What is the cheapest airline that flies from Chennai to Illinois?

Etihad Airways, Oman Air, and KLM are the most popular carriers operating from Chennai to Illinois

When did momondo last update prices for flights from Chennai Airport to Illinois?

Prices for flights from Chennai Airport to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Chennai Airport to Illinois?

As of September 2026, there are 2 operators available to choose from for flights from Chennai Airport to Illinois.

How old do you have to be to fly from Chennai Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chennai Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

₹ 56,575 Cheap Flights from Chennai to Illinois in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chennai to Illinois

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:15 - 19:03MAA Chennai-ORD Chicago O'Hare Intl

43h 18m2 stops Abu Dhabi Zayed Intl Boston Logan Intl

11:00 - 19:50ORD Chicago O'Hare Intl-MAA Chennai

21h 20m2 stops Boston Logan Intl Abu Dhabi Zayed Intl

₹ 89,889Etihad Airways

Tue, 6 Oct - Tue, 24 Nov

04:05 - 15:40MAA Chennai-ORD Chicago O'Hare Intl

22h 05m1 stop Abu Dhabi Zayed Intl

13:10 - 02:35ORD Chicago O'Hare Intl-MAA Chennai

25h 55m1 stop Abu Dhabi Zayed Intl

₹ 90,272Etihad Airways

Sat, 24 Oct - Sun, 8 Nov

21:55 - 19:03MAA Chennai-ORD Chicago O'Hare Intl

31h 38m2 stops Abu Dhabi Zayed Intl Boston Logan Intl

13:10 - 19:50ORD Chicago O'Hare Intl-MAA Chennai

19h 10m1 stop Abu Dhabi Zayed Intl

₹ 90,272Etihad Airways

Tue, 6 Oct - Sat, 6 Feb

04:05 - 15:40MAA Chennai-ORD Chicago O'Hare Intl

22h 05m1 stop Abu Dhabi Zayed Intl

13:10 - 08:05ORD Chicago O'Hare Intl-MAA Chennai

31h 25m1 stop Abu Dhabi Zayed Intl

₹ 90,368Etihad Airways

Wed, 21 Oct - Mon, 2 Nov

16:30 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

26h 35m2 stops Bengaluru Intl Abu Dhabi Zayed Intl

14:00 - 20:10ORD Chicago O'Hare Intl-MAA Chennai

19h 40m1 stop Abu Dhabi Zayed Intl

₹ 90,559Multiple Airlines

Sun, 18 Oct - Thu, 22 Oct

21:25 - 15:40MAA Chennai-ORD Chicago O'Hare Intl

28h 45m2 stops Bengaluru Intl Abu Dhabi Zayed Intl

13:10 - 19:50ORD Chicago O'Hare Intl-MAA Chennai

19h 10m1 stop Abu Dhabi Zayed Intl

₹ 90,942Multiple Airlines

Mon, 5 Oct - Sun, 8 Nov

21:25 - 15:40MAA Chennai-ORD Chicago O'Hare Intl

28h 45m2 stops Bengaluru Intl Abu Dhabi Zayed Intl

13:10 - 19:50ORD Chicago O'Hare Intl-MAA Chennai

19h 10m1 stop Abu Dhabi Zayed Intl

₹ 90,942Multiple Airlines

Mon, 5 Oct - Sat, 7 Nov

04:05 - 16:00MAA Chennai-ORD Chicago O'Hare Intl

22h 25m1 stop Dubai Intl

20:45 - 20:10ORD Chicago O'Hare Intl-MAA Chennai

36h 55m1 stop Dubai Intl

₹ 97,069Emirates

Thu, 8 Oct - Thu, 29 Oct

22:05 - 16:00MAA Chennai-ORD Chicago O'Hare Intl

28h 25m1 stop Dubai Intl

20:45 - 20:10ORD Chicago O'Hare Intl-MAA Chennai

36h 55m1 stop Dubai Intl

₹ 97,069Emirates

