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 45% 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?

Etihad Airways and Qatar 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 February 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.

₹ 39,451 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 - 08:35

MAA

ORD

33h 05m

1 stop

14:00 - 15:05

ORD

MAA

38h 35m

1 stop

₹ 67,837Etihad Airways

Wed, 11 Mar - Thu, 30 Apr

15:25 - 08:35

MAA

ORD

27h 40m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 68,200Etihad Airways

Sun, 8 Mar - Wed, 29 Apr

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 68,290Etihad Airways

Wed, 1 Apr - Wed, 5 Aug

16:35 - 08:35

MAA

ORD

26h 30m

1 stop

14:00 - 08:25

ORD

MAA

31h 55m

1 stop

₹ 68,744Etihad Airways

Wed, 15 Apr - Wed, 30 Sep

19:05 - 16:10

MAA

ORD

31h 35m

2 stops

17:10 - 10:05

ORD

MAA

30h 25m

2 stops

₹ 68,925Air France

Tue, 24 Mar - Tue, 28 Apr

05:35 - 21:11

MAA

STL

26h 06m

2 stops

13:29 - 03:30

STL

MAA

27h 31m

2 stops

₹ 98,037British Airways

Thu, 2 Apr - Thu, 9 Apr

05:35 - 16:33

MAA

STL

45h 28m

2 stops

09:46 - 03:30

STL

MAA

31h 14m

2 stops

₹ 108,739British Airways

Mon, 20 Jul - Sun, 20 Sep

00:50 - 22:59

MAA

STL

32h 39m

2 stops

06:36 - 23:35

STL

MAA

54h 29m

2 stops

₹ 123,249Cathay Pacific

Thu, 14 May - Sat, 18 Jul

04:05 - 21:11

MAA

STL

27h 36m

2 stops

17:18 - 02:30

STL

MAA

22h 42m

2 stops

₹ 123,521Emirates

Tue, 14 Jul - Tue, 15 Sep

01:55 - 13:25

MAA

STL

22h 00m

1 stop

13:27 - 00:10

STL

MAA

24h 13m

2 stops

₹ 124,972Lufthansa

Mon, 13 Jul - Tue, 15 Sep

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

10 Mar

MAA03:55Chennai

39h 10m

1 stop

ORD08:35Chicago O'Hare Intl

30 Apr

ORD14:00Chicago O'Hare Intl

31h 55m

1 stop

MAA08:25Chennai

₹ 67,837

Etihad Airways

8 Mar

MAA15:25Chennai

27h 40m

1 stop

ORD08:35Chicago O'Hare Intl

28 Apr

ORD14:00Chicago O'Hare Intl

19h 40m

1 stop

MAA20:10Chennai

₹ 68,200

Etihad Airways

1 Apr

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

5 Aug

ORD14:00Chicago O'Hare Intl

31h 55m

1 stop

MAA08:25Chennai

₹ 68,290

Air France flights from Chennai to Illinois

Our best Air France deals on Chennai to Illinois flight tickets

Air France

24 Mar

MAA19:05Chennai

31h 35m

2 stops

ORD16:10Chicago O'Hare Intl

28 Apr

ORD17:10Chicago O'Hare Intl

30h 25m

2 stops

MAA10:05Chennai

₹ 68,925

Air France

28 May

MAA22:00Chennai

27h 40m

2 stops

ORD15:10Chicago O'Hare Intl

24 Aug

ORD17:10Chicago O'Hare Intl

28h 40m

2 stops

MAA08:20Chennai

₹ 74,820

Air France

22 Feb

MAA21:30Chennai

29h 10m

2 stops

ORD15:10Chicago O'Hare Intl

9 Aug

ORD17:10Chicago O'Hare Intl

30h 25m

2 stops

MAA10:05Chennai

₹ 85,975

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 11/3

10:00-08:35

1 stop33h 05m

Chicago O'Hare Intl

Thu 30/4

14:00-15:05

1 stop38h 35m

₹ 67,837

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 8/3

15:25-08:35

1 stop27h 40m

Chicago O'Hare Intl

Wed 29/4

14:00-20:10

1 stop19h 40m

₹ 68,200

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 1/4

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Wed 5/8

14:00-20:10

1 stop19h 40m

₹ 68,290

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 15/4

16:35-08:35

1 stop26h 30m

Chicago O'Hare Intl

Wed 30/9

14:00-08:25

1 stop31h 55m

₹ 68,744

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 24/3

19:05-16:10

2 stops31h 35m

Chicago O'Hare Intl

Tue 28/4

17:10-10:05

2 stops30h 25m

₹ 68,925

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 2/4

05:35-21:11

2 stops26h 06m

Lambert-St Louis

Thu 9/4

13:29-03:30

2 stops27h 31m

₹ 98,037

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 20/7

05:35-16:33

2 stops45h 28m

Lambert-St Louis

Sun 20/9

09:46-03:30

2 stops31h 14m

₹ 108,739

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 14/5

00:50-22:59

2 stops32h 39m

Lambert-St Louis

Sat 18/7

06:36-23:35

2 stops54h 29m

₹ 123,249

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 14/7

04:05-21:11

2 stops27h 36m

Lambert-St Louis

Tue 15/9

17:18-02:30

2 stops22h 42m

₹ 123,521

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 13/7

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Tue 15/9

13:27-00:10

2 stops24h 13m

₹ 124,972

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 ₹ 79,899. If you aren’t able to travel during the month of October, then book flights to Illinois from Chennai during February instead. Flights to Illinois in February, while not as cheap as those in October, still average around ₹ 87,154.

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 ₹ 96,851 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 ₹ 85,250 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 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 February 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 ₹ 70,236	Free Cancellation	Rating 7.3 1,397 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 72,833	Free Cancellation	Rating 5.5 2,967 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 81,863	Free Cancellation	Rating 7.4 3,738 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 81,877	Free Cancellation	Rating 6.8 7,787 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 88,126	Free Cancellation	Rating 6.7 7,751 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 89,308	Free Cancellation	Rating 8.1 3,521 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.