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Cheap flights from Illinois to Buenos Aires from $331

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Buenos Aires departing on 3/10. 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 Illinois to Buenos Aires

Cheap round-trip flights

Avianca Logo
2:35 pm - 5:50 amORD-EZE
13h 15m1 stop
Avianca Logo
1:40 am - 8:20 pmEZE-ORD
21h 40m1 stop
$818Avianca
Find Deal
sáb., oct. 25 - mar., nov. 4
Multiple Airlines Logo
6:00 am - 12:50 pmORD-EZE
27h 50m2 stops
Multiple Airlines Logo
5:10 am - 7:16 pmEZE-ORD
41h 06m3 stops
$819Multiple Airlines
Find Deal
mar., nov. 4 - mar., nov. 11
Multiple Airlines Logo
10:20 pm - 12:35 amORD-EZE
23h 15m1 stop
Multiple Airlines Logo
2:40 am - 9:00 pmEZE-ORD
21h 20m2 stops
$829Multiple Airlines
Find Deal
mar., nov. 4 - lun., nov. 10
Multiple Airlines Logo
7:43 pm - 5:55 amORD-EZE
32h 12m3 stops
Multiple Airlines Logo
1:40 am - 1:15 pmEZE-ORD
13h 35m1 stop
$833Multiple Airlines
Find Deal
lun., oct. 13 - dom., oct. 19
Air Canada Logo
12:50 pm - 3:10 pmORD-EZE
24h 20m2 stops
Air Canada Logo
4:35 pm - 10:57 amEZE-ORD
20h 22m2 stops
$856Air Canada
Find Deal
vie., mar. 20 - lun., mar. 30
Air Canada Logo
12:50 pm - 3:10 pmORD-EZE
24h 20m2 stops
Air Canada Logo
4:35 pm - 10:57 amEZE-ORD
20h 22m2 stops
$861Air Canada
Find Deal
jue., mar. 19 - lun., mar. 30
Arajet Logo
5:45 am - 12:05 amORD-EZE
15h 20m1 stop
Arajet Logo
11:20 am - 10:40 pmEZE-ORD
14h 20m1 stop
$866Arajet
Find Deal
lun., nov. 24 - mar., dic. 2
Copa Airlines Logo
6:55 am - 12:58 amORD-EZE
15h 03m1 stop
Copa Airlines Logo
9:03 am - 12:05 amEZE-ORD
18h 02m1 stop
$876Copa Airlines
Find Deal
mar., dic. 9 - jue., dic. 18
LATAM Airlines Logo
12:48 pm - 2:30 amMDW-EZE
35h 42m2 stops
LATAM Airlines Logo
2:45 pm - 4:14 pmEZE-MDW
28h 29m2 stops
$936LATAM Airlines
Find Deal
jue., oct. 23 - mié., nov. 5
LATAM Airlines Logo
12:48 pm - 6:10 amMDW-EZE
39h 22m2 stops
LATAM Airlines Logo
2:45 pm - 4:14 pmEZE-MDW
28h 29m2 stops
$945LATAM Airlines
Find Deal
jue., oct. 23 - mié., nov. 5

Avianca flights from Illinois to Buenos Aires Ministro Pistarini Airport

Our best Avianca deals on Illinois to Buenos Aires Ministro Pistarini Airport flight tickets
Avianca
Oct 25
ORD2:35 pmChicago O'Hare Intl
13h 15m
1 stop
EZE5:50 amBuenos Aires Ministro Pistarini
Nov 4
EZE1:40 amBuenos Aires Ministro Pistarini
21h 40m
1 stop
ORD8:20 pmChicago O'Hare Intl
$818
Find similar
Avianca
Oct 24
ORD2:35 pmChicago O'Hare Intl
13h 10m
1 stop
EZE5:45 amBuenos Aires Ministro Pistarini
Nov 11
EZE7:35 amBuenos Aires Ministro Pistarini
15h 45m
1 stop
ORD8:20 pmChicago O'Hare Intl
$844
Find similar
Avianca
Oct 12
ORD2:35 pmChicago O'Hare Intl
13h 10m
1 stop
EZE5:45 amBuenos Aires Ministro Pistarini
Oct 18
EZE1:40 amBuenos Aires Ministro Pistarini
13h 35m
1 stop
ORD1:15 pmChicago O'Hare Intl
$860
Find similar