Thu, 8 Oct - Thu, 29 Oct

04:05 - 16:00MAA Chennai-ORD Chicago O'Hare Intl

22h 25m1 stop Dubai Intl

19:45 - 02:15ORD Chicago O'Hare Intl-MAA Chennai

19h 00m1 stop Dubai Intl

₹ 97,643Emirates

Wed, 14 Oct - Mon, 18 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

04:15 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

38h 50m1 stop Abu Dhabi Zayed Intl

13:10 - 19:50ORD Chicago O'Hare Intl-MAA Chennai

19h 10m1 stop Abu Dhabi Zayed Intl

₹ 93,909Etihad Airways

Mon, 28 Sep - Wed, 2 Dec

04:15 - 15:40MAA Chennai-ORD Chicago O'Hare Intl

21h 55m1 stop Abu Dhabi Zayed Intl

13:10 - 08:05ORD Chicago O'Hare Intl-MAA Chennai

31h 25m1 stop Abu Dhabi Zayed Intl

₹ 93,909Etihad Airways

Tue, 29 Sep - Wed, 2 Dec

04:15 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

38h 50m1 stop Abu Dhabi Zayed Intl

13:10 - 08:05ORD Chicago O'Hare Intl-MAA Chennai

31h 25m1 stop Abu Dhabi Zayed Intl

₹ 94,005Etihad Airways

Tue, 29 Sep - Thu, 3 Dec

10:15 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

40h 10m1 stop Abu Dhabi Zayed Intl

13:10 - 08:05ORD Chicago O'Hare Intl-MAA Chennai

31h 25m1 stop Abu Dhabi Zayed Intl

₹ 94,005Etihad Airways

Tue, 29 Sep - Tue, 12 Jan

04:15 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

38h 50m1 stop Abu Dhabi Zayed Intl

18:17 - 05:35ORD Chicago O'Hare Intl-MAA Chennai

23h 48m2 stops Toronto Pearson Intl London Heathrow

₹ 100,993Multiple Airlines

Tue, 29 Sep - Mon, 4 Jan

04:15 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

38h 50m1 stop Abu Dhabi Zayed Intl

21:50 - 23:50ORD Chicago O'Hare Intl-MAA Chennai

62h 30m2 stops Munich Franz Josef Strauss Mumbai Chhatrapati Shivaji Intl

₹ 102,812Multiple Airlines

Sat, 26 Sep - Sat, 14 Nov

00:50 - 05:00MAA Chennai-ORD Chicago O'Hare Intl

38h 40m2 stops Hong Kong Intl Los Angeles

05:30 - 00:35ORD Chicago O'Hare Intl-MAA Chennai

31h 35m2 stops Los Angeles Hong Kong Intl

₹ 102,908Cathay Pacific

Mon, 28 Sep - Wed, 2 Dec

04:05 - 11:21MAA Chennai-ORD Chicago O'Hare Intl

41h 46m2 stops Dubai Intl Montreal Pierre Elliott Trudeau Intl

17:30 - 20:10ORD Chicago O'Hare Intl-MAA Chennai

39h 10m3 stops Newark Athens Eleftherios V. Dubai Intl

₹ 560,489Emirates

Sat, 26 Sep - Sun, 10 Jan

04:05 - 11:21MAA Chennai-ORD Chicago O'Hare Intl

41h 46m2 stops Dubai Intl Montreal Pierre Elliott Trudeau Intl

17:30 - 20:10ORD Chicago O'Hare Intl-MAA Chennai

39h 10m3 stops Newark Athens Eleftherios V. Dubai Intl

₹ 561,064Emirates

Sat, 26 Sep - Sun, 10 Jan

22:05 - 16:34MAA Chennai-ORD Chicago O'Hare Intl

52h 59m3 stops Dubai Intl Athens Eleftherios V. Newark

17:30 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

27h 15m3 stops Newark Athens Eleftherios V. Dubai Intl

₹ 561,159Emirates

Sat, 26 Sep - Sun, 10 Jan

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Emirates flights from Chennai to Illinois

