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 50% 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?

SWISS, Air India, 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 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.

₹ 43,058 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 - 08:35

MAA

ORD

39h 00m

1 stop

14:00 - 08:25

ORD

MAA

31h 55m

1 stop

₹ 72,996Etihad Airways

Tue, 19 May - Wed, 16 Sep

21:55 - 08:35

MAA

ORD

21h 10m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 73,181Etihad Airways

Thu, 2 Apr - Thu, 23 Apr

21:40 - 08:35

MAA

ORD

21h 25m

1 stop

14:00 - 02:50

ORD

MAA

26h 20m

1 stop

₹ 73,366Etihad Airways

Thu, 26 Mar - Thu, 16 Apr

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 73,550Etihad Airways

Wed, 13 May - Thu, 13 Aug

21:55 - 08:35

MAA

ORD

21h 10m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 73,643Etihad Airways

Sat, 18 Apr - Fri, 1 May

16:05 - 08:35

MAA

ORD

27h 00m

1 stop

21:10 - 02:25

ORD

MAA

18h 45m

1 stop

₹ 73,828Etihad Airways

Wed, 10 Jun - Wed, 12 Aug

05:35 - 23:59

MAA

STL

28h 54m

2 stops

18:13 - 05:35

STL

MAA

23h 52m

2 stops

₹ 89,536British Airways

Fri, 12 Jun - Sun, 6 Dec

05:35 - 23:59

MAA

STL

28h 54m

2 stops

18:13 - 05:35

STL

MAA

23h 52m

2 stops

₹ 89,628British Airways

Sat, 13 Jun - Sun, 6 Dec

21:40 - 14:56

MAA

STL

27h 46m

2 stops

11:25 - 02:50

STL

MAA

28h 55m

2 stops

₹ 90,552Multiple Airlines

Tue, 24 Mar - Tue, 28 Apr

05:35 - 23:59

MAA

STL

28h 54m

2 stops

14:54 - 05:35

STL

MAA

27h 11m

2 stops

₹ 94,433British Airways

Fri, 12 Jun - Fri, 4 Dec

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

19 May

MAA04:05Chennai

39h 00m

1 stop

ORD08:35Chicago O'Hare Intl

16 Sept

ORD14:00Chicago O'Hare Intl

31h 55m

1 stop

MAA08:25Chennai

₹ 72,996

Etihad Airways

2 Apr

MAA21:55Chennai

21h 10m

1 stop

ORD08:35Chicago O'Hare Intl

23 Apr

ORD14:00Chicago O'Hare Intl

19h 40m

1 stop

MAA20:10Chennai

₹ 73,181

Etihad Airways

26 Mar

MAA21:40Chennai

21h 25m

1 stop

ORD08:35Chicago O'Hare Intl

16 Apr

ORD14:00Chicago O'Hare Intl

26h 20m

1 stop

MAA02:50Chennai

₹ 73,366

Qatar Airways flights from Chennai to Illinois

Our best Qatar Airways deals on Chennai to Illinois flight tickets

Qatar Airways

17 Mar

MAA03:40Chennai

22h 35m

1 stop

ORD15:45Chicago O'Hare Intl

9 Sept

ORD19:20Chicago O'Hare Intl

20h 50m

1 stop

MAA02:40Chennai

₹ 90,552

Qatar Airways

15 Mar

MAA03:40Chennai

30h 34m

2 stops

STL23:44Lambert-St Louis

13 May

STL11:06Lambert-St Louis

29h 04m

2 stops

MAA02:40Chennai

₹ 129,360

Qatar Airways

24 Mar

MAA03:40Chennai

30h 34m

2 stops

STL23:44Lambert-St Louis

27 Apr

STL14:33Lambert-St Louis

25h 37m

2 stops

MAA02:40Chennai

₹ 129,730

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 19/5

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Wed 16/9

14:00-08:25

1 stop31h 55m

₹ 72,996

Fastest return journey

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 2/4

21:55-08:35

1 stop21h 10m

Chicago O'Hare Intl

Thu 23/4

14:00-20:10

1 stop19h 40m

₹ 73,181

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 26/3

21:40-08:35

1 stop21h 25m

Chicago O'Hare Intl

Thu 16/4

14:00-02:50

1 stop26h 20m

₹ 73,366

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 13/5

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Thu 13/8

14:00-20:10

1 stop19h 40m

₹ 73,550

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sat 18/4

21:55-08:35

1 stop21h 10m

Chicago O'Hare Intl

Fri 1/5

14:00-20:10

1 stop19h 40m

₹ 73,643

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 10/6

16:05-08:35

1 stop27h 00m

Chicago O'Hare Intl

Wed 12/8

21:10-02:25

1 stop18h 45m

₹ 73,828

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Fri 12/6

05:35-23:59

2 stops28h 54m

Lambert-St Louis

Sun 6/12

18:13-05:35

2 stops23h 52m

₹ 89,536

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sat 13/6

05:35-23:59

2 stops28h 54m

Lambert-St Louis

Sun 6/12

18:13-05:35

2 stops23h 52m

₹ 89,628

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 24/3

21:40-14:56

2 stops27h 46m

Lambert-St Louis

Tue 28/4

11:25-02:50

2 stops28h 55m

₹ 90,552

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Fri 12/6

05:35-23:59

2 stops28h 54m

Lambert-St Louis

Fri 4/12

14:54-05:35

2 stops27h 11m

₹ 94,433

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 ₹ 81,404. 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 ₹ 87,133.

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 ₹ 97,937 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 ₹ 78,078 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 4% 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 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 ₹ 68,016	Free Cancellation	Rating 7.3 1,426 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 74,206	Free Cancellation	Rating 5.5 2,969 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 83,406	Free Cancellation	Rating 7.4 3,740 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 83,420	Free Cancellation	Rating 6.8 7,848 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 89,123	Free Cancellation	Rating 6.7 7,786 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 89,878	Free Cancellation	Rating 8.1 3,542 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.