$359 Find Cheap Flights from Buenos Aires to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buenos Aires to Illinois departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Book Cheap Buenos Aires to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buenos Aires to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buenos Aires to Illinois

Fri, Aug 28 - Thu, Sep 3
Multiple Airlines Logo
4:00 am - 5:52 am
EZE
-
ORD
27h 52m
3 stops
Multiple Airlines Logo
1:40 am - 9:16 am
ORD
-
EZE
29h 36m
3 stops
$883Multiple Airlines
Fri, Sep 11 - Mon, Oct 26
Arajet Logo
4:45 am - 11:12 am
EZE
-
ORD
32h 27m
1 stop
Arajet Logo
4:30 am - 12:05 am
ORD
-
EZE
17h 35m
1 stop
$906Arajet
Fri, Aug 21 - Sun, Sep 6
Delta Logo
1:10 pm - 10:10 am
EZE
-
MDW
23h 00m
2 stops
Delta Logo
4:39 pm - 9:45 am
MDW
-
EZE
15h 06m
1 stop
$983Delta
Tue, Sep 15 - Tue, Sep 22
Delta Logo
3:45 pm - 12:40 pm
AEP
-
ORD
22h 55m
2 stops
Delta Logo
1:50 pm - 2:50 pm
ORD
-
AEP
23h 00m
2 stops
$983Delta
Tue, Aug 18 - Wed, Aug 19
LATAM Airlines Logo
8:10 pm - 9:59 am
EZE
-
MDW
15h 49m
1 stop
LATAM Airlines Logo
12:46 pm - 9:45 am
MDW
-
EZE
18h 59m
1 stop
$986LATAM Airlines
Sun, Aug 16 - Sun, Aug 23
LATAM Airlines Logo
8:10 pm - 9:59 am
EZE
-
MDW
15h 49m
1 stop
LATAM Airlines Logo
12:46 pm - 9:45 am
MDW
-
EZE
18h 59m
1 stop
$992LATAM Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
9:00 pm - 7:16 pm
EZE
-
STL
24h 16m
2 stops
United Airlines Logo
5:30 pm - 8:00 am
STL
-
EZE
36h 30m
2 stops
$1,440United Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
9:00 pm - 2:15 pm
EZE
-
STL
19h 15m
1 stop
United Airlines Logo
6:54 pm - 8:00 am
STL
-
EZE
35h 06m
2 stops
$1,442United Airlines
Thu, Aug 27 - Mon, Aug 31
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
48h 20m
3 stops
$1,733Air Canada
Thu, Aug 27 - Mon, Aug 31
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
48h 20m
3 stops
$1,749Air Canada
Booking Insights

KAYAK's insights & trends for Buenos Aires to Illinois flights

Get data-powered insights and trends into flights from Buenos Aires to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Buenos Aires to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Buenos Aires to Illinois departing in August.

What is the cheapest month to fly from Buenos Aires to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buenos Aires to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Buenos Aires to Illinois is November, when tickets cost $217 (return) on average. On the other hand, the most expensive months are March and February, when the average cost of round-trip tickets is $837 and $766 respectively.

Good to know

Low seasonMarch
Cheapest flight$359
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Buenos Aires to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Buenos Aires to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buenos Aires to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buenos Aires to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Buenos Aires to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buenos Aires to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Buenos Aires to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buenos Aires to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Buenos Aires to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Buenos Aires to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Buenos Aires to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buenos Aires to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8473 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.8Entertainment
7.2Food
Airline reviews

It was as good as it could be. Flying is not a pleasant experience these days.

8.0 ExcellentMark, Jun 2026
LAX - ORD
Read more Delta reviews

It was as good as it could be. Flying is not a pleasant experience these days.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

Got on the plane and sat there for an hour before departure.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

Cramped seating for me. Luckily it wasn’t a long flight

5 hour delay. They blamed the weather but it was the computer issues they had been dealing with for days.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

long flights are never truly comfortable but the airline did their best. crew was great and the flight was safe.

The captain was amazing and kept us informed throughout that there would be some rough air. The flight also got delayed but we were able to actually leave on time, which was great.

stood in line to check in luggage for nearly an hour. very poor service and not excusable

Same as the previous flight as far as comfort and food. Entertainment didn’t have a watchable screen so everything would need to be watched on your own device in which they didn’t have a charging port that accommodated my iPhone. Seats were very uncomfortable. Staff was very friendly.

Do not book it’s a scam! They stole $1200 from me

Flight got delayed; had to go through security three times.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

I selected first class expecting excetional service. It was mediocre at best. The food service was cold, meal choices was poor and on one leg they did provide dessert. I did enjoy the lay day seat but the movies were old and nothing current. Boarding the plane is always hot. So boarding is quite warm until your in the air. I took a small personal air fan. Update the meals and movies.

It was reasonably comfortable trip considering its duration (7 hours). Crew was very good and friendly, seats very more comfortable than other planes. Only negative comment would be that the bathroom light did not get its full brightness 🙃

Great from check in all the way to the end. Very happy with Copa

I would like a glass of wine or some kind of alcoholic drink.

Very long delay but we just made the connection. The requested wheel chairs were not there so I had to assist/carry BOTH of my parents to the gate while carrying their bags so we could make the connection. The plane had no entertainment system and NO WIFI, legroom zero. Restrooms on ALL of flights were dirty and one restroom did not even work properly. I was surprised to see COPA like this since my flight with them in 2013 was incredible, the seats were amazing and the food options were spectacular. Of course, I see this kind of service on many airlines now, with services and hospitality at an all time low. The worse part of the trip was seeing my 90 year old parents go through hell on these flights and having to try and rush to a gate to make the next flight. Never again

I will never but. through kayak again. and American Airlines. I will never fly again on. They're both thieves.