Our best Emirates deals on Chennai to Illinois flight tickets

Emirates

8 Oct

MAA04:05Chennai

22h 25m

1 stop

ORD16:00Chicago O'Hare Intl

29 Oct

ORD20:45Chicago O'Hare Intl

36h 55m

1 stop

MAA20:10Chennai

₹ 97,069

Emirates

6 Oct

MAA04:05Chennai

22h 25m

1 stop

ORD16:00Chicago O'Hare Intl

29 Oct

ORD20:45Chicago O'Hare Intl

25h 00m

1 stop

MAA08:15Chennai

₹ 99,845

Oman Air flights from Chennai to Illinois

Our best Oman Air deals on Chennai to Illinois flight tickets

Oman Air

8 Oct

MAA08:15Chennai

42h 25m

2 stops

ORD16:10Chicago O'Hare Intl

23 Nov

ORD18:50Chicago O'Hare Intl

48h 20m

2 stops

MAA06:40Chennai

₹ 91,708

Oman Air

1 Dec

MAA07:20Chennai

43h 15m

2 stops

ORD15:05Chicago O'Hare Intl

8 Jan

ORD18:50Chicago O'Hare Intl

48h 20m

2 stops

MAA06:40Chennai

₹ 92,378

Oman Air

6 Nov

MAA07:20Chennai

43h 15m

2 stops

ORD15:05Chicago O'Hare Intl

13 Nov

ORD18:50Chicago O'Hare Intl

32h 00m

2 stops

MAA14:20Chennai

₹ 92,665

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Tue 6/10

10:15-19:03

2 stops43h 18m

Chicago O'Hare Intl

Tue 24/11

11:00-19:50

2 stops21h 20m

₹ 89,889

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sat 24/10

04:05-15:40

1 stop22h 05m

Chicago O'Hare Intl

Sun 8/11

13:10-02:35

1 stop25h 55m

₹ 90,272

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Tue 6/10

21:55-19:03

2 stops31h 38m

Chicago O'Hare Intl

Sat 6/2

13:10-19:50

1 stop19h 10m

₹ 90,272

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Wed 21/10

04:05-15:40

1 stop22h 05m

Chicago O'Hare Intl

Mon 2/11

13:10-08:05

1 stop31h 25m

₹ 90,368

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sun 18/10

16:30-08:35

2 stops26h 35m

Chicago O'Hare Intl

Thu 22/10

14:00-20:10

1 stop19h 40m

₹ 90,559

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Mon 5/10

21:25-15:40

2 stops28h 45m

Chicago O'Hare Intl

Sun 8/11

13:10-19:50

1 stop19h 10m

₹ 90,942

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Mon 5/10

21:25-15:40

2 stops28h 45m

Chicago O'Hare Intl

Sat 7/11

13:10-19:50

1 stop19h 10m

₹ 90,942

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Thu 8/10

04:05-16:00

1 stop22h 25m

Chicago O'Hare Intl

Thu 29/10

20:45-20:10

1 stop36h 55m

₹ 97,069

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Thu 8/10

22:05-16:00

1 stop28h 25m

Chicago O'Hare Intl

Thu 29/10

20:45-20:10

1 stop36h 55m

₹ 97,069

Fastest return journey

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Wed 14/10

04:05-16:00

1 stop22h 25m

Chicago O'Hare Intl

Mon 18/1

19:45-02:15

1 stop19h 00m

₹ 97,643

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chennai to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Illinois?

In general, April is the cheapest month to fly from Chennai to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 88,262. If you aren’t able to travel during the month of April, then book flights to Illinois from Chennai during March instead. Flights to Illinois in March, while not as cheap as those in April, still average around ₹ 89,506.

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

You are more likely to see cheaper flights to Illinois from Chennai when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around ₹ 96,534 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Chennai for as low as ₹ 83,954 on momondo.

Cheap Chennai to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chennai to Illinois

Best price found	₹ 56,575
Fastest flight time	21h 10m
Direct flights	None

The best one-way flight to Illinois from Chennai in the past 72 hours is ₹ 56,575. The best return flight deal from Chennai to Illinois found on momondo in the last 72 hours is ₹ 89,889.

The fastest flight from Chennai to Illinois takes 21h 10m

There are no direct flights from Chennai to Illinois. There are no popular flight routes from Chennai to Illinois.

Search flight deals

Frequently asked questions about flying from Chennai to Illinois

When did momondo last update prices for flights from Chennai Airport to Illinois?
Prices for flights from Chennai Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Chennai Airport to Illinois?
As of September 2026, there are 2 operators available to choose from for flights from Chennai Airport to Illinois.
How old do you have to be to fly from Chennai Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chennai Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Chennai to Illinois

Compare and see reviews for airlines that fly from Chennai to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Etihad Airways	PriceFrom ₹ 74,137	Free Cancellation	Rating 7.3 1,533 reviews		Search Etihad Airways flights
Emirates	PriceFrom ₹ 93,115	Free Cancellation	Rating 8.1 3,664 reviews		Search Emirates flights

Why use momondo?

Why should I use momondo to find a flight deal from Chennai to Illinois?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Chennai.

Can I find flights from Chennai to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Chennai with this policy.

How can momondo help me find flights from Chennai to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Chennai.

I’m not ready to book a flight from Chennai to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Chennai are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.