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 37% 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, SWISS, and Cathay Pacific 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 December 2025, 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.

₹ 41,404 Cheap Flights from Chennai to Illinois in 2025/26

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 05m1 stop

13:10 - 19:55

ORD

MAA

19h 15m1 stop

₹ 66,911Etihad Airways

Tue, 10 Feb - Sun, 1 Mar

16:10 - 07:35

MAA

ORD

26h 55m1 stop

13:10 - 19:55

ORD

MAA

19h 15m1 stop

₹ 67,360Etihad Airways

Wed, 11 Feb - Sun, 1 Mar

03:55 - 08:35

MAA

ORD

39h 10m1 stop

14:00 - 14:35

ORD

MAA

38h 05m1 stop

₹ 67,630Etihad Airways

Sun, 8 Mar - Wed, 15 Apr

10:00 - 07:35

MAA

ORD

33h 05m1 stop

13:10 - 19:55

ORD

MAA

19h 15m1 stop

₹ 67,809Etihad Airways

Mon, 9 Feb - Mon, 16 Feb

03:55 - 08:35

MAA

ORD

39h 10m1 stop

14:00 - 20:10

ORD

MAA

19h 40m1 stop

₹ 67,989Etihad Airways

Sun, 8 Mar - Thu, 16 Apr

07:35 - 19:29

MAA

STL

47h 24m2 stops

18:44 - 05:35

STL

MAA

47h 21m2 stops

₹ 89,634British Airways

Wed, 4 Feb - Sun, 8 Feb

07:35 - 19:29

MAA

STL

47h 24m2 stops

18:44 - 05:35

STL

MAA

47h 21m2 stops

₹ 89,903British Airways

Wed, 4 Feb - Sun, 8 Feb

16:35 - 15:19

MAA

STL

33h 14m2 stops

07:42 - 08:25

STL

MAA

38h 13m2 stops

₹ 107,597Multiple Airlines

Thu, 2 Apr - Thu, 2 Jul

21:10 - 13:25

MAA

STL

26h 45m2 stops

13:27 - 08:45

STL

MAA

32h 48m3 stops

₹ 150,707Lufthansa

Thu, 2 Apr - Thu, 2 Jul

20:10 - 14:24

MAA

STL

28h 44m3 stops

11:51 - 10:05

STL

MAA

35h 44m3 stops

₹ 204,057KLM

Thu, 2 Apr - Thu, 2 Jul

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

10 Feb

MAA03:55Chennai

39h 10m

1 stop

ORD07:35Chicago O'Hare Intl

1 Mar

ORD13:10Chicago O'Hare Intl

19h 15m

1 stop

MAA19:55Chennai

₹ 66,552

Find similar

Etihad Airways

10 Feb

MAA10:00Chennai

33h 05m

1 stop

ORD07:35Chicago O'Hare Intl

1 Mar

ORD13:10Chicago O'Hare Intl

19h 15m

1 stop

MAA19:55Chennai

₹ 66,911

Find similar

Etihad Airways

4 Mar

MAA10:00Chennai

33h 05m

1 stop

ORD07:35Chicago O'Hare Intl

4 Aug

ORD14:00Chicago O'Hare Intl

38h 05m

1 stop

MAA14:35Chennai

₹ 67,540

Find similar

Air France flights from Chennai to Illinois

Our best Air France deals on Chennai to Illinois flight tickets

Air France

28 Jan

MAA19:00Chennai

31h 40m

2 stops

ORD15:10Chicago O'Hare Intl

27 Feb

ORD17:20Chicago O'Hare Intl

27h 00m

2 stops

MAA07:50Chennai

₹ 70,683

Find similar

Air France

30 Dec

MAA21:30Chennai

29h 10m

2 stops

ORD15:10Chicago O'Hare Intl

6 Jan

ORD17:20Chicago O'Hare Intl

25h 45m

2 stops

MAA06:35Chennai

₹ 119,991

Find similar

Air France

30 Dec

MAA20:30Chennai

30h 10m

2 stops

ORD15:10Chicago O'Hare Intl

6 Jan

ORD17:20Chicago O'Hare Intl

27h 00m

2 stops

MAA07:50Chennai

₹ 173,340

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 10/2

10:00-07:35

1 stop33h 05m

Chicago O'Hare Intl

Sun 1/3

13:10-19:55

1 stop19h 15m

₹ 66,911

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 11/2

16:10-07:35

1 stop26h 55m

Chicago O'Hare Intl

Sun 1/3

13:10-19:55

1 stop19h 15m

₹ 67,360

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 8/3

03:55-08:35

1 stop39h 10m

Chicago O'Hare Intl

Wed 15/4

14:00-14:35

1 stop38h 05m

₹ 67,630

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 9/2

10:00-07:35

1 stop33h 05m

Chicago O'Hare Intl

Mon 16/2

13:10-19:55

1 stop19h 15m

₹ 67,809

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 8/3

03:55-08:35

1 stop39h 10m

Chicago O'Hare Intl

Thu 16/4

14:00-20:10

1 stop19h 40m

₹ 67,989

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 4/2

07:35-19:29

2 stops47h 24m

Lambert-St Louis

Sun 8/2

18:44-05:35

2 stops47h 21m

₹ 89,634

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 4/2

07:35-19:29

2 stops47h 24m

Lambert-St Louis

Sun 8/2

18:44-05:35

2 stops47h 21m

₹ 89,903

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 2/4

16:35-15:19

2 stops33h 14m

Lambert-St Louis

Thu 2/7

07:42-08:25

2 stops38h 13m

₹ 107,597

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 2/4

21:10-13:25

2 stops26h 45m

Lambert-St Louis

Thu 2/7

13:27-08:45

3 stops32h 48m

₹ 150,707

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 2/4

20:10-14:24

3 stops28h 44m

Lambert-St Louis

Thu 2/7

11:51-10:05

3 stops35h 44m

₹ 204,057

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 ₹ 79,126. 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 ₹ 90,712.

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 ₹ 99,311 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 ₹ 79,216 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 18% 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

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 December 2025, 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
Air India	PriceFrom ₹ 72,128	Free Cancellation	Rating 5.5 2,958 reviews	Search Air India flights
Etihad Airways	PriceFrom ₹ 75,005	Free Cancellation	Rating 7.3 1,339 reviews	Search Etihad Airways flights
Lufthansa	PriceFrom ₹ 81,085	Free Cancellation	Rating 6.8 7,659 reviews	Search Lufthansa flights
Qatar Airways	PriceFrom ₹ 81,588	Free Cancellation	Rating 7.4 3,698 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 87,274	Free Cancellation	Rating 6.7 7,617 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 90,118	Free Cancellation	Rating 8.1 3,446 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.