How long is the flight from Tamil Nadu to Illinois?

The flight from Tamil Nadu to Illinois depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Chennai (a popular airport in Tamil Nadu) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 21h 25m on average. If you fly from Coimbatore (another popular airport in Tamil Nadu) to Chicago O'Hare Intl Airport, then the average flight time is 33h 10m.

Which airlines fly to Illinois?

Etihad Airways, British Airways and Emirates are the top three most popular airlines that fly to Illinois from Tamil Nadu according to our data. Etihad Airways is the first choice among our users, with 40% 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 Tamil Nadu to Illinois?

Air India and IndiGo are the most popular carriers operating from Tamil Nadu to Illinois

When did momondo last update prices for flights from Tamil Nadu to Illinois?

Prices for flights from Tamil Nadu to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Tamil Nadu to Illinois?

The number of operators available for flights from Tamil Nadu to Illinois is 6 as of January 2026.

How old do you have to be to fly from Tamil Nadu to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Tamil Nadu to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

₹ 41,590 Cheap Flights from Tamil Nadu to Illinois in 2026

1 adult

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Find the cheapest flights from Tamil Nadu to Illinois

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

03:55 - 07:35

MAA

ORD

39h 10m1 stop

14:10 - 08:10

ORD

MAA

31h 30m1 stop

₹ 66,219Etihad Airways

Thu, 5 Feb - Fri, 20 Mar

10:00 - 07:35

MAA

ORD

33h 05m1 stop

14:10 - 14:35

ORD

MAA

37h 55m1 stop

₹ 66,490Etihad Airways

Fri, 6 Feb - Sat, 28 Mar

16:10 - 07:35

MAA

ORD

26h 55m1 stop

13:10 - 19:55

ORD

MAA

19h 15m1 stop

₹ 66,580Etihad Airways

Thu, 29 Jan - Thu, 19 Feb

16:10 - 07:35

MAA

ORD

26h 55m1 stop

13:10 - 19:55

ORD

MAA

19h 15m1 stop

₹ 66,761Etihad Airways

Thu, 29 Jan - Thu, 19 Feb

21:40 - 11:30

MAA

ORD

25h 20m2 stops

13:10 - 21:00

ORD

MAA

21h 20m1 stop

₹ 68,294Air India

Sat, 7 Mar - Fri, 31 Jul

10:05 - 08:45

CJB

ORD

33h 10m2 stops

14:00 - 23:05

ORD

CJB

22h 35m2 stops

₹ 85,886Multiple Airlines

Wed, 1 Apr - Tue, 7 Apr

07:35 - 08:45

CJB

ORD

35h 40m3 stops

14:00 - 23:05

ORD

CJB

22h 35m2 stops

₹ 85,977Multiple Airlines

Wed, 1 Apr - Tue, 7 Apr

20:55 - 13:50

CJB

ORD

52h 25m2 stops

18:25 - 13:40

ORD

CJB

31h 45m2 stops

₹ 116,650British Airways

Wed, 4 Feb - Sun, 8 Feb

20:55 - 13:50

CJB

ORD

52h 25m2 stops

18:25 - 11:15

ORD

CJB

29h 20m2 stops

₹ 117,011British Airways

Wed, 4 Feb - Sun, 8 Feb

09:10 - 11:10

CJB

ORD

36h 30m3 stops

13:10 - 08:10

ORD

CJB

32h 30m2 stops

₹ 405,435Air India

Sun, 29 Mar - Sun, 31 May

British Airways flights from Tamil Nadu to Illinois

Our best British Airways deals on Tamil Nadu to Illinois flight tickets

British Airways

4 Feb

CJB20:55Coimbatore Peelamedu

52h 25m

2 stops

ORD13:50Chicago O'Hare Intl

8 Feb

ORD18:25Chicago O'Hare Intl

31h 45m

2 stops

CJB13:40Coimbatore Peelamedu

₹ 116,650

British Airways

4 Feb

CJB20:55Coimbatore Peelamedu

52h 25m

2 stops

ORD13:50Chicago O'Hare Intl

8 Feb

ORD18:25Chicago O'Hare Intl

29h 20m

2 stops

CJB11:15Coimbatore Peelamedu

₹ 117,011

British Airways

4 Feb

CJB13:55Coimbatore Peelamedu

61h 00m

2 stops

ORD15:25Chicago O'Hare Intl

8 Feb

ORD18:25Chicago O'Hare Intl

31h 45m

2 stops

CJB13:40Coimbatore Peelamedu

₹ 117,192

KLM flights from Tamil Nadu to Illinois

Our best KLM deals on Tamil Nadu to Illinois flight tickets

KLM

15 Jan

MAA18:10Chennai

31h 40m

2 stops

ORD14:20Chicago O'Hare Intl

31 Mar

ORD16:20Chicago O'Hare Intl

31h 15m

2 stops

MAA10:05Chennai

₹ 278,680

KLM

15 Jan

MAA21:05Chennai

29h 35m

2 stops

ORD15:10Chicago O'Hare Intl

1 Apr

ORD16:50Chicago O'Hare Intl

25h 50m

2 stops

MAA05:10Chennai

₹ 278,860

KLM

15 Jan

MAA21:05Chennai

29h 35m

2 stops

ORD15:10Chicago O'Hare Intl

7 Apr

ORD16:20Chicago O'Hare Intl

31h 15m

2 stops

MAA10:05Chennai

₹ 279,221

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 5/2

03:55-07:35

1 stop39h 10m

Chicago O'Hare Intl

Fri 20/3

14:10-08:10

1 stop31h 30m

₹ 66,219

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Fri 6/2

10:00-07:35

1 stop33h 05m

Chicago O'Hare Intl

Sat 28/3

