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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $347

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 2/11. 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
6:57 pm - 7:30 am
ORD
-
AEP
33h 33m2 stops
Multiple Airlines Logo
5:10 pm - 11:22 am
AEP
-
ORD
21h 12m2 stops
$809Multiple Airlines
Sat, Jan 24 - Fri, Feb 6
Multiple Airlines Logo
6:57 pm - 7:30 am
ORD
-
AEP
33h 33m2 stops
Multiple Airlines Logo
5:10 pm - 11:47 am
AEP
-
ORD
21h 37m3 stops
$830Multiple Airlines
Sat, Jan 24 - Fri, Feb 6
Multiple Airlines Logo
6:57 pm - 7:30 am
ORD
-
AEP
33h 33m2 stops
Multiple Airlines Logo
1:50 pm - 10:06 pm
AEP
-
ORD
35h 16m3 stops
$861Multiple Airlines
Sat, Jan 17 - Sun, Jan 25
Multiple Airlines Logo
7:20 am - 7:30 am
ORD
-
AEP
21h 10m2 stops
Multiple Airlines Logo
5:10 pm - 11:22 am
AEP
-
ORD
21h 12m2 stops
$862Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
7:20 am - 7:30 am
ORD
-
AEP
21h 10m2 stops
Multiple Airlines Logo
5:10 pm - 7:47 pm
AEP
-
ORD
29h 37m3 stops
$867Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
7:20 am - 1:00 pm
ORD
-
AEP
26h 40m3 stops
Multiple Airlines Logo
5:10 pm - 11:47 am
AEP
-
ORD
21h 37m3 stops
$891Multiple Airlines
Sat, Jan 24 - Fri, Feb 6
Multiple Airlines Logo
6:34 pm - 3:40 am
ORD
-
AEP
31h 06m3 stops
Multiple Airlines Logo
10:30 pm - 10:10 pm
AEP
-
ORD
25h 40m2 stops
$903Multiple Airlines
Sat, May 30 - Sat, Jun 6
Multiple Airlines Logo
5:15 am - 3:40 am
ORD
-
AEP
43h 25m3 stops
Multiple Airlines Logo
5:10 pm - 7:47 pm
AEP
-
ORD
29h 37m3 stops
$907Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
7:20 am - 1:00 pm
ORD
-
AEP
26h 40m3 stops
Multiple Airlines Logo
1:50 pm - 10:06 pm
AEP
-
ORD
35h 16m3 stops
$908Multiple Airlines
Sat, Jan 17 - Sun, Jan 25
Multiple Airlines Logo
4:19 pm - 7:30 am
ORD
-
AEP
60h 11m3 stops
Multiple Airlines Logo
9:50 am - 10:06 pm
AEP
-
ORD
39h 16m3 stops
$916Multiple Airlines
Thu, Feb 5 - Thu, Feb 12

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
Mar 2
ORD10:36 amChicago O'Hare Intl
20h 54m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Mar 16
AEP3:40 pmBuenos Aires Jorge Newbery
20h 25m
2 stops
ORD10:05 amChicago O'Hare Intl
$936
Find similar
LATAM Airlines
Apr 7
ORD2:38 pmChicago O'Hare Intl
17h 02m
2 stops
AEP9:40 amBuenos Aires Jorge Newbery
Apr 15
AEP8:05 pmBuenos Aires Jorge Newbery
19h 18m
2 stops
ORD1:23 pmChicago O'Hare Intl
$1,008
Find similar
LATAM Airlines
Feb 22
ORD2:46 pmChicago O'Hare Intl
22h 14m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Mar 12
AEP2:55 pmBuenos Aires Jorge Newbery
24h 32m
2 stops
ORD1:27 pmChicago O'Hare Intl
$1,048
Find similar

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
Mar 15
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Mar 21
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,035
Find similar
Avianca
Mar 8
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Mar 15
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,116
Find similar
Avianca
Feb 4
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Feb 8
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,154
Find similar

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 December 23, 2025.
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 1/24

6:57 pm-7:30 am

2 stops33h 33m

Buenos Aires Jorge Newbery

Fri 2/6

5:10 pm-11:22 am

2 stops21h 12m

$809

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 1/24

6:57 pm-7:30 am

2 stops33h 33m

Buenos Aires Jorge Newbery

Fri 2/6

5:10 pm-11:47 am

3 stops21h 37m

$830

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 1/17

6:57 pm-7:30 am

2 stops33h 33m

Buenos Aires Jorge Newbery

Sun 1/25

1:50 pm-10:06 pm

3 stops35h 16m

$861

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 2/4

7:20 am-7:30 am

2 stops21h 10m

Buenos Aires Jorge Newbery

Wed 2/11

5:10 pm-11:22 am

2 stops21h 12m

$862

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 2/4

7:20 am-7:30 am

2 stops21h 10m

Buenos Aires Jorge Newbery

Wed 2/11

5:10 pm-7:47 pm

3 stops29h 37m

$867

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 1/24

7:20 am-1:00 pm

3 stops26h 40m

Buenos Aires Jorge Newbery

Fri 2/6

5:10 pm-11:47 am

3 stops21h 37m

$891

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 5/30

6:34 pm-3:40 am

3 stops31h 06m

Buenos Aires Jorge Newbery

Sat 6/6

10:30 pm-10:10 pm

2 stops25h 40m

$903

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 2/4

5:15 am-3:40 am

3 stops43h 25m

Buenos Aires Jorge Newbery

Wed 2/11

5:10 pm-7:47 pm

3 stops29h 37m

$907

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 1/17

7:20 am-1:00 pm

3 stops26h 40m

Buenos Aires Jorge Newbery

Sun 1/25

1:50 pm-10:06 pm

3 stops35h 16m

$908

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 2/5

4:19 pm-7:30 am

3 stops60h 11m

Buenos Aires Jorge Newbery

Thu 2/12

9:50 am-10:06 pm

3 stops39h 16m

$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 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

What is the cheapest time of day to depart on your flight to Buenos Aires Jorge Newbery Airport?

Flying to Buenos Aires Jorge Newbery Airport from Chicago O'Hare Intl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,202 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to Buenos Aires Jorge Newbery Airport, so prices are often more expensive at around $1,263 per ticket.

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

16h 05m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport takes 16h 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

  • 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 16h 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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