₹ 56,138 Find Cheap Flights from Chennai 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 Chennai to Illinois departing on 23/6. 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 Chennai 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 Chennai to Illinois, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 17% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chennai to Illinois

Cheapest return prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop₹ 88,555
St. Louis
St. Louis2 stops₹ 118,892
Chicago
Chicago1 stop₹ 88,555
St. Louis
St. Louis2 stops₹ 118,892

Book Cheap Chennai to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Chennai 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 return flight deals from Chennai to Illinois

Mon, 29 Jun - Mon, 7 Sep
Etihad Airways Logo
04:05 - 08:35
MAA
-
ORD
39h 00m
1 stop
Etihad Airways Logo
21:10 - 08:25
ORD
-
MAA
24h 45m
1 stop
₹ 88,555Etihad Airways
Mon, 29 Jun - Mon, 7 Sep
Etihad Airways Logo
04:05 - 08:35
MAA
-
ORD
39h 00m
1 stop
Etihad Airways Logo
21:10 - 08:25
ORD
-
MAA
24h 45m
1 stop
₹ 89,027Etihad Airways
Thu, 1 Oct - Fri, 23 Oct
Oman Air Logo
08:15 - 16:10
MAA
-
ORD
42h 25m
2 stops
Oman Air Logo
20:00 - 14:20
ORD
-
MAA
31h 50m
2 stops
₹ 90,067Oman Air
Fri, 23 Oct - Mon, 11 Jan
Air France Logo
20:15 - 15:10
MAA
-
ORD
29h 25m
2 stops
Air France Logo
17:20 - 08:25
ORD
-
MAA
27h 35m
2 stops
₹ 90,917Air France
Fri, 23 Oct - Mon, 11 Jan
Air France Logo
20:15 - 15:10
MAA
-
ORD
29h 25m
2 stops
Air France Logo
17:20 - 08:25
ORD
-
MAA
27h 35m
2 stops
₹ 91,012Air France
Tue, 7 Jul - Tue, 8 Sep
Multiple Airlines Logo
21:50 - 14:30
MAA
-
ORD
27h 10m
2 stops
Multiple Airlines Logo
17:10 - 08:15
ORD
-
MAA
28h 35m
2 stops
₹ 91,201Multiple Airlines
Fri, 23 Oct - Tue, 27 Oct
British Airways Logo
05:35 - 23:41
MAA
-
STL
28h 36m
2 stops
British Airways Logo
09:35 - 05:35
STL
-
MAA
57h 30m
2 stops
₹ 118,892British Airways
Fri, 23 Oct - Tue, 27 Oct
British Airways Logo
05:35 - 23:41
MAA
-
STL
28h 36m
2 stops
British Airways Logo
09:35 - 05:35
STL
-
MAA
57h 30m
2 stops
₹ 126,074British Airways
Wed, 29 Jul - Wed, 5 Aug
Lufthansa Logo
21:05 - 23:29
MAA
-
STL
36h 54m
3 stops
Lufthansa Logo
13:13 - 08:55
STL
-
MAA
33h 12m
3 stops
₹ 162,555Lufthansa
Tue, 28 Jul - Wed, 5 Aug
Lufthansa Logo
01:55 - 15:46
MAA
-
STL
24h 21m
2 stops
Lufthansa Logo
13:13 - 08:55
STL
-
MAA
33h 12m
3 stops
₹ 182,969Lufthansa
Booking Insights

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?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Chennai to Illinois departing in June.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chennai 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 Chennai to Illinois is April, when tickets cost ₹ 38,560 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of return tickets is ₹ 93,091 and ₹ 79,576 respectively.

How far in advance should I book a flight from Chennai 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 Chennai 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 a flight from Chennai to Illinois, you should book around 3 weeks before departure, which saves you about 43% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight₹ 56,138
Best time to beat the crowds but there is an average 27% increase in price.
Most popular time to fly and prices are also 3% 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 4 airlines flying from Chennai to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Chennai 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 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 3592 reviews
8.0Comfort
8.4Crew
8.2Entertainment
8.1Boarding
7.9Food
Airline reviews

Flight was cancelled without notification. Information on flight status was not available on Emirates's website.

4.0 OkayHem, Apr 2026
DXB - JFK
Read more Emirates reviews

Flight was cancelled without notification. Information on flight status was not available on Emirates's website.

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

The stewardess took a picture as a gift , if you asked for it. Every thing was very good, Especially the food, big and tasty. The service was good, they served water several times, very frequent.

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

Sadly I couldn't get the food I requested as it was out. Also, if you don't want to be woken up make sure the crew knows it. My wife was woken on every service.

