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

American Airlines and Cathay Pacific are the most popular carriers operating from Chennai to Illinois

Which airlines fly to Illinois?

Etihad Airways, Emirates and Qatar Airways are the top three most popular airlines that fly to Illinois from Chennai according to our data. Etihad Airways is the first choice among our users, with 74% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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 3 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.

₹ 63,522 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.

09:55 - 16:47MAA Chennai-STL Lambert-St Louis

42h 22m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl

07:00 - 02:50STL Lambert-St Louis-MAA Chennai

33h 20m2 stops Charlotte Douglas Abu Dhabi Zayed Intl

₹ 97,287Multiple Airlines

Tue, 24 Nov - Sun, 11 Apr

21:50 - 23:59MAA Chennai-STL Lambert-St Louis

37h 39m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl

07:05 - 02:50STL Lambert-St Louis-MAA Chennai

33h 15m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl

₹ 97,287Multiple Airlines

Wed, 2 Dec - Wed, 14 Apr

04:20 - 15:05MAA Chennai-ORD Chicago O'Hare Intl

21h 15m1 stop Doha Hamad Intl

08:00 - 02:30ORD Chicago O'Hare Intl-MAA Chennai

31h 00m2 stops Seattle/Tacoma Intl Doha Hamad Intl

₹ 98,813Qatar Airways

Tue, 6 Oct - Sat, 6 Feb

21:50 - 15:00MAA Chennai-ORD Chicago O'Hare Intl

28h 40m1 stop Abu Dhabi Zayed Intl

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

31h 15m1 stop Abu Dhabi Zayed Intl

₹ 98,908Etihad Airways

Wed, 16 Dec - Fri, 15 Jan

16:10 - 07:55MAA Chennai-ORD Chicago O'Hare Intl

27h 15m1 stop Abu Dhabi Zayed Intl

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

18h 45m1 stop Abu Dhabi Zayed Intl

₹ 98,908Etihad Airways

Thu, 17 Dec - Sat, 16 Jan

22:05 - 15:45MAA Chennai-ORD Chicago O'Hare Intl

28h 10m1 stop Dubai Intl

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

37h 25m1 stop Dubai Intl

₹ 98,908Emirates

Tue, 22 Sep - Tue, 29 Sep

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

37h 05m2 stops Doha Hamad Intl Seattle/Tacoma Intl

19:20 - 02:50ORD Chicago O'Hare Intl-MAA Chennai

21h 00m1 stop Doha Hamad Intl

₹ 99,290Qatar Airways

Mon, 9 Nov - Fri, 7 May

07:20 - 15:05MAA Chennai-ORD Chicago O'Hare Intl

43h 15m2 stops Muscat Seeb Amman Queen Alia Intl

18:50 - 06:40ORD Chicago O'Hare Intl-MAA Chennai

24h 20m2 stops Doha Hamad Intl Muscat Seeb

₹ 99,385Oman Air

Fri, 11 Dec - Thu, 14 Jan

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

21h 30m1 stop Doha Hamad Intl

19:50 - 02:20ORD Chicago O'Hare Intl-MAA Chennai

20h 00m1 stop Doha Hamad Intl

₹ 99,671Qatar Airways

Sat, 12 Sep - Sun, 25 Oct

22:05 - 15:45MAA Chennai-ORD Chicago O'Hare Intl

28h 10m1 stop Dubai Intl

19:45 - 20:10ORD Chicago O'Hare Intl-MAA Chennai

36h 55m1 stop Dubai Intl

₹ 102,628Emirates

Thu, 8 Oct - Thu, 3 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

02:45 - 08:15MAA Chennai-ORD Chicago O'Hare Intl

40h 00m2 stops Addis Ababa Bole Rome Fiumicino

10:15 - 01:10ORD Chicago O'Hare Intl-MAA Chennai

28h 25m1 stop Addis Ababa Bole

₹ 136,201Ethiopian Air

Fri, 14 Aug - Sat, 3 Oct

00:50 - 20:14MAA Chennai-ORD Chicago O'Hare Intl

29h 54m2 stops Hong Kong Intl Seattle/Tacoma Intl

05:57 - 00:35ORD Chicago O'Hare Intl-MAA Chennai

31h 08m2 stops Los Angeles Hong Kong Intl

₹ 136,964Multiple Airlines

Fri, 14 Aug - Thu, 3 Dec

01:55 - 20:05MAA Chennai-ORD Chicago O'Hare Intl

28h 40m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

20:25 - 20:20ORD Chicago O'Hare Intl-MAA Chennai

37h 25m1 stop Abu Dhabi Zayed Intl

₹ 138,490Multiple Airlines

Thu, 13 Aug - Sun, 16 Aug

02:45 - 08:15MAA Chennai-ORD Chicago O'Hare Intl

40h 00m1 stop Addis Ababa Bole

10:15 - 01:10ORD Chicago O'Hare Intl-MAA Chennai

28h 25m1 stop Addis Ababa Bole

₹ 141,161Ethiopian Air

Fri, 14 Aug - Sat, 3 Oct

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

34h 05m1 stop Abu Dhabi Zayed Intl

20:25 - 02:50ORD Chicago O'Hare Intl-MAA Chennai

19h 55m1 stop Abu Dhabi Zayed Intl

₹ 142,210Etihad Airways

Sat, 15 Aug - Mon, 17 Aug

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

34h 05m1 stop Abu Dhabi Zayed Intl

20:25 - 02:50ORD Chicago O'Hare Intl-MAA Chennai

19h 55m1 stop Abu Dhabi Zayed Intl

₹ 157,280Etihad Airways

Sat, 15 Aug - Tue, 18 Aug

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

34h 05m1 stop Abu Dhabi Zayed Intl

20:25 - 02:50ORD Chicago O'Hare Intl-MAA Chennai

19h 55m1 stop Abu Dhabi Zayed Intl

