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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $356

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 9/8. 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
1 adult, Economy, 0 bags

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
12:12 pm - 5:20 pm
ORD
-
AEP
27h 08m
2 stops
Multiple Airlines Logo
4:30 pm - 9:20 pm
AEP
-
ORD
30h 50m
2 stops
$926Multiple Airlines
Sat, Aug 22 - Fri, Sep 4
Multiple Airlines Logo
12:12 pm - 5:20 pm
ORD
-
AEP
27h 08m
2 stops
Multiple Airlines Logo
11:55 am - 9:20 pm
AEP
-
ORD
35h 25m
2 stops
$951Multiple Airlines
Sat, Aug 22 - Fri, Sep 4
Multiple Airlines Logo
1:40 am - 5:40 am
ORD
-
AEP
26h 00m
3 stops
Multiple Airlines Logo
3:45 pm - 11:47 pm
AEP
-
ORD
34h 02m
3 stops
$953Multiple Airlines
Tue, Sep 22 - Wed, Sep 30
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
$955Multiple Airlines
Wed, Sep 9 - Thu, Sep 17
Delta Logo
10:33 am - 7:40 am
ORD
-
AEP
19h 07m
2 stops
Delta Logo
8:05 pm - 4:51 pm
AEP
-
ORD
22h 46m
2 stops
$958Delta
Tue, Aug 18 - Tue, Sep 1
Multiple Airlines Logo
12:12 pm - 9:25 am
ORD
-
AEP
19h 13m
2 stops
Multiple Airlines Logo
12:55 pm - 9:20 pm
AEP
-
ORD
34h 25m
3 stops
$962Multiple Airlines
Sat, Aug 15 - Sun, Aug 30
Multiple Airlines Logo
5:30 am - 9:21 am
ORD
-
AEP
25h 51m
2 stops
Multiple Airlines Logo
12:50 pm - 9:20 pm
AEP
-
ORD
34h 30m
2 stops
$963Multiple Airlines
Mon, Aug 10 - Mon, Aug 17
Multiple Airlines Logo
12:12 pm - 10:30 am
ORD
-
AEP
20h 18m
2 stops
Multiple Airlines Logo
6:20 pm - 11:12 am
AEP
-
ORD
18h 52m
2 stops
$964Multiple Airlines
Sat, Aug 22 - Fri, Sep 4
Multiple Airlines Logo
1:59 am - 5:40 am
ORD
-
AEP
25h 41m
3 stops
Multiple Airlines Logo
4:20 pm - 9:20 pm
AEP
-
ORD
31h 00m
2 stops
$965Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
2:53 am - 5:40 am
ORD
-
AEP
24h 47m
3 stops
Multiple Airlines Logo
11:55 am - 9:20 pm
AEP
-
ORD
35h 25m
2 stops
$969Multiple Airlines
Sat, Aug 22 - Mon, Aug 31

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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
Aug 15
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Aug 28
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$990
Avianca
Aug 15
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Sep 2
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,011
Avianca
Jul 11
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Jul 26
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,241

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
Sep 27
ORD10:05 amChicago O'Hare Intl
24h 55m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Oct 4
AEP3:40 amBuenos Aires Jorge Newbery
19h 42m
2 stops
ORD9:22 pmChicago O'Hare Intl
$1,054
GOL
Sep 27
ORD10:05 amChicago O'Hare Intl
24h 55m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Oct 4
AEP3:40 amBuenos Aires Jorge Newbery
19h 50m
2 stops
ORD9:30 pmChicago O'Hare Intl
$1,056
GOL
Jul 7
ORD3:08 pmChicago O'Hare Intl
19h 52m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Jul 9
AEP3:40 amBuenos Aires Jorge Newbery
20h 21m
2 stops
ORD10:01 pmChicago O'Hare Intl
$1,514

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 June 29, 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

Sat 8/22

12:12 pm-5:20 pm

2 stops27h 08m

Buenos Aires Jorge Newbery

Fri 9/4

4:30 pm-9:20 pm

2 stops30h 50m

$926

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 8/22

12:12 pm-5:20 pm

2 stops27h 08m

Buenos Aires Jorge Newbery

Fri 9/4

11:55 am-9:20 pm

2 stops35h 25m

$951

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 9/22

1:40 am-5:40 am

3 stops26h 00m

Buenos Aires Jorge Newbery

Wed 9/30

3:45 pm-11:47 pm

3 stops34h 02m

$953

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 9/9

1:40 am-5:40 am

3 stops26h 00m

Buenos Aires Jorge Newbery

Thu 9/17

12:50 pm-9:20 pm

2 stops34h 30m

$955

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 8/18

10:33 am-7:40 am

2 stops19h 07m

Buenos Aires Jorge Newbery

Tue 9/1

8:05 pm-4:51 pm

2 stops22h 46m

$958

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 8/15

12:12 pm-9:25 am

2 stops19h 13m

Buenos Aires Jorge Newbery

Sun 8/30

12:55 pm-9:20 pm

3 stops34h 25m

$962

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 8/10

5:30 am-9:21 am

2 stops25h 51m

Buenos Aires Jorge Newbery

Mon 8/17

12:50 pm-9:20 pm

2 stops34h 30m

$963
Quickest round-trip

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 8/22

12:12 pm-10:30 am

2 stops20h 18m

Buenos Aires Jorge Newbery

Fri 9/4

6:20 pm-11:12 am

2 stops18h 52m

$964

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 8/24

1:59 am-5:40 am

3 stops25h 41m

Buenos Aires Jorge Newbery

Sun 8/30

4:20 pm-9:20 pm

2 stops31h 00m

$965

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 8/22

2:53 am-5:40 am

3 stops24h 47m

Buenos Aires Jorge Newbery

Mon 8/31

11:55 am-9:20 pm

2 stops35h 25m

$969

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

16h 50m

Direct flights

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

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 16h 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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