Three meals on a single flight is disgusting. Even if I reject them all, sleeping is impossible and all that food (especially wasted food) is just antithetical to a pleasant flight experience. People were chucking multiple abandoned trays on the floor in front of my seat.

Similar to Hyd->Dubai this too was worst airlines. Bad seats, bad seating arrangement which created lot of confusion since family member were not given seat together. However most of them changed the seat and got with the family. Cheap tactics by Emirates.

The best ever, friendly and attentive cabin crew, amazing captains who utilised their expertise for less turbulence, just overall amazing

Overall I was quite pleased with the experience; the cleanliness; the polite and attentiveness of the cabin crew; and the delicious food options.

I would never have been able to make the transfer in time without asking for a wheelchair

Air hostesses were great. Food was good. Flat bed is not that flat or comfortable.

Seats were very comfortable and the staff too was very friendly.

Limit the number of usage of wine or please arrange our seats. The passenger was drunk on this flight and not on Thiruvananthapuram to Abudhabi.

Flight got canceled due to Middle East conflict. Just fly hasn’t refunded me the money

The seats seemed smaller than other business class offerings. The entertainment menu was limited. Flight crew was good.

It was excellent service in the snow storm gives us hotel and transportation. It will be more better if u can add one more meal because it’s a long flight boring journey. If you give extra meal time passes faster and can enjoy the trip better

Food quality and varites were very minimum. Surprised to have no desserts. Business class tickets should have lounge access and seats selection. They should be allowed to board while people with wheel chair, secial assistance and family with childrem.

Business class ticket should include lounge access and seat selection. The food quality and varieties should be more. It was surpirise that no dessert was offered.

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

It was great! Kept the time. Provided what was promised

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Everything could have been better. What needed to be wrong with United went wrong

It was good. The seats in economy weren’t bad

Very good. Comfortable and I felt well taken care of from start to finish

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

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

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

Thanks to a delay of an hour of my flight to Philadelphia on American Airlines I missed my connecting flight to Amsterdam. On arrival at Philadelphia he crew on the delayed flight did not ask the passengers to let connecting passengers get off first and I arrived a few minutes after boarding was closed at the original time for the flight to AMS, this despite the fact that I had received a message from American Airlines that departure was delayed by 25 minutes. Overall very poor service, no effort from the part of American Airlines to accommodate the passenger, just rebook the flight for the next day.

Seats not as comfortable as I had hoped. Food was very nice, service was fine. Entertainment options very nice. Had thought the premium economy was a more plus 2-3-2 layout but it was a 2-4-2 with seats not as wide as I had expected.

I liked my seats on the return trip. Didn't like having to pay for luggage on an international flight. Also didn't like that it was on American airlines and not British Airways. I specifically selected a BA flight to experience that airline.

I flew four flights on British Airways within two weeks. I was unable to download the boarding pass to my phone for any of the four flights. I could check-in for my flight but the system would not give me boarding pass. I tried multiple ways and multiple times. I discovered many other passengers also had the same issue with their boarding passes. No explanation or acknowledgement by BA.

Lovely big plane. Excellent take off and landing. Cabin crew were so nice. Flight in time no delays

Because our ABZ-LHR flight was cancelled by BA for reasons they refuse to tell us--not weather--we did not make this flight and were booked on the following day. BA offered no assistance to us on the phone or in the airport, and we had to find a hotel at Heathrow on our own.

Horrible - flight was delayed by 6 hours - we boarded, were made to de-board due some technical fault; aircraft changed; special meals request on new flight - all went awry. Landed in Dulles airport; breezed thru immigration; as Business Class passengers or baggage was delivered almost 90 minutes after landing; air tags indicated the bags were just near the carousel but the unhelpful BA staff - Maria and Ghina refused to give any update - palming it off on some imaginary invisible “manager” despite air tags evidence showing it right there. So about 50-60 passengers waiting and getting infuriatingly impatient for their bags coz one container was not delivered. Finally after much argument by some other passengers Maria condescended to go to the “ramp” and within 5 minutes the baggage was delivered miraculously. Question is why couldn’t she have done it one hour earlier ? Poor poor experience once again on Business Class BA.

Cheap Flight Fares would not provide booking info. I canceled the reservation and we arbitrated with American Express. They provided erroneous info to Amex and it was determined that C.F.F. deserved the price of the ticket. Worse experience I've ever had.

Seating space is appalling. Seats and all surrounding area in "Economy" is built for individuals shorter than 4' 10" and below 120 lbs. Ridiculous. While I'm not expecting fine dining, the food was the worst airplane food that I can recall.

My luggage was lost at the airport but American Airlines contacted me and got it to me the next day.

Everything you need to know for your flight from Chennai to Illinois

Information on your arrival and departure airports