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

Etihad Airways, Air India, and Qatar Airways are the most popular carriers operating from Chennai to Illinois

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 48% 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.

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 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.

₹ 39,646 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.

21:40 - 08:35

MAA

ORD

21h 25m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 72,409Etihad Airways

Tue, 24 Mar - Tue, 7 Apr

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

14:00 - 02:50

ORD

MAA

26h 20m

1 stop

₹ 72,592Etihad Airways

Wed, 1 Apr - Thu, 2 Apr

15:25 - 08:35

MAA

ORD

27h 40m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 72,684Etihad Airways

Thu, 19 Mar - Thu, 9 Apr

16:35 - 08:35

MAA

ORD

26h 30m

1 stop

16:00 - 23:35

ORD

MAA

45h 05m

1 stop

₹ 72,868Multiple Airlines

Wed, 6 May - Tue, 18 Aug

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

16:00 - 23:35

ORD

MAA

45h 05m

1 stop

₹ 73,418Multiple Airlines

Mon, 25 May - Wed, 26 Aug

03:55 - 08:35

MAA

ORD

39h 10m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 73,510Etihad Airways

Mon, 23 Mar - Mon, 6 Apr

01:55 - 13:25

MAA

STL

22h 00m

1 stop

15:30 - 00:10

STL

MAA

22h 10m

1 stop

₹ 117,745Lufthansa

Tue, 5 May - Sun, 16 Aug

01:55 - 22:45

MAA

STL

31h 20m

2 stops

15:30 - 00:10

STL

MAA

22h 10m

1 stop

₹ 118,754Lufthansa

Tue, 5 May - Sun, 16 Aug

04:55 - 19:30

MAA

STL

49h 05m

2 stops

12:27 - 03:30

STL

MAA

28h 33m

2 stops

₹ 128,758British Airways

Thu, 23 Apr - Sun, 26 Apr

00:50 - 19:33

MAA

STL

29h 13m

2 stops

18:11 - 23:35

STL

MAA

42h 54m

2 stops

₹ 159,685Cathay Pacific

Wed, 22 Apr - Sun, 26 Apr

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

24 Mar

MAA21:40Chennai

21h 25m

1 stop

ORD08:35Chicago O'Hare Intl

7 Apr

ORD14:00Chicago O'Hare Intl

19h 40m

1 stop

MAA20:10Chennai

₹ 72,409

Etihad Airways

1 Apr

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

2 Apr

ORD14:00Chicago O'Hare Intl

26h 20m

1 stop

MAA02:50Chennai

₹ 72,592

Etihad Airways

19 Mar

MAA15:25Chennai

27h 40m

1 stop

ORD08:35Chicago O'Hare Intl

9 Apr

ORD14:00Chicago O'Hare Intl

19h 40m

1 stop

MAA20:10Chennai

₹ 72,684

Air France flights from Chennai to Illinois

Our best Air France deals on Chennai to Illinois flight tickets

Air France

20 May

MAA14:30Chennai

35h 10m

2 stops

ORD15:10Chicago O'Hare Intl

18 Aug

ORD17:10Chicago O'Hare Intl

30h 25m

2 stops

MAA10:05Chennai

₹ 75,713

Air France

1 May

MAA15:45Chennai

33h 55m

2 stops

ORD15:10Chicago O'Hare Intl

8 May

ORD17:10Chicago O'Hare Intl

32h 10m

2 stops

MAA11:50Chennai

₹ 77,915

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 24/3

21:40-08:35

1 stop21h 25m

Chicago O'Hare Intl

Tue 7/4

14:00-20:10

1 stop19h 40m

₹ 72,409

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 1/4

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Thu 2/4

14:00-02:50

1 stop26h 20m

₹ 72,592

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 19/3

15:25-08:35

1 stop27h 40m

Chicago O'Hare Intl

Thu 9/4

14:00-20:10

1 stop19h 40m

₹ 72,684

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 6/5

16:35-08:35

1 stop26h 30m

Chicago O'Hare Intl

Tue 18/8

16:00-23:35

1 stop45h 05m

₹ 72,868

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 25/5

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Wed 26/8

16:00-23:35

1 stop45h 05m

₹ 73,418

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 23/3

03:55-08:35

1 stop39h 10m

Chicago O'Hare Intl

Mon 6/4

14:00-20:10

1 stop19h 40m

₹ 73,510

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 5/5

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Sun 16/8

15:30-00:10

1 stop22h 10m

₹ 117,745

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 5/5

01:55-22:45

2 stops31h 20m

Lambert-St Louis

Sun 16/8

15:30-00:10

1 stop22h 10m

₹ 118,754

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 23/4

04:55-19:30

2 stops49h 05m

Lambert-St Louis

Sun 26/4

12:27-03:30

2 stops28h 33m

₹ 128,758

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 22/4

00:50-19:33

2 stops29h 13m

Lambert-St Louis

Sun 26/4

18:11-23:35

2 stops42h 54m

₹ 159,685

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 ₹ 80,852. 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 ₹ 88,194.

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 ₹ 97,899 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 ₹ 86,267 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 25% 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 40m
Direct flights	None

The fastest flight from Chennai to Illinois takes 21h 40m

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 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 ₹ 67,554	Free Cancellation	Rating 7.3 1,424 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 73,702	Free Cancellation	Rating 5.5 2,972 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 82,840	Free Cancellation	Rating 7.4 3,746 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 82,854	Free Cancellation	Rating 6.8 7,833 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 88,518	Free Cancellation	Rating 6.7 7,779 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 89,268	Free Cancellation	Rating 8.1 3,539 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.