₹ 157,280Etihad Airways

Sat, 15 Aug - Sun, 16 Aug

09:50 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

40h 35m1 stop Dubai Intl

19:45 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

25h 00m1 stop Dubai Intl

₹ 294,244Emirates

Mon, 17 Aug - Tue, 17 Nov

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

28h 20m1 stop Dubai Intl

19:45 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

25h 00m1 stop Dubai Intl

₹ 294,340Emirates

Mon, 17 Aug - Tue, 17 Nov

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

28h 20m1 stop Dubai Intl

19:45 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

25h 00m1 stop Dubai Intl

₹ 294,435Emirates

Mon, 17 Aug - Tue, 17 Nov

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British Airways flights from Chennai to Illinois

Our best British Airways deals on Chennai to Illinois flight tickets

British Airways

6 Oct

MAA05:35Chennai

45h 45m

2 stops

ORD16:50Chicago O'Hare Intl

6 Feb

ORD16:45Chicago O'Hare Intl

25h 20m

2 stops

MAA05:35Chennai

₹ 100,816

British Airways

23 Oct

MAA05:35Chennai

42h 55m

2 stops

ORD14:00Chicago O'Hare Intl

11 Jan

ORD16:26Chicago O'Hare Intl

25h 39m

2 stops

MAA05:35Chennai

₹ 101,102

British Airways

4 Feb

MAA07:35Chennai

45h 36m

2 stops

STL17:41Lambert-St Louis

8 Feb

STL17:27Lambert-St Louis

48h 38m

2 stops

MAA05:35Chennai

₹ 103,868

Emirates flights from Chennai to Illinois

Our best Emirates deals on Chennai to Illinois flight tickets

Emirates

8 Oct

MAA22:05Chennai

28h 10m

1 stop

ORD15:45Chicago O'Hare Intl

3 Dec

ORD19:45Chicago O'Hare Intl

36h 55m

1 stop

MAA20:10Chennai

₹ 102,628

Emirates

8 Oct

MAA09:50Chennai

40h 25m

1 stop

ORD15:45Chicago O'Hare Intl

3 Dec

ORD19:45Chicago O'Hare Intl

36h 55m

1 stop

MAA20:10Chennai

₹ 104,917

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiSt. Louis

MAA Chennai - STL Lambert-St Louis

MAASTL

Chennai

Tue 24/11

09:55-16:47

2 stops42h 22m

Lambert-St Louis

Sun 11/4

07:00-02:50

2 stops33h 20m

₹ 97,287

ChennaiSt. Louis

MAA Chennai - STL Lambert-St Louis

MAASTL

Chennai

Wed 2/12

21:50-23:59

2 stops37h 39m

Lambert-St Louis

Wed 14/4

07:05-02:50

2 stops33h 15m

₹ 97,287

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Tue 6/10

04:20-15:05

1 stop21h 15m

Chicago O'Hare Intl

Sat 6/2

08:00-02:30

2 stops31h 00m

₹ 98,813

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Wed 16/12

21:50-15:00

1 stop28h 40m

Chicago O'Hare Intl

Fri 15/1

20:20-15:05

1 stop31h 15m

₹ 98,908

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Thu 17/12

16:10-07:55

1 stop27h 15m

Chicago O'Hare Intl

Sat 16/1

20:20-02:35

1 stop18h 45m

₹ 98,908

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Tue 22/9

22:05-15:45

1 stop28h 10m

Chicago O'Hare Intl

Tue 29/9

20:35-20:30

1 stop37h 25m

₹ 98,908

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Mon 9/11

04:05-05:40

2 stops37h 05m

Chicago O'Hare Intl

Fri 7/5

19:20-02:50

1 stop21h 00m

₹ 99,290

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Fri 11/12

07:20-15:05

2 stops43h 15m

Chicago O'Hare Intl

Thu 14/1

18:50-06:40

2 stops24h 20m

₹ 99,385

Fastest return journey

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sat 12/9

04:05-15:05

1 stop21h 30m

Chicago O'Hare Intl

Sun 25/10

19:50-02:20

1 stop20h 00m

₹ 99,671

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Thu 8/10

22:05-15:45

1 stop28h 10m

Chicago O'Hare Intl

Thu 3/12

19:45-20:10

1 stop36h 55m

₹ 102,628

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, October 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 ₹ 86,795. If you aren’t able to travel during the month of October, then book flights to Illinois from Chennai during April instead. Flights to Illinois in April, while not as cheap as those in October, still average around ₹ 87,367.

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 ₹ 96,929 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 ₹ 84,887 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 58% 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

Fastest flight time	21h 10m
Direct flights	None

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 3 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 ₹ 73,866	Free Cancellation	Rating 7.3 1,502 reviews	Search Etihad Airways flights
Qatar Airways	PriceFrom ₹ 84,658	Free Cancellation	Rating 7.4 3,743 reviews	Search Qatar Airways flights
Emirates	PriceFrom ₹ 92,584	Free Cancellation	Rating 8.1 3,654 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.