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

American Airlines, SWISS, and Etihad Airways 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 August 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.

₹ 52,299 Cheap Flights from Chennai to Illinois in 2026

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.

21:55 - 00:27MAA Chennai-STL Lambert-St Louis

37h 02m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl

08:54 - 20:10STL Lambert-St Louis-MAA Chennai

24h 46m2 stops Boston Logan Intl Abu Dhabi Zayed Intl

₹ 96,977Multiple Airlines

Tue, 22 Sep - Tue, 29 Sep

16:05 - 15:40MAA Chennai-ORD Chicago O'Hare Intl

34h 05m1 stop Abu Dhabi Zayed Intl

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

19h 10m1 stop Abu Dhabi Zayed Intl

₹ 98,025Etihad Airways

Sat, 12 Sep - Wed, 4 Nov

16:05 - 15:40MAA Chennai-ORD Chicago O'Hare Intl

34h 05m1 stop Abu Dhabi Zayed Intl

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

25h 55m1 stop Abu Dhabi Zayed Intl

₹ 98,025Etihad Airways

Sat, 12 Sep - Thu, 12 Nov

16:05 - 15:40MAA Chennai-ORD Chicago O'Hare Intl

34h 05m1 stop Abu Dhabi Zayed Intl

20:20 - 02:35ORD Chicago O'Hare Intl-MAA Chennai

18h 45m1 stop Abu Dhabi Zayed Intl

₹ 98,025Etihad Airways

Sat, 12 Sep - Tue, 3 Nov

11:40 - 12:40MAA Chennai-ORD Chicago O'Hare Intl

36h 30m2 stops Mumbai Chhatrapati Shivaji Intl Zurich

14:20 - 08:40ORD Chicago O'Hare Intl-MAA Chennai

31h 50m2 stops Zurich New Delhi Indira Gandhi Intl

₹ 98,691Multiple Airlines

Tue, 10 Nov - Fri, 7 May

03:50 - 14:55MAA Chennai-ORD Chicago O'Hare Intl

22h 35m1 stop Dubai Intl

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

19h 00m1 stop Dubai Intl

₹ 98,787Emirates

Mon, 23 Nov - Wed, 6 Jan

03:50 - 14:55MAA Chennai-ORD Chicago O'Hare Intl

22h 35m1 stop Dubai Intl

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

19h 00m1 stop Dubai Intl

₹ 98,787Emirates

Sat, 21 Nov - Wed, 6 Jan

03:50 - 14:55MAA Chennai-ORD Chicago O'Hare Intl

22h 35m1 stop Dubai Intl

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

19h 00m1 stop Dubai Intl

₹ 98,787Emirates

Sun, 22 Nov - Wed, 6 Jan

12:25 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

30h 40m3 stops Coimbatore Peelamedu Bengaluru Intl Abu Dhabi Zayed Intl

14:00 - 11:20ORD Chicago O'Hare Intl-MAA Chennai

34h 50m3 stops Abu Dhabi Zayed Intl Riyadh King Khaled Intl Hyderabad Rajiv Gandhi Intl

