Logo
1:49 pm - 4:00 pm
ORD
-
AEP
24h 11m
3 stops
Multiple Airlines Logo
5:05 pm - 11:47 pm
AEP
-
ORD
32h 42m
2 stops
$918Multiple Airlines
Thu, May 21 - Tue, Jun 2
Multiple Airlines Logo
11:20 pm - 11:30 pm
ORD
-
AEP
22h 10m
2 stops
Multiple Airlines Logo
5:05 pm - 11:47 pm
AEP
-
ORD
32h 42m
2 stops
$921Multiple Airlines
Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
7:17 am - 11:20 am
ORD
-
AEP
26h 03m
3 stops
Multiple Airlines Logo
5:45 am - 6:31 pm
AEP
-
ORD
38h 46m
3 stops
$925Multiple Airlines
Sat, Mar 14 - Mon, Mar 23
Multiple Airlines Logo
5:15 am - 6:40 pm
ORD
-
AEP
35h 25m
3 stops
Multiple Airlines Logo
3:50 pm - 6:31 pm
AEP
-
ORD
28h 41m
3 stops
$927Multiple Airlines
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
11:20 pm - 12:52 am
ORD
-
AEP
23h 32m
3 stops
Multiple Airlines Logo
3:55 pm - 9:20 pm
AEP
-
ORD
31h 25m
3 stops
$928Multiple Airlines
Fri, May 15 - Sat, May 23
Multiple Airlines Logo
11:20 pm - 12:20 am
ORD
-
AEP
23h 00m
3 stops
Multiple Airlines Logo
10:10 pm - 9:20 pm
AEP
-
ORD
25h 10m
2 stops
$932Multiple Airlines
Sun, Apr 12 - Sun, Apr 26
Multiple Airlines Logo
7:00 am - 8:30 am
ORD
-
AEP
22h 30m
2 stops
Multiple Airlines Logo
5:00 pm - 5:15 pm
AEP
-
ORD
26h 15m
2 stops
$936Multiple Airlines
Wed, Mar 4 - Wed, Mar 11

LATAM Airlines flights from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Apr 27
ORD2:25 pmChicago O'Hare Intl
19h 35m
2 stops
AEP12:00 pmBuenos Aires Jorge Newbery
May 6
AEP8:05 pmBuenos Aires Jorge Newbery
23h 30m
2 stops
ORD5:35 pmChicago O'Hare Intl
$917
LATAM Airlines
Apr 19
ORD6:21 pmChicago O'Hare Intl
19h 39m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Apr 27
AEP8:05 pmBuenos Aires Jorge Newbery
22h 37m
2 stops
ORD4:42 pmChicago O'Hare Intl
$937
LATAM Airlines
Mar 5
ORD10:36 amChicago O'Hare Intl
20h 54m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Apr 2
AEP3:45 pmBuenos Aires Jorge Newbery
27h 25m
2 stops
ORD5:10 pmChicago O'Hare Intl
$1,001

Avianca flights from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
May 10
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
May 27
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$957
Avianca
Mar 31
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
May 2
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$959
Avianca
Apr 29
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
May 5
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$970

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery 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 10, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 5/9

11:20 pm-4:20 am

3 stops27h 00m

Buenos Aires Jorge Newbery

Sun 5/17

2:45 pm-9:20 pm

2 stops32h 35m

$913

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sun 5/17

11:20 pm-9:20 pm

2 stops20h 00m

Buenos Aires Jorge Newbery

Wed 5/27

3:55 pm-9:20 pm

2 stops31h 25m

$915

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 4/27

2:25 pm-12:00 pm

2 stops19h 35m

Buenos Aires Jorge Newbery

Wed 5/6

8:05 pm-5:35 pm

2 stops23h 30m

$917

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 5/21

1:49 pm-4:00 pm

3 stops24h 11m

Buenos Aires Jorge Newbery

Tue 6/2

5:05 pm-11:47 pm

2 stops32h 42m

$918

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 6/9

11:20 pm-11:30 pm

2 stops22h 10m

Buenos Aires Jorge Newbery

Tue 6/16

5:05 pm-11:47 pm

2 stops32h 42m

$921

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 3/14

7:17 am-11:20 am

3 stops26h 03m

Buenos Aires Jorge Newbery

Mon 3/23

5:45 am-6:31 pm

3 stops38h 46m

$925

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 3/11

5:15 am-6:40 pm

3 stops35h 25m

Buenos Aires Jorge Newbery

Wed 3/18

3:50 pm-6:31 pm

3 stops28h 41m

$927

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Fri 5/15

11:20 pm-12:52 am

3 stops23h 32m

Buenos Aires Jorge Newbery

Sat 5/23

3:55 pm-9:20 pm

3 stops31h 25m

$928

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sun 4/12

11:20 pm-12:20 am

3 stops23h 00m

Buenos Aires Jorge Newbery

Sun 4/26

10:10 pm-9:20 pm

2 stops25h 10m

$932

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 3/4

7:00 am-8:30 am

2 stops22h 30m

Buenos Aires Jorge Newbery

Wed 3/11

5:00 pm-5:15 pm

2 stops26h 15m

$936

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 Jorge Newbery 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

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

You could potentially save up to 40% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport flight.

When to book flights from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery 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 Jorge Newbery 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 Jorge Newbery Airport (ORD to AEP) 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 Jorge Newbery Airport

Fastest flight time

17h 50m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport takes 17h 50m
There are no direct flights from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport.
Search flight deals

  • How far is Chicago O'Hare Intl to Buenos Aires Jorge Newbery by plane?

    The distance between Chicago O'Hare Intl and Buenos Aires Jorge Newbery is about 5604.5 mi. Typically, this will take 17h 50m by plane in normal conditions.

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

    Prices for flights from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport.

  • What documentation or ID do you need to fly to Buenos Aires Jorge Newbery Airport?

    The travel and health documents you'll need for your trip to Buenos Aires Jorge Newbery Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires Jorge Newbery Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Buenos Aires. momondo saves you time and could save you money on your trip.

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?

momondo helps you find the best flight between Chicago and Buenos Aires by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Chicago to Buenos Aires flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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