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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $343

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
1:40 am - 4:00 pm
ORD
-
AEP
36h 20m
3 stops
Multiple Airlines Logo
5:35 pm - 11:47 pm
AEP
-
ORD
32h 12m
2 stops
$914Multiple Airlines
Thu, Jun 11 - Wed, Jun 24
Multiple Airlines Logo
5:30 am - 10:25 am
ORD
-
AEP
26h 55m
2 stops
Multiple Airlines Logo
5:35 pm - 11:47 pm
AEP
-
ORD
32h 12m
2 stops
$915Multiple Airlines
Mon, Aug 10 - Wed, Aug 19
LATAM Airlines Logo
8:10 am - 7:40 am
ORD
-
AEP
21h 30m
2 stops
LATAM Airlines Logo
7:20 pm - 5:49 pm
AEP
-
ORD
24h 29m
2 stops
$932LATAM Airlines
Sun, May 24 - Thu, May 28
Multiple Airlines Logo
1:40 am - 5:40 am
ORD
-
AEP
26h 00m
3 stops
Multiple Airlines Logo
12:50 pm - 9:20 pm
AEP
-
ORD
34h 30m
2 stops
$959Multiple Airlines
Wed, Sep 30 - Thu, Oct 22
Multiple Airlines Logo
2:53 am - 5:40 am
ORD
-
AEP
24h 47m
3 stops
Multiple Airlines Logo
5:35 pm - 11:47 pm
AEP
-
ORD
32h 12m
2 stops
$963Multiple Airlines
Thu, Jun 11 - Wed, Jun 24
LATAM Airlines Logo
9:49 am - 7:40 am
ORD
-
AEP
19h 51m
2 stops
LATAM Airlines Logo
5:35 pm - 4:56 pm
AEP
-
ORD
25h 21m
2 stops
$967LATAM Airlines
Sun, May 24 - Sun, May 31
Multiple Airlines Logo
1:40 am - 5:40 am
ORD
-
AEP
26h 00m
3 stops
Multiple Airlines Logo
5:35 pm - 11:47 pm
AEP
-
ORD
32h 12m
2 stops
$972Multiple Airlines
Tue, Aug 4 - Thu, Aug 20
Multiple Airlines Logo
1:59 am - 5:40 am
ORD
-
AEP
25h 41m
3 stops
Multiple Airlines Logo
5:35 pm - 11:47 pm
AEP
-
ORD
32h 12m
2 stops
$973Multiple Airlines
Sun, Aug 9 - Wed, Aug 19
Multiple Airlines Logo
5:30 am - 9:41 am
ORD
-
AEP
26h 11m
2 stops
Multiple Airlines Logo
12:50 pm - 9:20 pm
AEP
-
ORD
34h 30m
2 stops
$980Multiple Airlines
Mon, Aug 10 - Mon, Aug 17
Multiple Airlines Logo
1:40 am - 5:40 am
ORD
-
AEP
26h 00m
3 stops
Multiple Airlines Logo
11:55 am - 9:20 pm
AEP
-
ORD
35h 25m
2 stops
$998Multiple Airlines
Tue, Aug 4 - Fri, Aug 28

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 16
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
May 23
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,211
Avianca
May 27
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Jun 1
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,212
Avianca
May 19
ORD10:35 amChicago O'Hare Intl
17h 05m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
May 23
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,223

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
May 24
ORD8:10 amChicago O'Hare Intl
21h 30m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
May 28
AEP7:20 pmBuenos Aires Jorge Newbery
24h 29m
2 stops
ORD5:49 pmChicago O'Hare Intl
$932
LATAM Airlines
May 24
ORD9:49 amChicago O'Hare Intl
19h 51m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
May 31
AEP5:35 pmBuenos Aires Jorge Newbery
25h 21m
2 stops
ORD4:56 pmChicago O'Hare Intl
$967
LATAM Airlines
May 24
ORD5:30 amChicago O'Hare Intl
24h 10m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
May 28
AEP7:20 pmBuenos Aires Jorge Newbery
24h 29m
2 stops
ORD5:49 pmChicago O'Hare Intl
$1,000

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 May 14, 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

Cheapest round-trip

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 6/11

1:40 am-4:00 pm

3 stops36h 20m

Buenos Aires Jorge Newbery

Wed 6/24

5:35 pm-11:47 pm

2 stops32h 12m

$914

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 8/10

5:30 am-10:25 am

2 stops26h 55m

Buenos Aires Jorge Newbery

Wed 8/19

5:35 pm-11:47 pm

2 stops32h 12m

$915

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sun 5/24

8:10 am-7:40 am

2 stops21h 30m

Buenos Aires Jorge Newbery

Thu 5/28

7:20 pm-5:49 pm

2 stops24h 29m

$932

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 9/30

1:40 am-5:40 am

3 stops26h 00m

Buenos Aires Jorge Newbery

Thu 10/22

12:50 pm-9:20 pm

2 stops34h 30m

$959

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 6/11

2:53 am-5:40 am

3 stops24h 47m

Buenos Aires Jorge Newbery

Wed 6/24

5:35 pm-11:47 pm

2 stops32h 12m

$963
Quickest round-trip

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sun 5/24

9:49 am-7:40 am

2 stops19h 51m

Buenos Aires Jorge Newbery

Sun 5/31

5:35 pm-4:56 pm

2 stops25h 21m

$967

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 8/4

1:40 am-5:40 am

3 stops26h 00m

Buenos Aires Jorge Newbery

Thu 8/20

5:35 pm-11:47 pm

2 stops32h 12m

$972

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sun 8/9

1:59 am-5:40 am

3 stops25h 41m

Buenos Aires Jorge Newbery

Wed 8/19

5:35 pm-11:47 pm

2 stops32h 12m

$973

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 8/10

5:30 am-9:41 am

2 stops26h 11m

Buenos Aires Jorge Newbery

Mon 8/17

12:50 pm-9:20 pm

2 stops34h 30m

$980

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 8/4

1:40 am-5:40 am

3 stops26h 00m

Buenos Aires Jorge Newbery

Fri 8/28

11:55 am-9:20 pm

2 stops35h 25m

$998

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 05m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport takes 17h 05m
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

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport

  • 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 05m 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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