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Cheap flights from Chicago O'Hare Intl Airport to Buenos Aires from $313

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 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
8:20 am - 10:31 pmORD-EZE
35h 11m2 stops
Multiple Airlines Logo
7:30 am - 8:20 pmEZE-ORD
15h 50m1 stop
$766Multiple Airlines
Find Deal
Mon, Nov 24 - Tue, Dec 9
Arajet Logo
10:27 am - 3:45 amORD-EZE
14h 18m1 stop
Arajet Logo
8:40 am - 9:10 pmEZE-ORD
15h 30m1 stop
$768Arajet
Find Deal
Sat, Nov 15 - Sun, Nov 23
Arajet Logo
5:35 am - 12:05 amORD-EZE
16h 30m1 stop
Arajet Logo
8:50 am - 11:40 pmEZE-ORD
16h 50m1 stop
$778Arajet
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Wed, Apr 1 - Tue, Apr 7
Multiple Airlines Logo
5:00 am - 2:50 pmORD-EZE
30h 50m3 stops
Multiple Airlines Logo
4:55 pm - 6:36 pmEZE-ORD
28h 41m3 stops
$783Multiple Airlines
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Thu, Nov 27 - Thu, Dec 11
Multiple Airlines Logo
5:05 am - 4:06 amORD-EZE
21h 01m2 stops
Multiple Airlines Logo
1:40 am - 9:20 pmEZE-ORD
21h 40m1 stop
$785Multiple Airlines
Find Deal
Tue, Oct 28 - Thu, Oct 30
Multiple Airlines Logo
10:20 pm - 6:05 pmORD-EZE
16h 45m1 stop
Multiple Airlines Logo
4:55 pm - 11:13 pmEZE-ORD
33h 18m3 stops
$790Multiple Airlines
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Wed, Nov 12 - Wed, Nov 19
Avianca Logo
11:20 pm - 3:50 pmORD-EZE
14h 30m1 stop
Avianca Logo
1:40 am - 9:20 pmEZE-ORD
21h 40m1 stop
$805Avianca
Find Deal
Tue, Oct 28 - Thu, Oct 30
Avianca Logo
10:20 pm - 3:50 pmORD-EZE
14h 30m1 stop
Avianca Logo
1:40 am - 8:20 pmEZE-ORD
21h 40m1 stop
$818Avianca
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Mon, Nov 17 - Tue, Nov 25
Air Canada Logo
3:35 pm - 3:10 pmORD-EZE
20h 35m2 stops
Air Canada Logo
4:45 pm - 11:06 amEZE-ORD
21h 21m2 stops
$856Air Canada
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Tue, Feb 3 - Mon, Feb 23
Air Canada Logo
7:15 am - 2:30 pmORD-EZE
29h 15m2 stops
Air Canada Logo
4:35 pm - 2:52 pmEZE-ORD
24h 17m2 stops
$861Air Canada
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Sun, Mar 29 - Wed, Apr 8

Arajet flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

Our best Arajet deals on Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Arajet
Nov 15
ORD10:27 amChicago O'Hare Intl
14h 18m
1 stop
EZE3:45 amBuenos Aires Ministro Pistarini
Nov 23
EZE8:40 amBuenos Aires Ministro Pistarini
15h 30m
1 stop
ORD9:10 pmChicago O'Hare Intl
$768
Find similar
Arajet
Apr 1
ORD5:35 amChicago O'Hare Intl
16h 30m
1 stop
EZE12:05 amBuenos Aires Ministro Pistarini
Apr 7
EZE8:50 amBuenos Aires Ministro Pistarini
16h 50m
1 stop
ORD11:40 pmChicago O'Hare Intl
$778
Find similar
Arajet
Apr 1
ORD5:35 amChicago O'Hare Intl
16h 30m
1 stop
EZE12:05 amBuenos Aires Ministro Pistarini
May 1
EZE9:15 pmBuenos Aires Ministro Pistarini
14h 42m
1 stop
ORD9:57 amChicago O'Hare Intl
$792
Find similar

Avianca flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

Our best Avianca deals on Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Avianca
Oct 28
ORD11:20 pmChicago O'Hare Intl
14h 30m
1 stop
EZE3:50 pmBuenos Aires Ministro Pistarini
Oct 30
EZE1:40 amBuenos Aires Ministro Pistarini
21h 40m
1 stop
ORD9:20 pmChicago O'Hare Intl
$805
Find similar
Avianca
Nov 17
ORD10:20 pmChicago O'Hare Intl
14h 30m
1 stop
EZE3:50 pmBuenos Aires Ministro Pistarini
Nov 25
EZE1:40 amBuenos Aires Ministro Pistarini
21h 40m
1 stop
ORD8:20 pmChicago O'Hare Intl
$818
Find similar
Avianca
Nov 27
ORD10:20 pmChicago O'Hare Intl
14h 30m
1 stop
EZE3:50 pmBuenos Aires Ministro Pistarini
Dec 11
EZE7:30 amBuenos Aires Ministro Pistarini
15h 50m
1 stop
ORD8:20 pmChicago O'Hare Intl
$830
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini 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 October 16, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 11/24

