Which airlines fly to Illinois?

Etihad Airways, Emirates and British 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 69% 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.

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

Ethiopian 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 July 2026, there are 4 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.

₹ 58,578 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.

10:00 - 07:55

MAA

ORD

33h 25m

1 stop

20:20 - 08:10

ORD

MAA

24h 20m

1 stop

₹ 96,011Etihad Airways

Wed, 16 Dec - Fri, 15 Jan

03:55 - 07:55

MAA

ORD

39h 30m

1 stop

13:10 - 19:55

ORD

MAA

19h 15m

1 stop

₹ 96,106Etihad Airways

Thu, 10 Dec - Mon, 18 Jan

21:55 - 08:35

MAA

ORD

21h 10m

1 stop

20:20 - 02:30

ORD

MAA

18h 40m

1 stop

₹ 96,201Etihad Airways

Sun, 20 Sep - Wed, 4 Nov

05:35 - 05:00

MAA

ORD

33h 55m

2 stops

21:50 - 05:35

ORD

MAA

20h 15m

1 stop

₹ 96,963British Airways

Mon, 12 Oct - Thu, 28 Jan

04:05 - 15:45

MAA

ORD

22h 10m

1 stop

20:35 - 08:05

ORD

MAA

25h 00m

1 stop

₹ 97,249Emirates

Sun, 4 Oct - Wed, 21 Oct

05:35 - 21:43

MAA

STL

26h 38m

2 stops

17:18 - 03:30

STL

MAA

47h 42m

2 stops

₹ 116,489British Airways

Thu, 24 Sep - Mon, 28 Sep

11:00 - 18:39

MAA

STL

42h 09m

3 stops

06:30 - 20:10

STL

MAA

26h 10m

2 stops

₹ 158,684Air India

Tue, 1 Sep - Wed, 27 Jan

04:05 - 19:21

MAA

STL

25h 46m

2 stops

11:50 - 02:30

STL

MAA

27h 10m

2 stops

₹ 158,970Qatar Airways

Mon, 27 Jul - Sun, 6 Dec

04:05 - 19:21

MAA

STL

25h 46m

2 stops

14:54 - 02:30

STL

MAA

24h 06m

2 stops

₹ 162,018Qatar Airways

Fri, 31 Jul - Sun, 6 Dec

14:00 - 18:39

MAA

STL

39h 09m

3 stops

14:00 - 20:10

STL

MAA

42h 40m

2 stops

₹ 162,399Air India

Tue, 1 Sep - Tue, 12 Jan

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British Airways flights from Chennai to Illinois

Our best British Airways deals on Chennai to Illinois flight tickets

British Airways

12 Oct

MAA05:35Chennai

33h 55m

2 stops

ORD05:00Chicago O'Hare Intl

28 Jan

ORD21:50Chicago O'Hare Intl

20h 15m

1 stop

MAA05:35Chennai

₹ 96,963

British Airways

26 Oct

MAA07:35Chennai

41h 55m

2 stops

ORD15:00Chicago O'Hare Intl

3 Nov

ORD17:10Chicago O'Hare Intl

24h 55m

1 stop

MAA05:35Chennai

₹ 98,773

British Airways

25 Sept

MAA05:35Chennai

42h 55m

2 stops

ORD14:00Chicago O'Hare Intl

4 Oct

ORD21:15Chicago O'Hare Intl

19h 45m

1 stop

MAA03:30Chennai

₹ 98,868

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

16 Dec

MAA10:00Chennai

33h 25m

1 stop

ORD07:55Chicago O'Hare Intl

14 Jan

ORD13:10Chicago O'Hare Intl

31h 30m

1 stop

MAA08:10Chennai

₹ 96,011

Etihad Airways

2 Oct

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

8 Jan

ORD20:20Chicago O'Hare Intl

24h 20m

1 stop

MAA08:10Chennai

₹ 96,106

Etihad Airways

20 Sept

MAA21:55Chennai

21h 10m

1 stop

ORD08:35Chicago O'Hare Intl

4 Nov

ORD20:20Chicago O'Hare Intl

18h 40m

1 stop

MAA02:30Chennai

₹ 96,201

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 16/12

10:00-07:55

1 stop33h 25m

Chicago O'Hare Intl

Fri 15/1

20:20-08:10

1 stop24h 20m

₹ 96,011

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 10/12

03:55-07:55

1 stop39h 30m

Chicago O'Hare Intl

Mon 18/1

13:10-19:55

1 stop19h 15m

₹ 96,106

Fastest return journey

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 20/9

21:55-08:35

1 stop21h 10m

Chicago O'Hare Intl

Wed 4/11

20:20-02:30

1 stop18h 40m

₹ 96,201

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 12/10

05:35-05:00

2 stops33h 55m

Chicago O'Hare Intl

Thu 28/1

21:50-05:35

1 stop20h 15m

₹ 96,963

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 4/10

04:05-15:45

1 stop22h 10m

Chicago O'Hare Intl

Wed 21/10

20:35-08:05

1 stop25h 00m

₹ 97,249

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 24/9

05:35-21:43

2 stops26h 38m

Lambert-St Louis

Mon 28/9

17:18-03:30

2 stops47h 42m

₹ 116,489

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 1/9

11:00-18:39

3 stops42h 09m

Lambert-St Louis

Wed 27/1

06:30-20:10

2 stops26h 10m

₹ 158,684

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 27/7

04:05-19:21

2 stops25h 46m

Lambert-St Louis

Sun 6/12

11:50-02:30

2 stops27h 10m

₹ 158,970

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Fri 31/7

04:05-19:21

2 stops25h 46m

Lambert-St Louis

Sun 6/12

14:54-02:30

2 stops24h 06m

₹ 162,018

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 1/9

14:00-18:39

3 stops39h 09m

Lambert-St Louis

Tue 12/1

14:00-20:10

2 stops42h 40m

₹ 162,399

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 ₹ 38,861. If you aren’t able to travel during the month of April, then book flights to Illinois from Chennai during October instead. Flights to Illinois in October, while not as cheap as those in April, still average around ₹ 64,483.

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 ₹ 97,384 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 ₹ 86,676 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 20% 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 45m
Direct flights	None

The fastest flight from Chennai to Illinois takes 21h 45m

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 July 2026, there are 4 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 ₹ 73,765	Free Cancellation	Rating 7.3 1,477 reviews	Search Etihad Airways flights
British Airways	PriceFrom ₹ 91,569	Free Cancellation	Rating 6.7 8,112 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 92,648	Free Cancellation	Rating 8.1 3,617 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.