Nothing, I wont be flying American Airlines again and will not be recommending anyone to fly American Airlines. It was the worst experience flying I've ever had.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

The planes can use an actual cleaning. The armrest and seats do not appear to be cleaned on this one and most other planes.

Flight was delayed…once landed at ORD, no gates were available so made us wait for 56 minutes after we landed to let us out of the aircraft!

Poor... food was horrible, boarding very slow, service on board mediocre

Crew was rude, almost 6 hour flight after horrific customs re entry line and near flight miss (unable to bug airport food) without food offerings.

The service could have been better and the food was bad

Muy puntual para la salida y la llegada, personal abordo correcto, la comida regular sobre todo el desayuno triste

This was a very good flight. The seats on the Dreamliner were comfortable and all the outlets were functional. The crew was friendly and helpful. Boarding was fairly efficient, although it was delayed by a baffling search of all the hand luggage for liquids. The timing of this flight, leaving at 10:30 PM, was excellent. It was a good time to arrive at DFW also, as there was almost no delay in going through customs and immigration. I'd fly this route, at this time, on this airline again without complaint.

Horrible experience with Avianca, they delayed their flight and when we arrived to NYC, AVIANCA took 1 hr y 30 mins to park the airplane and all passenger get off the plane, it made me lost all my trains to get back home and I came back to my place at 3 am instead of 12 am. On the top of that their plane seat are so uncomfortable and is not enough space and killed my legs and knees, Avianca used to be good when it was a Colombian company, now after Brasilian company bought them, their service quality is bad and their flights are delayed and oversold.

We found the chairs to be really uncomfortable. It’s also really unacceptable that no form of food or drink is included in a 6+ hour flight

We waited for one hour to deboard the plane after landing. That could be better

6 hour flight and have to pay for everything 100 dollars to add a carry-on bag is insane

Horrible experience. Flight cancelled. Arrived at destination 12 hs later. No one gave us an answer or any information. Very very poor service. We won’t ever travel again with Avianca

Very uncomfortable planes , poor service on the plane , take your own water so you don’t dehydrate , in a 6 hs flight they sold one time food and beverage . 1 plane was delayed 6 hs , I lost a connecting flight . Then in the way back they announce a delay of 2 hs so I had to take a different flight to arrive on time for my connecting flight . Avoid this airline .

Charging for WATER on a SIX hour flight in repugnant. Enough said!

Worst in 25 years. A 10 hours flight from Buenos Aires to Costa Rica and no free food! Then the food available for purchase was sold out in 5 minutes. I was travelling with two kids and wasn't ready to keep them happy with chips and cookies for such a long time. Avianca doesn't make sure that minors sit next to an adult so I was forced to pay 65 USD for each seat in a so called premium seat whic is exactly the same as the economy free seats. Never again with Avianca.

The flight was late olmost 3 hours , they send me to Cartagena … I suppose be in CR at 9 am , I fluid to Costa Rica at 5 pm …

GOL made the flight experience a true delight. Everything was smooth, from the check in process, to the disembarking moment.

Was charged for ticket, unable to check in online, made the line to speak to someone at the counter but was told I did not show up in the system as having a ticket to fly - even though I have the email with confirmation and credit card was charged. I could not purchase another ticket at the counter, only online which was not working. Ended up buying a flight on another airline at the airport. Called customer service to claim the cost of the original ticket, was told I showed up in their system as having a ticket but did not check-in or show up to board the flight. Currently pending review for refund via their customer service team, they were very nice and helpful over the phone despite the many glitches.

Do not book with this airline. Flights delayed over 3 hours and no explanation. They keep changing your itinerary every hour.

Awful. Not water, or chargers or space under the seats, the plane was very old and poor maintenance, seats really dirty, sticky, seats pockets with wires pinching your knees. Connection with no announcements, plane departed 1.30 hour earlier for an extra stop to refueling in Trinidad & Tobago. Even that we had a 3 hrs delay, seated in the plane in the runway.

Really bad. Uncommunicated stop in Trinidad & Tobago for refueling. Extra stop added 3 hours of discomfort without allowing off the seat. Not even water, or chargers or boarding groups.

Staff were unfriendly and rude. Was stuck on runway for 2 hours after arrival in Boston.

Horrible service. No communication from the crew as to why a 6 hour delay then cancellation

We waited in an overcrowded bus for over a half hour. It was uncomfortable. It would have been better to have waited in the terminal in a line

The food for sale on board has opportunity for improvement.

I paid extra for a comfortable seat in the second flight, but the plane didn't have those seats, the first one did

The Arajet person who greeted us initially was unhelpful & rude about the mandatory migration form which has to be completed digitally but the systems don’t work properly. The boarding gate was changed twice and initial boarding was delayed. Once on board we we had to wait an hour and a half before take off. It was hot and there was very little room for tall-ish people to fit their knees in. The crew were pleasant but working in a poor situation. The plane was delayed because we were waiting for people from a delayed interconnecting flight. Arajet must have known that before we were asked to board. Better information, decisions & communication were needed.

Everything you need to know for your flight from Buenos Aires to Illinois

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.