$334 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 3/7. 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

Mon, Apr 13 - Sat, May 2
Multiple Airlines Logo
6:00 am - 11:22 pm
EZE
-
ORD
19h 22m
2 stops
Multiple Airlines Logo
3:52 pm - 5:00 am
ORD
-
EZE
35h 08m
2 stops
$659Multiple Airlines
Sat, Apr 25 - Sat, May 9
Multiple Airlines Logo
6:35 am - 11:59 pm
EZE
-
ORD
19h 24m
2 stops
Multiple Airlines Logo
3:52 pm - 5:00 am
ORD
-
EZE
35h 08m
2 stops
$661Multiple Airlines
Mon, Apr 13 - Sat, May 2
Multiple Airlines Logo
6:00 am - 6:47 am
EZE
-
ORD
50h 47m
3 stops
Multiple Airlines Logo
3:52 pm - 5:00 am
ORD
-
EZE
35h 08m
2 stops
$662Multiple Airlines
Tue, Feb 17 - Mon, Feb 23
Delta Logo
8:55 pm - 9:54 am
EZE
-
MDW
15h 59m
1 stop
Delta Logo
10:49 am - 9:00 am
MDW
-
EZE
19h 11m
1 stop
$967Delta
Sat, Mar 7 - Tue, Mar 17
LATAM Airlines Logo
7:04 pm - 8:56 am
EZE
-
MDW
16h 52m
2 stops
LATAM Airlines Logo
10:45 am - 6:20 am
MDW
-
EZE
17h 35m
2 stops
$976LATAM Airlines
Sun, Mar 22 - Sun, Mar 29
LATAM Airlines Logo
12:00 pm - 9:56 am
EZE
-
MDW
23h 56m
2 stops
LATAM Airlines Logo
6:00 am - 9:45 am
MDW
-
EZE
25h 45m
1 stop
$1,011LATAM Airlines
Tue, Feb 17 - Mon, Feb 23
Delta Logo
10:25 pm - 5:37 pm
EZE
-
MDW
22h 12m
2 stops
Delta Logo
10:49 am - 10:15 am
MDW
-
EZE
20h 26m
2 stops
$1,052Delta
Thu, Feb 26 - Mon, May 25
American Airlines Logo
9:25 pm - 10:32 am
EZE
-
STL
16h 07m
1 stop
American Airlines Logo
9:40 am - 7:10 am
STL
-
EZE
19h 30m
1 stop
$1,127American Airlines
Thu, Feb 26 - Mon, May 25
American Airlines Logo
9:25 pm - 1:43 pm
EZE
-
STL
19h 18m
2 stops
American Airlines Logo
8:15 am - 7:10 am
STL
-
EZE
20h 55m
1 stop
$1,131American Airlines
Thu, Feb 26 - Mon, May 25
United Airlines Logo
11:55 pm - 4:02 pm
EZE
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STL
19h 07m
2 stops
United Airlines Logo
10:23 am - 8:00 am
STL
-
EZE
19h 37m
2 stops
$1,257United Airlines
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 February, when tickets cost $975 (return) on average. On the other hand, the most expensive months are July and March, when the average cost of round-trip tickets is $1,335 and $1,246 respectively.

Good to know

Low seasonFebruary
Cheapest flight$334
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 11% 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 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 8164 reviews
8.1Boarding
7.8Entertainment
8.5Crew
7.2Food
7.9Comfort
Airline reviews

The flight was great as well as the airline staff

10.0 ExcellentPatty, Feb 2026
TPA - ATL
Read more Delta reviews

The flight was great as well as the airline staff

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

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

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

A lot things happened in this trip.The fly should be less stress.

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.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

Flight from CHI to PVD was delayed by over 20 hours.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

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.

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

Deplaning was a mess, I sat in business (seats are horrible) and the front door had a problem so we had to deplane from the rear exit. The stairs were not tall enough to reach so there was a large step down from the plane to the top of the stairs.

Staff are the rudest in the industry … awful customer service … will never fly Avianca again

Pros: we leave and arrive on time Cons: the most uncomfortable seats ever. You cant recline at all your seats. No entertainment No TVs flight attendants didn't provide even a glass of water. You have to go to back of the airplane and ask for one. I am Colombian and I remember seeing the flight attendants very neat, elegants which is or was a staple of Avianca.it was one with tennis shoes, no male up, the hair was messy... that was really odd.

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

I handed in my suitcase in perfect condition at SAL Airport. And in MIA Airport I received it with one corner broken and the wheels bent.

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

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.