₹ 60,864 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 26/8. 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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Cheap Flights from Chennai to Illinois

Cheapest return prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago2 stops₹ 97,115
St. Louis
St. Louis2 stops₹ 97,210
Chicago
Chicago2 stops₹ 97,115
St. Louis
St. Louis2 stops₹ 97,210

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

Sun, 27 Sep - Wed, 2 Dec
Oman Air Logo
15:30 - 16:10
MAA
-
ORD
59h 10m
2 stops
Oman Air Logo
18:50 - 14:20
ORD
-
MAA
32h 00m
2 stops
₹ 97,115Oman Air
Mon, 28 Sep - Fri, 27 Nov
Oman Air Logo
08:15 - 16:10
MAA
-
ORD
42h 25m
2 stops
Oman Air Logo
18:50 - 06:40
ORD
-
MAA
48h 20m
2 stops
₹ 97,115Oman Air
Mon, 28 Sep - Wed, 2 Dec
Oman Air Logo
08:15 - 16:10
MAA
-
ORD
42h 25m
2 stops
Oman Air Logo
18:50 - 14:20
ORD
-
MAA
32h 00m
2 stops
₹ 97,115Oman Air
Sun, 13 Sep - Sun, 20 Sep
Emirates Logo
22:05 - 15:45
MAA
-
ORD
28h 10m
1 stop
Emirates Logo
20:35 - 02:30
ORD
-
MAA
19h 25m
1 stop
₹ 97,687Emirates
Thu, 8 Oct - Sun, 11 Oct
Emirates Logo
09:50 - 15:45
MAA
-
ORD
40h 25m
1 stop
Emirates Logo
20:35 - 20:30
ORD
-
MAA
37h 25m
1 stop
₹ 97,782Emirates
Fri, 11 Dec - Sun, 10 Jan
British Airways Logo
07:35 - 12:21
MAA
-
ORD
40h 16m
2 stops
British Airways Logo
21:50 - 05:35
ORD
-
MAA
20h 15m
1 stop
₹ 97,782British Airways
Sat, 26 Sep - Sun, 29 Nov
Etihad Airways Logo
10:15 - 08:35
MAA
-
ORD
32h 50m
1 stop
Etihad Airways Logo
13:10 - 02:35
ORD
-
MAA
25h 55m
1 stop
₹ 97,878Etihad Airways
Sat, 26 Sep - Sun, 6 Dec
Etihad Airways Logo
16:05 - 08:35
MAA
-
ORD
27h 00m
1 stop
Etihad Airways Logo
13:10 - 08:05
ORD
-
MAA
31h 25m
1 stop
₹ 97,878Etihad Airways
Thu, 1 Oct - Wed, 9 Dec
Emirates Logo
22:05 - 15:45
MAA
-
ORD
28h 10m
1 stop
Emirates Logo
19:45 - 02:15
ORD
-
MAA
19h 00m
1 stop
₹ 98,164Emirates
Tue, 6 Oct - Sat, 6 Feb
British Airways Logo
05:35 - 05:00
MAA
-
ORD
33h 55m
2 stops
British Airways Logo
16:26 - 05:35
ORD
-
MAA
25h 39m
2 stops
₹ 102,838British Airways
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 September.

Flight prices are below average for this route right now.

Flights to Illinois from Chennai usually cost between ₹ 114,477 and ₹ 157,406 in September.
The lowest price found in the past 5 days was ₹ 97,115 on Oman Air (26 Sept–4 Dec).

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 ₹ 87,384 (return) on average. On the other hand, the most expensive months are August and January, when the average cost of return tickets is ₹ 122,109 and ₹ 115,526 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 61% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low season

January

Cheapest flight

₹ 60,864
Best time to beat the crowds but there is an average 28% 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 3638 reviews
8.0Comfort
7.9Food
8.1Boarding
8.2Entertainment
8.4Crew
Airline reviews

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

10.0 ExcellentAnonymous, Apr 2026
MSP - ORD
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

The crew were really bad mannered! And spoiled all my mood throughout the flight!

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

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.

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.

Very comfortable plane. The food was very good (for airplane food). The crew was great

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

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

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.

I will never want to book with these people. They are arrogant and rude. Food was really really bad, crew was even worst

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

BA flight from London NY had old BC configuration with 2+3+2 seating with open seats which was not comfortable and lacked privacy

Check-in experience, for business call please provide a premium experience

Poor check in rude attitude by a lady staff being we both of us are senior citizen and diabetic we have asked for seats in centre particularly not Window seat but she allotted Window seat such a rude and inhuman behaviours Really we are very sorry

everything on the flight was a great experience except the food could have been better!

Everything could be better. Really poor airline service. No communication. Overall rude staff.

If you want the worst airlines and worst staff - British airways. They only know how to loot - as they always have throughout their lifetime of ruling countries etc.

There was water leaking from the bathroom in the carpet outside the bathroom in the BA flight from Chennai to London and the foot rest was breaking down

Please compare against emirates, ethiad or Qatar airways. You will know why I gave this rating

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

Information on your arrival and departure airports