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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $305

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 8/26. 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

Logo
6:30 am - 5:30 pmORD-AEP
33h 00m3 stops
Logo
9:50 am - 9:18 amAEP-ORD
25h 28m3 stops
$823
Find Deal
Wed, Sep 24 - Wed, Oct 15
Logo
10:27 am - 8:20 amORD-AEP
19h 53m2 stops
Logo
3:40 pm - 10:48 pmAEP-ORD
33h 08m3 stops
$844
Find Deal
Mon, Sep 22 - Mon, Oct 6
Logo
10:27 am - 8:20 amORD-AEP
19h 53m2 stops
Logo
9:00 am - 9:58 pmAEP-ORD
38h 58m3 stops
$846
Find Deal
Mon, Sep 15 - Mon, Sep 22
Logo
6:30 am - 2:20 amORD-AEP
41h 50m3 stops
Logo
9:00 am - 9:58 pmAEP-ORD
38h 58m3 stops
$847
Find Deal
Thu, Sep 11 - Mon, Sep 22
Logo
5:05 am - 4:40 amORD-AEP
21h 35m2 stops
Logo
12:05 am - 9:58 pmAEP-ORD
47h 53m3 stops
$852
Find Deal
Sat, Sep 13 - Fri, Sep 19
Logo
5:05 am - 9:30 amORD-AEP
26h 25m3 stops
Logo
12:05 am - 6:50 pmAEP-ORD
44h 45m3 stops
$857
Find Deal
Sat, Aug 30 - Fri, Sep 5
Logo
10:23 am - 8:20 amORD-AEP
19h 57m2 stops
Logo
10:55 am - 9:58 pmAEP-ORD
37h 03m3 stops
$861
Find Deal
Mon, Oct 13 - Wed, Oct 22
Logo
6:56 am - 11:20 amORD-AEP
26h 24m3 stops
Logo
1:40 pm - 10:22 pmAEP-ORD
34h 42m3 stops
$866
Find Deal
Mon, Aug 25 - Sat, Aug 30
Logo
6:30 am - 11:20 pmORD-AEP
38h 50m3 stops
Logo
12:05 am - 9:58 pmAEP-ORD
47h 53m3 stops
$867
Find Deal
Sun, Sep 14 - Sat, Sep 20
LATAM Airlines Logo
5:31 pm - 5:00 pmORD-AEP
21h 29m2 stops
LATAM Airlines Logo
3:40 pm - 12:16 pmAEP-ORD
22h 36m2 stops
$929LATAM Airlines
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Thu, Sep 25 - Mon, Oct 6

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

Our best GOL deals on Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport flight tickets
GOL
Aug 11
ORD9:40 amChicago O'Hare Intl
25h 20m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Aug 15
AEP3:40 amBuenos Aires Jorge Newbery
22h 17m
2 stops
ORD11:57 pmChicago O'Hare Intl
$1,675
Find similar
GOL
Aug 11
ORD2:32 pmChicago O'Hare Intl
20h 28m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Aug 15
AEP3:40 amBuenos Aires Jorge Newbery
22h 17m
2 stops
ORD11:57 pmChicago O'Hare Intl
$1,809
Find similar
GOL
Aug 11
ORD9:40 amChicago O'Hare Intl
25h 20m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Aug 15
AEP3:40 amBuenos Aires Jorge Newbery
22h 17m
2 stops
ORD11:57 pmChicago O'Hare Intl
$1,835
Find similar

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
Sep 25
ORD5:31 pmChicago O'Hare Intl
21h 29m
2 stops
AEP5:00 pmBuenos Aires Jorge Newbery
Oct 6
AEP3:40 pmBuenos Aires Jorge Newbery
22h 36m
2 stops
ORD12:16 pmChicago O'Hare Intl
$929
Find similar
LATAM Airlines
Aug 11
ORD10:35 amChicago O'Hare Intl
25h 25m
2 stops
AEP2:00 pmBuenos Aires Jorge Newbery
Aug 19
AEP3:40 pmBuenos Aires Jorge Newbery
27h 57m
2 stops
ORD5:37 pmChicago O'Hare Intl
$1,105
Find similar
LATAM Airlines
Aug 8
ORD11:20 amChicago O'Hare Intl
22h 40m
2 stops
AEP12:00 pmBuenos Aires Jorge Newbery
Aug 20
AEP5:05 pmBuenos Aires Jorge Newbery
26h 32m
2 stops
ORD5:37 pmChicago O'Hare Intl
$1,130
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 August 2, 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

Wed 9/24

6:30 am-5:30 pm

3 stops33h 00m

Buenos Aires Jorge Newbery

Wed 10/15

9:50 am-9:18 am

3 stops25h 28m

$823

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 9/22

10:27 am-8:20 am

2 stops19h 53m

Buenos Aires Jorge Newbery

Mon 10/6

3:40 pm-10:48 pm

3 stops33h 08m

$844

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 9/15

10:27 am-8:20 am

2 stops19h 53m

Buenos Aires Jorge Newbery

Mon 9/22

9:00 am-9:58 pm

3 stops38h 58m

$846

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 9/11

6:30 am-2:20 am

3 stops41h 50m

Buenos Aires Jorge Newbery

Mon 9/22

9:00 am-9:58 pm

3 stops38h 58m

$847

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 9/13

5:05 am-4:40 am

2 stops21h 35m

Buenos Aires Jorge Newbery

Fri 9/19

12:05 am-9:58 pm

3 stops47h 53m

$852

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 8/30

5:05 am-9:30 am

3 stops26h 25m

Buenos Aires Jorge Newbery

Fri 9/5

12:05 am-6:50 pm

3 stops44h 45m

$857

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 10/13

10:23 am-8:20 am

2 stops19h 57m

Buenos Aires Jorge Newbery

Wed 10/22

10:55 am-9:58 pm

3 stops37h 03m

$861

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 8/25

6:56 am-11:20 am

3 stops26h 24m

Buenos Aires Jorge Newbery

Sat 8/30

1:40 pm-10:22 pm

3 stops34h 42m

$866

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sun 9/14

6:30 am-11:20 pm

3 stops38h 50m

Buenos Aires Jorge Newbery

Sat 9/20

12:05 am-9:58 pm

3 stops47h 53m

$867

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 9/25

5:31 pm-5:00 pm

2 stops21h 29m

Buenos Aires Jorge Newbery

Mon 10/6

3:40 pm-12:16 pm

2 stops22h 36m

$929

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

Best Price Found

$305

Fastest flight time

17h 13m

Direct flights

None
The best one-way flight to Buenos Aires Jorge Newbery Airport from Chicago O'Hare Intl Airport in the past 72 hours is $305. The best round-trip flight deal from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport found on momondo in the last 72 hours is $823.
The fastest flight from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport takes 17h 13m
There are no direct flights from Chicago O'Hare Intl Airport to Buenos Aires Jorge Newbery Airport. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - 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 19h 53m 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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