Which airlines fly to Illinois?

Etihad Airways, British Airways and Emirates 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 40% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 6 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?

Air India, Qatar Airways, and Lufthansa 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 January 2026, there are 6 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.

₹ 42,249 Cheap Flights from Chennai to Illinois in 2026

1 adult

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Find the cheapest flights from Chennai to Illinois

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:00 - 07:35

MAA

ORD

33h 05m

1 stop

13:10 - 08:10

ORD

MAA

31h 30m

1 stop

₹ 64,873Etihad Airways

Thu, 5 Feb - Wed, 18 Feb

16:10 - 07:35

MAA

ORD

26h 55m

1 stop

13:10 - 08:10

ORD

MAA

31h 30m

1 stop

₹ 65,509Etihad Airways

Mon, 2 Feb - Sun, 15 Feb

03:55 - 07:35

MAA

ORD

39h 10m

1 stop

14:10 - 02:30

ORD

MAA

25h 50m

1 stop

₹ 66,599Etihad Airways

Wed, 4 Mar - Thu, 12 Mar

16:10 - 07:35

MAA

ORD

26h 55m

1 stop

13:30 - 22:40

ORD

MAA

21h 40m

1 stop

₹ 66,781Multiple Airlines

Mon, 2 Feb - Mon, 16 Feb

03:55 - 07:35

MAA

ORD

39h 10m

1 stop

13:10 - 02:30

ORD

MAA

25h 50m

1 stop

₹ 67,326Etihad Airways

Wed, 4 Feb - Thu, 26 Feb

16:10 - 07:35

MAA

ORD

26h 55m

1 stop

13:10 - 19:55

ORD

MAA

19h 15m

1 stop

₹ 67,417Etihad Airways

Thu, 5 Feb - Thu, 26 Feb

10:00 - 17:53

MAA

STL

42h 23m

2 stops

09:45 - 20:10

STL

MAA

23h 55m

2 stops

₹ 89,677Multiple Airlines

Wed, 11 Mar - Wed, 12 Aug

05:35 - 23:32

MAA

STL

28h 27m

2 stops

13:15 - 03:30

STL

MAA

27h 45m

2 stops

₹ 105,941British Airways

Fri, 26 Jun - Wed, 30 Sep

01:50 - 14:55

MAA

STL

23h 35m

1 stop

08:25 - 00:10

STL

MAA

29h 15m

2 stops

₹ 117,570Lufthansa

Tue, 10 Mar - Wed, 12 Aug

01:55 - 13:25

MAA

STL

22h 00m

1 stop

15:30 - 08:45

STL

MAA

30h 45m

2 stops

₹ 134,379Lufthansa

Thu, 25 Jun - Wed, 30 Sep

Air India flights from Chennai to Illinois

Our best Air India deals on Chennai to Illinois flight tickets

Air India

2 Apr

MAA16:20Chennai

29h 20m

2 stops

ORD11:10Chicago O'Hare Intl

29 Jul

ORD13:10Chicago O'Hare Intl

23h 00m

1 stop

MAA22:40Chennai

₹ 69,052

Air India

4 Apr

MAA21:40Chennai

24h 00m

2 stops

ORD11:10Chicago O'Hare Intl

31 Jul

ORD13:10Chicago O'Hare Intl

21h 20m

1 stop

MAA21:00Chennai

₹ 71,414

Air India

4 Apr

MAA21:40Chennai

24h 00m

2 stops

ORD11:10Chicago O'Hare Intl

31 Jul

ORD13:10Chicago O'Hare Intl

21h 20m

1 stop

MAA21:00Chennai

₹ 72,868

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

5 Feb

MAA10:00Chennai

33h 05m

1 stop

ORD07:35Chicago O'Hare Intl

18 Feb

ORD13:10Chicago O'Hare Intl

31h 30m

1 stop

MAA08:10Chennai

₹ 64,873

Etihad Airways

2 Feb

MAA16:10Chennai

26h 55m

1 stop

ORD07:35Chicago O'Hare Intl

15 Feb

ORD13:10Chicago O'Hare Intl

31h 30m

1 stop

MAA08:10Chennai

₹ 65,509

Etihad Airways

4 Mar

MAA03:55Chennai

39h 10m

1 stop

ORD07:35Chicago O'Hare Intl

12 Mar

ORD14:10Chicago O'Hare Intl

25h 50m

1 stop

MAA02:30Chennai

₹ 66,599

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 5/2

10:00-07:35

1 stop33h 05m

Chicago O'Hare Intl

Wed 18/2

13:10-08:10

1 stop31h 30m

₹ 64,873

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 2/2

16:10-07:35

1 stop26h 55m

Chicago O'Hare Intl

Sun 15/2

13:10-08:10

1 stop31h 30m

₹ 65,509

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 4/3

03:55-07:35

1 stop39h 10m

Chicago O'Hare Intl

Thu 12/3

14:10-02:30

1 stop25h 50m

₹ 66,599

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 2/2

16:10-07:35

1 stop26h 55m

Chicago O'Hare Intl

Mon 16/2

13:30-22:40

1 stop21h 40m

₹ 66,781

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 4/2

03:55-07:35

1 stop39h 10m

Chicago O'Hare Intl

Thu 26/2

13:10-02:30

1 stop25h 50m

₹ 67,326

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 5/2

16:10-07:35

1 stop26h 55m

Chicago O'Hare Intl

Thu 26/2

13:10-19:55

1 stop19h 15m

₹ 67,417

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 11/3

10:00-17:53

2 stops42h 23m

Lambert-St Louis

Wed 12/8

09:45-20:10

2 stops23h 55m

₹ 89,677

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Fri 26/6

05:35-23:32

2 stops28h 27m

Lambert-St Louis

Wed 30/9

13:15-03:30

2 stops27h 45m

₹ 105,941

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 10/3

01:50-14:55

1 stop23h 35m

Lambert-St Louis

Wed 12/8

08:25-00:10

2 stops29h 15m

₹ 117,570

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 25/6

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Wed 30/9

15:30-08:45

2 stops30h 45m

₹ 134,379

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 ₹ 80,046. If you aren’t able to travel during the month of October, then book flights to Illinois from Chennai during September instead. Flights to Illinois in September, while not as cheap as those in October, still average around ₹ 91,858.

How far in advance should I book a flight 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 ₹ 97,597 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 ₹ 76,775 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 21% 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 25m
Direct flights	None

The fastest flight from Chennai to Illinois takes 21h 25m

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

Search flight deals

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 January 2026, there are 6 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 ₹ 66,881	Free Cancellation	Rating 7.3 1,374 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 72,967	Free Cancellation	Rating 5.5 2,977 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 80,645	Free Cancellation	Rating 7.4 3,721 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 82,028	Free Cancellation	Rating 6.8 7,736 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 88,289	Free Cancellation	Rating 6.7 7,690 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 94,655	Free Cancellation	Rating 8.1 3,485 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.