14:10-14:35

1 stop37h 55m

₹ 66,490

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 29/1

16:10-07:35

1 stop26h 55m

Chicago O'Hare Intl

Thu 19/2

13:10-19:55

1 stop19h 15m

₹ 66,580

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 29/1

16:10-07:35

1 stop26h 55m

Chicago O'Hare Intl

Thu 19/2

13:10-19:55

1 stop19h 15m

₹ 66,760

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sat 7/3

21:40-11:30

2 stops25h 20m

Chicago O'Hare Intl

Fri 31/7

13:10-21:00

1 stop21h 20m

₹ 68,294

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Wed 1/4

10:05-08:45

2 stops33h 10m

Chicago O'Hare Intl

Tue 7/4

14:00-23:05

2 stops22h 35m

₹ 85,886

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Wed 1/4

07:35-08:45

3 stops35h 40m

Chicago O'Hare Intl

Tue 7/4

14:00-23:05

2 stops22h 35m

₹ 85,977

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Wed 4/2

20:55-13:50

2 stops52h 25m

Chicago O'Hare Intl

Sun 8/2

18:25-13:40

2 stops31h 45m

₹ 116,650

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Wed 4/2

20:55-13:50

2 stops52h 25m

Chicago O'Hare Intl

Sun 8/2

18:25-11:15

2 stops29h 20m

₹ 117,011

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Sun 29/3

09:10-11:10

3 stops36h 30m

Chicago O'Hare Intl

Sun 31/5

13:10-08:10

2 stops32h 30m

₹ 405,435

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 Tamil Nadu 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

Other information

What is the cheapest month to fly to Illinois?

In general, October is the cheapest month to fly from Tamil Nadu to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 79,481. If you aren’t able to travel during the month of October, then book flights to Illinois from Tamil Nadu during September instead. Flights to Illinois in September, while not as cheap as those in October, still average around ₹ 91,209.

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Tamil Nadu when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around ₹ 97,698 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 Tamil Nadu for as low as ₹ 76,233 on momondo.

Can stopping save me money on Tamil Nadu to Illinois flights?

You could potentially save up to 21% on your flight if you consider stops on a Tamil Nadu to Illinois flight.

Cheap Tamil Nadu to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Tamil Nadu to Illinois

Fastest flight time	21h 25m
Direct flights	None

The fastest flight from Tamil Nadu to Illinois takes 21h 25m

There are no direct flights from Tamil Nadu to Illinois. There are no popular flight routes from Tamil Nadu to Illinois.

Search flight deals

When did momondo last update prices for flights from Tamil Nadu to Illinois?
Prices for flights from Tamil Nadu to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Tamil Nadu to Illinois?
The number of operators available for flights from Tamil Nadu to Illinois is 6 as of January 2026.
How old do you have to be to fly from Tamil Nadu to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Tamil Nadu to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Tamil Nadu to Illinois

Compare and see reviews for airlines that fly from Tamil Nadu to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Etihad Airways	PriceFrom ₹ 70,837	Free Cancellation	Rating 7.3 1,366 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 72,452	Free Cancellation	Rating 5.5 2,974 reviews	Search Air India flights
Lufthansa	PriceFrom ₹ 81,449	Free Cancellation	Rating 6.8 7,705 reviews	Search Lufthansa flights
Qatar Airways	PriceFrom ₹ 81,955	Free Cancellation	Rating 7.4 3,702 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 87,666	Free Cancellation	Rating 6.7 7,666 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 93,987	Free Cancellation	Rating 8.1 3,462 reviews	Search Emirates flights

Why use momondo?

Why should I use momondo to find a flight deal from Tamil Nadu to Illinois?

It is quick and easy to find Tamil Nadu to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Tamil Nadu to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Tamil Nadu which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Tamil Nadu to Illinois?

Once all potential Tamil Nadu to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Tamil Nadu to Illinois right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Tamil Nadu to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.