Which airlines fly to Illinois?

Etihad Airways, Air India 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 53% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 5 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, Qatar Airways, and Oman Air 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 March 2026, there are 5 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.

₹ 47,268 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.

04:05 - 09:15

MAA

ORD

39h 40m

1 stop

21:10 - 02:25

ORD

MAA

18h 45m

1 stop

₹ 75,251Etihad Airways

Mon, 13 Apr - Tue, 30 Jun

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

21:10 - 08:25

ORD

MAA

24h 45m

1 stop

₹ 75,629Etihad Airways

Sat, 23 May - Sat, 17 Oct

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

21:10 - 08:25

ORD

MAA

24h 45m

1 stop

₹ 75,723Etihad Airways

Mon, 8 Jun - Thu, 17 Sep

04:05 - 15:40

MAA

ORD

22h 05m

1 stop

13:10 - 08:10

ORD

MAA

31h 30m

1 stop

₹ 75,818Etihad Airways

Thu, 23 Jul - Sun, 17 Jan

16:05 - 08:35

MAA

ORD

27h 00m

1 stop

21:10 - 02:25

ORD

MAA

18h 45m

1 stop

₹ 76,196Etihad Airways

Thu, 14 May - Sun, 12 Jul

16:05 - 18:04

MAA

STL

36h 29m

2 stops

07:35 - 20:10

STL

MAA

26h 05m

2 stops

₹ 91,983Multiple Airlines

Thu, 14 May - Sun, 18 Oct

21:55 - 18:04

MAA

STL

30h 39m

2 stops

07:35 - 20:10

STL

MAA

26h 05m

2 stops

₹ 92,078Multiple Airlines

Thu, 14 May - Sun, 18 Oct

03:55 - 19:36

MAA

STL

26h 11m

2 stops

13:20 - 02:30

STL

MAA

25h 40m

2 stops

₹ 127,245Qatar Airways

Mon, 8 Jun - Thu, 5 Nov

04:20 - 20:30

MAA

STL

26h 40m

2 stops

13:20 - 02:30

STL

MAA

25h 40m

2 stops

₹ 127,434Qatar Airways

Tue, 9 Jun - Thu, 5 Nov

04:05 - 21:16

MAA

STL

27h 41m

2 stops

17:18 - 02:30

STL

MAA

22h 42m

2 stops

₹ 127,718Emirates

Sun, 24 May - Sat, 17 Oct

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

13 Apr

MAA04:05Chennai

39h 40m

1 stop

ORD09:15Chicago O'Hare Intl

30 Jun

ORD21:10Chicago O'Hare Intl

18h 45m

1 stop

MAA02:25Chennai

₹ 75,251

Etihad Airways

23 May

MAA04:05Chennai

39h 00m

1 stop

ORD08:35Chicago O'Hare Intl

17 Oct

ORD21:10Chicago O'Hare Intl

24h 45m

1 stop

MAA08:25Chennai

₹ 75,629

Etihad Airways

8 Jun

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

17 Sept

ORD21:10Chicago O'Hare Intl

24h 45m

1 stop

MAA08:25Chennai

₹ 75,723

Qatar Airways flights from Chennai to Illinois

Our best Qatar Airways deals on Chennai to Illinois flight tickets

Qatar Airways

15 Apr

MAA03:55Chennai

21h 40m

1 stop

ORD15:05Chicago O'Hare Intl

7 May

ORD19:20Chicago O'Hare Intl

20h 50m

1 stop

MAA02:40Chennai

₹ 81,395

Qatar Airways

7 Apr

MAA03:55Chennai

23h 10m

1 stop

ORD16:35Chicago O'Hare Intl

22 Apr

ORD19:20Chicago O'Hare Intl

21h 00m

1 stop

MAA02:50Chennai

₹ 86,878

Qatar Airways

7 Apr

MAA03:55Chennai

23h 10m

1 stop

ORD16:35Chicago O'Hare Intl

17 Apr

ORD19:20Chicago O'Hare Intl

21h 00m

1 stop

MAA02:50Chennai

₹ 89,620

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 13/4

04:05-09:15

1 stop39h 40m

Chicago O'Hare Intl

Tue 30/6

21:10-02:25

1 stop18h 45m

₹ 75,251

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sat 23/5

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Sat 17/10

21:10-08:25

1 stop24h 45m

₹ 75,629

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 8/6

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Thu 17/9

21:10-08:25

1 stop24h 45m

₹ 75,723

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 23/7

04:05-15:40

1 stop22h 05m

Chicago O'Hare Intl

Sun 17/1

13:10-08:10

1 stop31h 30m

₹ 75,818

Fastest return journey

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 14/5

16:05-08:35

1 stop27h 00m

Chicago O'Hare Intl

Sun 12/7

21:10-02:25

1 stop18h 45m

₹ 76,196

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 14/5

16:05-18:04

2 stops36h 29m

Lambert-St Louis

Sun 18/10

07:35-20:10

2 stops26h 05m

₹ 91,983

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 14/5

21:55-18:04

2 stops30h 39m

Lambert-St Louis

Sun 18/10

07:35-20:10

2 stops26h 05m

₹ 92,078

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 8/6

03:55-19:36

2 stops26h 11m

Lambert-St Louis

Thu 5/11

13:20-02:30

2 stops25h 40m

₹ 127,245

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 9/6

04:20-20:30

2 stops26h 40m

Lambert-St Louis

Thu 5/11

13:20-02:30

2 stops25h 40m

₹ 127,434

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sun 24/5

04:05-21:16

2 stops27h 41m

Lambert-St Louis

Sat 17/10

17:18-02:30

2 stops22h 42m

₹ 127,718

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 ₹ 83,286. If you aren’t able to travel during the month of October, then book flights to Illinois from Chennai during March instead. Flights to Illinois in March, while not as cheap as those in October, still average around ₹ 89,147.

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 ₹ 100,200 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 ₹ 79,883 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 15% 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	22h 05m
Direct flights	None

The fastest flight from Chennai to Illinois takes 22h 05m

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 March 2026, there are 5 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 ₹ 72,002	Free Cancellation	Rating 7.3 1,431 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 75,921	Free Cancellation	Rating 5.5 2,975 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 83,909	Free Cancellation	Rating 7.4 3,730 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 85,216	Free Cancellation	Rating 6.8 7,877 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 91,183	Free Cancellation	Rating 6.7 7,834 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 91,955	Free Cancellation	Rating 8.1 3,549 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.