$383 Find Cheap Flights from Buenos Aires to Illinois

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 2/20. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buenos Aires to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buenos Aires to Illinois, as well as popular online travel agencies
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Flight Deals

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

Tue, Apr 28 - Wed, May 6
Arajet Logo
11:00 am - 11:40 pm
EZE
-
ORD
14h 40m1 stop
Arajet Logo
5:35 am - 12:05 am
ORD
-
EZE
16h 30m1 stop
$670Arajet
Sun, Apr 19 - Sat, Apr 25
Arajet Logo
8:40 am - 10:10 pm
EZE
-
ORD
15h 30m1 stop
Arajet Logo
11:27 am - 3:45 am
ORD
-
EZE
14h 18m1 stop
$730Arajet
Sun, Apr 19 - Mon, Apr 27
Arajet Logo
8:40 am - 10:10 pm
EZE
-
ORD
15h 30m1 stop
Arajet Logo
4:30 am - 12:05 am
ORD
-
EZE
17h 35m1 stop
$746Arajet
Mon, Apr 27 - Wed, May 6
Multiple Airlines Logo
2:25 am - 11:40 pm
EZE
-
ORD
23h 15m2 stops
Multiple Airlines Logo
5:35 am - 12:05 am
ORD
-
EZE
16h 30m1 stop
$765Multiple Airlines
Thu, Mar 19 - Mon, Mar 30
Multiple Airlines Logo
12:54 pm - 9:20 pm
EZE
-
ORD
34h 26m2 stops
Multiple Airlines Logo
4:30 am - 12:05 am
ORD
-
EZE
17h 35m1 stop
$774Multiple Airlines
Tue, Dec 9 - Thu, Dec 11
Avianca Logo
7:00 am - 8:20 pm
AEP
-
ORD
16h 20m1 stop
Avianca Logo
8:45 am - 5:40 am
ORD
-
AEP
17h 55m2 stops
$849Avianca
Mon, Apr 6 - Wed, Jun 10
American Airlines Logo
11:30 pm - 9:35 pm
EZE
-
STL
24h 05m1 stop
American Airlines Logo
7:25 am - 7:15 am
STL
-
EZE
21h 50m1 stop
$926American Airlines
Wed, Apr 1 - Tue, Jun 9
American Airlines Logo
11:30 pm - 9:51 pm
EZE
-
STL
24h 21m1 stop
American Airlines Logo
12:09 pm - 9:00 am
STL
-
EZE
18h 51m2 stops
$930American Airlines
Wed, Apr 15 - Mon, Apr 27
Delta Logo
8:10 pm - 12:30 pm
EZE
-
MDW
18h 20m2 stops
Delta Logo
5:25 pm - 9:45 am
MDW
-
EZE
14h 20m1 stop
$1,055Delta
Sun, Dec 21 - Tue, Jan 6
Delta Logo
8:55 pm - 9:05 am
EZE
-
MDW
15h 10m1 stop
Delta Logo
9:32 am - 7:20 am
MDW
-
EZE
18h 48m2 stops
$1,216Delta
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.

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 $997 (return) on average. On the other hand, the most expensive months are July and March, when the average cost of round-trip tickets is $1,473 and $1,283 respectively.

What’s the cheapest day of the week to fly from Buenos Aires to Illinois?

The average price of all round-trip flights from Buenos Aires to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Buenos Aires to Illinois. For your return ticket, we recommend flying on a Friday and avoiding Thursdays for the best deals.

How far in advance should I book a flight from Buenos Aires to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.

To get a below average price on the flight from Buenos Aires to Illinois, you should book around 3 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$383
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 12% 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.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $1,178 on average. Morning departures are around 20% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,471.

Reviews of the top 4 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.
7.9
DeltaOverall score based on 8011 reviews
8.1Boarding
7.3Food
8.5Crew
7.9Entertainment
7.9Comfort
Airline reviews

For some reason, I couldn't choose my seat. The airline gave me a seat when I got there. Not happy about that. Otherwise, everything else was great!

10.0 ExcellentKaren, Dec 2025
BCN - JFK
Read more Delta reviews

For some reason, I couldn't choose my seat. The airline gave me a seat when I got there. Not happy about that. Otherwise, everything else was great!

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

One of the best airlines that I flew on, the flight attendants were very attentive and professional.

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

Some of the Air hostesses are not that friendly. Need improvement

Cops Airlines is fantastic! The level of care and professionalism provided by the entire crew was top rate.

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

horrible service, food was an embarrassment, no charging for cellphones, stay away

the food served was an embarrassment. No connection for charging the cellphone... What a crappy airline.

Great experience with a crew always thinking in the passenger

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.

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

Seats not reclining, no vegetarian food option, no snacks. 7.5 hr flight should have been more comfortable. Luggage limits are unusually small. Will never fly Copa again and will tell friends and family to avoid this airline.

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Flight, food and crew were all good, friendly and very satisfactory.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Premium economy seat was decent. As always poor headphones, poor food and beverage, crew is not overly friendly

Excellent - explanations were clear staff was nice and flight was comfortable

Lost bag and 2 days no word leaving for cruise no clothes or stuff

I like the crew members they're very friendly. Clean plane. The flight was on time. I dont like the comfort my car seat its better that the plane seats. They charge for everything. This airline was very good. Now it's a low cost airline

No free snacks nor drinks on very short 30min flight. Entertainment system is over wifi to your own phone or tablet, which is good but often a show or movie just stops and refuses to continue

I like the crew they're very friendly. I don't like. on five hour flight they not offered snacks. Any drink. Not even coffee

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

Usb plugs for charging your phone does not work in every flight. uncomfortable chairs even in higher categories.

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

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 .

The check in is the only positive thing in Avianca. The seat is the most uncomfortable I have traveled, the distance is minimal.

Not what it used to be. The sale of food makes them look greedy!

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.