8:20 am-10:31 pm

2 stops35h 11m

Buenos Aires Ministro Pistarini

Tue 12/9

7:30 am-8:20 pm

1 stop15h 50m

$766

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sat 11/15

10:27 am-3:45 am

1 stop14h 18m

Buenos Aires Ministro Pistarini

Sun 11/23

8:40 am-9:10 pm

1 stop15h 30m

$768

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 4/1

5:35 am-12:05 am

1 stop16h 30m

Buenos Aires Ministro Pistarini

Tue 4/7

8:50 am-11:40 pm

1 stop16h 50m

$778

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Thu 11/27

5:00 am-2:50 pm

3 stops30h 50m

Buenos Aires Ministro Pistarini

Thu 12/11

4:55 pm-6:36 pm

3 stops28h 41m

$783

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 10/28

5:05 am-4:06 am

2 stops21h 01m

Buenos Aires Ministro Pistarini

Thu 10/30

1:40 am-9:20 pm

1 stop21h 40m

$785

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 11/12

10:20 pm-6:05 pm

1 stop16h 45m

Buenos Aires Ministro Pistarini

Wed 11/19

4:55 pm-11:13 pm

3 stops33h 18m

$790

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 10/28

11:20 pm-3:50 pm

1 stop14h 30m

Buenos Aires Ministro Pistarini

Thu 10/30

1:40 am-9:20 pm

1 stop21h 40m

$805

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 11/17

10:20 pm-3:50 pm

1 stop14h 30m

Buenos Aires Ministro Pistarini

Tue 11/25

1:40 am-8:20 pm

1 stop21h 40m

$818

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 2/3

3:35 pm-3:10 pm

2 stops20h 35m

Buenos Aires Ministro Pistarini

Mon 2/23

4:45 pm-11:06 am

2 stops21h 21m

$856

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 3/29

7:15 am-2:30 pm

2 stops29h 15m

Buenos Aires Ministro Pistarini

Wed 4/8

4:35 pm-2:52 pm

2 stops24h 17m

$861

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 Ministro Pistarini 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 month to fly to Buenos Aires Ministro Pistarini Airport?

If you aren’t able to travel during the month of November, then book flights to Buenos Aires Ministro Pistarini Airport from Chicago O'Hare Intl Airport during October instead. Flights to Buenos Aires Ministro Pistarini Airport in October, while not as cheap as those in November, still average around $1,005.

What is the cheapest day to depart on your flight to Buenos Aires Ministro Pistarini Airport?

Our data shows that Sunday is the least expensive day to fly to Buenos Aires Ministro Pistarini Airport. Tickets to fly out on this day can be as low as $1,157. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires Ministro Pistarini Airport on Thursday is $1,291.

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

According to our data, the cheapest time of day to fly to Buenos Aires Ministro Pistarini Airport is in the evening. momondo users have found flights departing from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport in the evening for as low as $1,098. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,249 on average. Flights to Buenos Aires Ministro Pistarini Airport from Chicago O'Hare Intl Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Buenos Aires Ministro Pistarini Airport?

You are more likely to see cheaper flights to Buenos Aires Ministro Pistarini Airport from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires Ministro Pistarini Airport for around $1,144 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires Ministro Pistarini Airport from Chicago O'Hare Intl Airport for as low as $805 on momondo.

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

You could potentially save up to 21% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport flight.

When to book flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini 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 Ministro Pistarini 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 Ministro Pistarini Airport (ORD to EZE) 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 Ministro Pistarini Airport

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport. There are no popular flight routes from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport.
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  • How far is Chicago O'Hare Intl to Buenos Aires Ministro Pistarini by plane?

    Buenos Aires Ministro Pistarini is 5618.9 mi away from Chicago O'Hare Intl. Typically, this will take 14h 18m by plane in normal conditions.

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

    Prices for flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport.

  • What documentation or ID do you need to fly to Buenos Aires Ministro Pistarini Airport?

    The required travel and health documents for your Buenos Aires Ministro Pistarini Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires Ministro Pistarini Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

Best airlines flying from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $699Free CancellationRating
7.6
1,551 reviews
Search Copa Airlines flights
ArajetPriceFrom $736Free CancellationRating
7.1
36 reviews
Search Arajet flights
AviancaPriceFrom $750Free CancellationRating
6.6
2,452 reviews
Search Avianca flights
American AirlinesPriceFrom $1,015Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
DeltaPriceFrom $1,023Free CancellationRating
7.9
7,982 reviews
Search Delta flights
United AirlinesPriceFrom $1,060Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to Buenos Aires from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

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?

Once you have performed a search for Chicago to Buenos Aires flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Chicago to Buenos Aires now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Buenos Aires and let you know when they change.

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