₹ 57,399 Find Cheap Flights from Chennai to Illinois – Compare and Save

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KAYAK's insights & trends for Chennai to Illinois flights

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

How much is a return flight from Chennai to Illinois?

Flight prices are typical for this route right now.

Flights to Illinois from Chennai usually cost between ₹ 89,734 and ₹ 107,432 in October.
The lowest price found in the past 5 days was ₹ 94,899 on Etihad Airways (23 Oct–11 Jan).

What is the cheapest month to fly from Chennai to Illinois?

The cheapest month for flights from Chennai to Illinois is April, when tickets cost ₹ 88,203 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of return tickets is ₹ 122,929 and ₹ 103,414 respectively.

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

To get a below-average price on a flight from Chennai to Illinois, you should book around 3 weeks before departure, which saves you about 59% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low season

September

Cheapest flight

₹ 57,399
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from Chennai to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Chennai 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 Chennai to Illinois.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Chennai 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 Chennai 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 Chennai 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 3 airlines flying from Chennai to Illinois

 
Need help choosing which airline to fly with from Chennai 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.
8.1
EmiratesOverall score based on 3662 reviews
8.1Boarding
8.4Crew
8.2Entertainment
7.9Food
8.0Comfort
Airline reviews

I love to travel again and again in Emirates. Keep up the good work.

10.0 ExcellentAnonymous, Apr 2026
Read more Emirates reviews

I love to travel again and again in Emirates. Keep up the good work.

I liked the newer aircraft CRJ-550 since it had WIFI and the seats are more spacious.

Flight was on time. Seats (economy) were very comfortable and food was excellent. The bad thing was that after landing it took an hour to reach arrivals. We had to wait 15mins to get off the plane and then had to board a bus which moved very slowly and took almost 30 minutes.

Some Crew were distinguishably fake in their interactions with passengers.

The flight experience was good, but connection time was cut shorted because of delayed start.. it would have been helpful if the flight showed which gate/terminal we need to go for connecting flight and flight timing was less than 30 minutes to connect which made ourselves stressful to catch next flight 😔

Better entertainment; the lack of it made the very long flight even longer

It was economy plus. That is all. I literally felt like traveling in economy class with a little extra leg room. Poor food. V restricted options. Worst of all POOR CREW ATTITUDE.

On the Dubai-Gatwick flight the only meal options were Beef or Chicken. No vegetarian option. This was a surprise. I would usually order in advance but did not this time. Would have been good to know that a vegetarian meal is not available as a standard meal. Thankfully it was just me travelling, but if I’d had my kids with me that would have been a big problem for us.

Newly reconfigured 380 I assume. Has a new ife with usb c ports and Bluetooth connections

Overall emirates continues to amaze me with their. Awesome service . I had shifted away from emirates , because I lost luggage and watch in emirates in 2019 that drifted me away from this airline , but I am willing to give it try

Good could be better. Crew is good but not great. Not much snack options for kids. Bathrooms were not cleaned on time

Crew from ground is great but the aircraft is small and last 3 rows luggage section was occupied by crew so no space for travelers. Food was OK

From Chennai to abu dabhi Abudabhi to Chicago Both flights are good , good service too

Good flight. There were a few issues with the flat bed. It was some technical issues. Otherwise everything was good

On this flight...fine. The one from India to Abu Dahbi, awful.

Horrible. After paying for seats, I was cramped, my daughters legs kept hitting the seat in front, I had no overhead bin space and no help from stewards on board, the food was served cold, when asked for snacks was told to wait and never received any, the flight was cold with no temperature controls. Entertainment was outdated. I booked this through partnership with American Airlines but will avoid in the future.

Etihad can improve the transfer in Abudabi gates instead of making people to climb the stairs.

Etihad checkin boarding and insight experience is one of a kind that i have never experienced in other fights. The flight crew was very kind and helpful when i traveled with my broken leg. Overall i rate the highest

Nothing was good. Everything needs to improve. Everything was abysmal. Needs lots of improvement. The check-in and baggage drop at the New Delhi airport was manned by disrespectful people, horrible experience. We will never travel by Etihad ever again.

The seat was not functional. Very uncomfortable to sit upright for that many hours😢. There was no legroom. Can’t move the legs or the body. We should have the option to pick our seats. There was no need to call customer support team and have them pick and we pay for the premium seats. When I called the CST regarding the seats, their response is gaslighting. Total disappointment. We have paid to be tortured by Etihad Airlines.

roomiest flight in economy I've taken in years. Excellent experience!

I was booked to travel from Dallas to Nairobi via Chicago and Brussels and had been issued boarding passes for all three segments of my journey. At the boarding gate in Dallas, I was required to check my carry-on luggage due to limited cabin space. Despite my attempts to explain that I was traveling internationally and would not have access to the bag during transit, my concerns were not considered. I also informed the staff that I did not have a padlock to secure the luggage, but this was disregarded. Consequently, I had to hastily transfer essential items from my carry-on into my handbag. To my surprise, upon arriving at Chicago Airport, I observed numerous international travelers boarding with cabin bags that were significantly larger than mine. This experience left me extremely disappointed and led me to decide against using United Airlines for future international travel, a sentiment I have also shared with friends and family. Unfortunately, the onboard experience on the Chicago to Brussels flight further reinforced my dissatisfaction. The cabin crew appeared disengaged, indifferent, and lacking in attentiveness, resulting in a service experience that fell well below my expectations.

I want to highlight the crew members and their excellent work and professionalism. They work hard to make a long trip the most comfortable as possible, the food and drinks they offer are pretty good. And they are always asking if you need something else. I have had experiences with other airlines where you have to basically beg for a bottle of water. This is not the case. Highly recommended!!!

the blanket was great and pillow helped. really need a toothpick packed with meals

My husband had a surgery sometime ago but had to stand for more than 2 hrs in the line just to check in, drop baggage and pay for excess. The staff is toooo slow leading to long ques. This made our journey very stressful to begin with. Had to literally run at the airport through the security check and to the gate in spite of reaching 3 hrs before the flight. it was almost time to board by the time we finished checking in our bags

Flight was cancelled due to maintenance issues. It was a nightmare to get an alternate flight back home.

Not enough veg food for passengers. I actually did not get veg food and starved the entire flight duration.

Very good experience. All of the details made this experience very positive.

Food options in Economy class can be improved. The headphones on the entertainment system only have a single earphone active, this can be improved.

Entertainment system have to be updated. Allied partners charging money for alcohol - in fact international flight.

More options for your flight from Chennai to Illinois

Complete your trip to Illinois with a hotel stay or car hire