Copa Airlines flights from Illinois to Buenos Aires Ministro Pistarini Airport

Our best Copa Airlines deals on Illinois to Buenos Aires Ministro Pistarini Airport flight tickets
Copa Airlines
Dec 9
ORD6:55 amChicago O'Hare Intl
15h 03m
1 stop
EZE12:58 amBuenos Aires Ministro Pistarini
Dec 18
EZE9:03 amBuenos Aires Ministro Pistarini
18h 02m
1 stop
ORD12:05 amChicago O'Hare Intl
$876
Find similar
Copa Airlines
Oct 2
ORD7:59 amChicago O'Hare Intl
17h 59m
1 stop
EZE3:58 amBuenos Aires Ministro Pistarini
Oct 12
EZE5:08 amBuenos Aires Ministro Pistarini
21h 13m
1 stop
ORD12:21 amChicago O'Hare Intl
$921
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 septiembre 23, 2025.
Use the filters below to find and compare flights from Illinois 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

sáb. 10/25

2:35 pm-5:50 am

1 stop13h 15m

Buenos Aires Ministro Pistarini

mar. 11/4

1:40 am-8:20 pm

1 stop21h 40m

$818

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

mar. 11/4

6:00 am-12:50 pm

2 stops27h 50m

Buenos Aires Ministro Pistarini

mar. 11/11

5:10 am-7:16 pm

3 stops41h 06m

$819

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

mar. 11/4

10:20 pm-12:35 am

1 stop23h 15m

Buenos Aires Ministro Pistarini

lun. 11/10

2:40 am-9:00 pm

2 stops21h 20m

$829

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

lun. 10/13

7:43 pm-5:55 am

3 stops32h 12m

Buenos Aires Ministro Pistarini

dom. 10/19

1:40 am-1:15 pm

1 stop13h 35m

$833

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

vie. 3/20

12:50 pm-3:10 pm

2 stops24h 20m

Buenos Aires Ministro Pistarini

lun. 3/30

4:35 pm-10:57 am

2 stops20h 22m

$856

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

jue. 3/19

12:50 pm-3:10 pm

2 stops24h 20m

Buenos Aires Ministro Pistarini

lun. 3/30

4:35 pm-10:57 am

2 stops20h 22m

$861

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

lun. 11/24

5:45 am-12:05 am

1 stop15h 20m

Buenos Aires Ministro Pistarini

mar. 12/2

11:20 am-10:40 pm

1 stop14h 20m

$866

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

mar. 12/9

6:55 am-12:58 am

1 stop15h 03m

Buenos Aires Ministro Pistarini

jue. 12/18

9:03 am-12:05 am

1 stop18h 02m

$876

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

jue. 10/23

12:48 pm-2:30 am

2 stops35h 42m

Buenos Aires Ministro Pistarini

mié. 11/5

2:45 pm-4:14 pm

2 stops28h 29m

$936

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

jue. 10/23

12:48 pm-6:10 am

2 stops39h 22m

Buenos Aires Ministro Pistarini

mié. 11/5

2:45 pm-4:14 pm

2 stops28h 29m

$945

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 Illinois 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 September, then book flights to Buenos Aires Ministro Pistarini Airport from Illinois during June instead. Flights to Buenos Aires Ministro Pistarini Airport in June, while not as cheap as those in September, still average around $982.

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 Illinois 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 Illinois 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 Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires Ministro Pistarini Airport for around $1,166 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 Illinois for as low as $805 on momondo.

Can stopping save me money on Illinois to Buenos Aires Ministro Pistarini Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a Illinois to Buenos Aires Ministro Pistarini Airport flight.

Cheap Illinois to Buenos Aires Ministro Pistarini Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Buenos Aires Ministro Pistarini Airport

Direct flights

None
There are no direct flights from Illinois to Buenos Aires Ministro Pistarini Airport. There are no popular flight routes from Illinois to Buenos Aires Ministro Pistarini Airport.
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  • When did momondo last update prices for flights from Illinois to Buenos Aires Ministro Pistarini Airport?

    Prices for flights from Illinois to Buenos Aires Ministro Pistarini Airport were last updated today.

  • How many operators does momondo search for flights from Illinois to Buenos Aires Ministro Pistarini Airport?

  • How old do you have to be to fly from Illinois 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 Illinois to Buenos Aires Ministro Pistarini Airport.

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

    The travel and health documents you'll need for your trip to Buenos Aires Ministro Pistarini 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 Ministro Pistarini Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Buenos Aires Ministro Pistarini Airport

Compare and see reviews for airlines that fly from Illinois to Buenos Aires Ministro Pistarini Airport with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $699Free CancellationRating
7.6
1,536 reviews
Search Copa Airlines flights
ArajetPriceFrom $736Free CancellationRating
7.0
35 reviews
Search Arajet flights
AviancaPriceFrom $753Free CancellationRating
6.7
2,440 reviews
Search Avianca flights
American AirlinesPriceFrom $1,015Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $1,023Free CancellationRating
7.9
7,974 reviews
Search Delta flights
United AirlinesPriceFrom $1,093Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Buenos Aires. momondo saves you time and could save you money on your trip.

Can I find flights from Illinois to Buenos Aires with flexible booking policies on momondo?

momondo does allow users to show only those flights to Buenos Aires from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to Buenos Aires?

momondo helps you find the best flight between Illinois 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 Illinois to Buenos Aires right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois 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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