₹ 99,073Multiple Airlines

Thu, 17 Sep - Thu, 8 Oct

08:55 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

34h 10m2 stops Bengaluru Intl Abu Dhabi Zayed Intl

18:50 - 14:50ORD Chicago O'Hare Intl-MAA Chennai

32h 30m3 stops Amman Queen Alia Intl Dubai Intl Colombo Bandaranaike Intl

₹ 99,263Multiple Airlines

Tue, 8 Sep - Wed, 11 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

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

40h 10m1 stop Abu Dhabi Zayed Intl

14:35 - 00:35ORD Chicago O'Hare Intl-MAA Chennai

22h 30m1 stop Hong Kong Intl

₹ 108,027Multiple Airlines

Tue, 1 Sep - Thu, 26 Nov

10:15 - 09:45MAA Chennai-ORD Chicago O'Hare Intl

34h 00m1 stop Abu Dhabi Zayed Intl

14:35 - 00:35ORD Chicago O'Hare Intl-MAA Chennai

22h 30m1 stop Hong Kong Intl

₹ 108,122Multiple Airlines

Tue, 1 Sep - Wed, 25 Nov

10:15 - 09:45MAA Chennai-ORD Chicago O'Hare Intl

34h 00m1 stop Abu Dhabi Zayed Intl

14:35 - 00:35ORD Chicago O'Hare Intl-MAA Chennai

22h 30m1 stop Hong Kong Intl

₹ 108,122Multiple Airlines

Tue, 1 Sep - Mon, 23 Nov

10:15 - 09:45MAA Chennai-ORD Chicago O'Hare Intl

34h 00m1 stop Abu Dhabi Zayed Intl

14:35 - 00:35ORD Chicago O'Hare Intl-MAA Chennai

22h 30m1 stop Hong Kong Intl

₹ 108,122Multiple Airlines

Tue, 1 Sep - Tue, 24 Nov

15:40 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

34h 45m1 stop Abu Dhabi Zayed Intl

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

19h 10m1 stop Abu Dhabi Zayed Intl

₹ 111,647Etihad Airways

Mon, 31 Aug - Sun, 1 Nov

15:40 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

34h 45m1 stop Abu Dhabi Zayed Intl

21:20 - 15:05ORD Chicago O'Hare Intl-MAA Chennai

31h 15m1 stop Abu Dhabi Zayed Intl

₹ 114,124Etihad Airways

Mon, 31 Aug - Sat, 31 Oct

15:40 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

34h 45m1 stop Abu Dhabi Zayed Intl

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

25h 55m1 stop Abu Dhabi Zayed Intl

₹ 114,124Etihad Airways

Mon, 31 Aug - Mon, 2 Nov

04:35 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

21h 50m1 stop Dubai Intl

20:35 - 20:30ORD Chicago O'Hare Intl-MAA Chennai

37h 25m1 stop Dubai Intl

₹ 193,572Emirates

Sat, 29 Aug - Fri, 4 Sep

22:05 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

28h 20m1 stop Dubai Intl

11:52 - 20:10ORD Chicago O'Hare Intl-MAA Chennai

45h 48m2 stops San Francisco Dubai Intl

₹ 225,581Emirates

Sun, 30 Aug - Thu, 29 Oct

22:05 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

28h 20m1 stop Dubai Intl

06:55 - 02:15ORD Chicago O'Hare Intl-MAA Chennai

31h 50m2 stops Houston George Bush Intcntl Dubai Intl

₹ 227,581Emirates

Sun, 30 Aug - Sun, 1 Nov

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Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

12 Sept

MAA16:05Chennai

34h 05m

1 stop

ORD15:40Chicago O'Hare Intl

5 Nov

ORD13:10Chicago O'Hare Intl

19h 10m

1 stop

MAA19:50Chennai

₹ 98,025

Etihad Airways

11 Sept

MAA04:05Chennai

22h 05m

1 stop

ORD15:40Chicago O'Hare Intl

6 Oct

ORD14:00Chicago O'Hare Intl

19h 40m

1 stop

MAA20:10Chennai

₹ 98,406

Etihad Airways

11 Sept

MAA21:55Chennai

28h 15m

1 stop

ORD15:40Chicago O'Hare Intl

26 Nov

ORD13:10Chicago O'Hare Intl

31h 25m

1 stop

MAA08:05Chennai

₹ 98,787

Oman Air flights from Chennai to Illinois

Our best Oman Air deals on Chennai to Illinois flight tickets

Oman Air

13 Sept

MAA15:30Chennai

59h 10m

2 stops

ORD16:10Chicago O'Hare Intl

13 Nov

ORD18:50Chicago O'Hare Intl

32h 00m

2 stops

MAA14:20Chennai

₹ 99,930

Oman Air

24 Sept

MAA08:15Chennai

42h 25m

2 stops

ORD16:10Chicago O'Hare Intl

5 Feb

ORD18:50Chicago O'Hare Intl

48h 20m

2 stops

MAA06:40Chennai

₹ 101,168

Oman Air

13 Sept

MAA15:30Chennai

59h 10m

2 stops

ORD16:10Chicago O'Hare Intl

27 Nov

ORD18:50Chicago O'Hare Intl

48h 20m

2 stops

MAA06:40Chennai

₹ 102,121

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiSt. Louis

MAA Chennai - STL Lambert-St Louis

MAASTL

Chennai

Tue 22/9

21:55-00:27

2 stops37h 02m

Lambert-St Louis

Tue 29/9

08:54-20:10

2 stops24h 46m

₹ 96,977

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sat 12/9

16:05-15:40

1 stop34h 05m

Chicago O'Hare Intl

Wed 4/11

13:10-19:50

1 stop19h 10m

₹ 98,025

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sat 12/9

16:05-15:40

1 stop34h 05m

Chicago O'Hare Intl

Thu 12/11

13:10-02:35

1 stop25h 55m

₹ 98,025

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sat 12/9

16:05-15:40

1 stop34h 05m

Chicago O'Hare Intl

Tue 3/11

20:20-02:35

1 stop18h 45m

₹ 98,025

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Tue 10/11

11:40-12:40

2 stops36h 30m

Chicago O'Hare Intl

Fri 7/5

14:20-08:40

2 stops31h 50m

₹ 98,691

Fastest return journey

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Mon 23/11

03:50-14:55

1 stop22h 35m

Chicago O'Hare Intl

Wed 6/1

19:45-02:15

1 stop19h 00m

₹ 98,787

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sat 21/11

03:50-14:55

1 stop22h 35m

Chicago O'Hare Intl

Wed 6/1

19:45-02:15

1 stop19h 00m

₹ 98,787

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sun 22/11

03:50-14:55

1 stop22h 35m

Chicago O'Hare Intl

Wed 6/1

19:45-02:15

1 stop19h 00m

₹ 98,787

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Thu 17/9

12:25-08:35

3 stops30h 40m

Chicago O'Hare Intl

Thu 8/10

14:00-11:20

3 stops34h 50m

₹ 99,073

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Tue 8/9

08:55-08:35

2 stops34h 10m

Chicago O'Hare Intl

Wed 11/11

18:50-14:50

3 stops32h 30m

₹ 99,263

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 ₹ 87,260. 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 ₹ 89,070.

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 ₹ 95,929 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 ₹ 86,688 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 52% on your flight if you consider stops on a Chennai to Illinois flight.

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	₹ 52,299
Fastest flight time	21h 10m
Direct flights	None

The best one-way flight to Illinois from Chennai in the past 72 hours is ₹ 52,299. The best return flight deal from Chennai to Illinois found on momondo in the last 72 hours is ₹ 96,977.

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 August 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 ₹ 73,776	Free Cancellation	Rating 7.3 1,522 reviews		Search Etihad Airways flights
Emirates	PriceFrom ₹ 92,661	Free Cancellation	Rating 8.1 3,656 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.