What is the cheapest airline that flies from Tamil Nadu to Illinois?

Etihad Airways, Air India, and SWISS are the most popular carriers operating from Tamil Nadu to Illinois

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 22h 10m 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 26h 55m.

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 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.

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 March 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.

₹ 39,701 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.

21:55 - 08:35

MAA

ORD

21h 10m

1 stop

16:00 - 23:35

ORD

MAA

45h 05m

1 stop

₹ 72,418Multiple Airlines

Mon, 6 Apr - Tue, 8 Sep

21:40 - 08:35

MAA

ORD

21h 25m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 72,510Etihad Airways

Tue, 24 Mar - Tue, 7 Apr

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

14:00 - 08:25

ORD

MAA

31h 55m

1 stop

₹ 72,602Etihad Airways

Tue, 19 May - Wed, 16 Sep

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

14:00 - 02:50

ORD

MAA

26h 20m

1 stop

₹ 72,694Etihad Airways

Wed, 1 Apr - Thu, 2 Apr

03:55 - 08:35

MAA

ORD

39h 10m

1 stop

16:00 - 23:35

ORD

MAA

45h 05m

1 stop

₹ 72,786Multiple Airlines

Sun, 22 Mar - Wed, 19 Aug

05:35 - 23:59

MAA

STL

28h 54m

2 stops

18:13 - 05:35

STL

MAA

23h 52m

2 stops

₹ 89,052British 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

₹ 89,144British Airways

Sat, 13 Jun - Sun, 6 Dec

22:00 - 15:10

CJB

ORD

51h 40m

2 stops

17:10 - 08:10

ORD

CJB

28h 30m

2 stops

₹ 91,074KLM

Tue, 9 Jun - Tue, 14 Jul

09:10 - 11:10

CJB

ORD

36h 30m

3 stops

13:10 - 21:00

ORD

CJB

45h 20m

2 stops

₹ 104,400Air India

Tue, 21 Apr - Wed, 20 May

18:45 - 11:10

CJB

ORD

26h 55m

1 stop

13:10 - 18:10

ORD

CJB

42h 30m

1 stop

₹ 105,135Air India

Tue, 21 Apr - Mon, 18 May

Etihad Airways flights from Tamil Nadu to Illinois

Our best Etihad Airways deals on Tamil Nadu 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

₹ 72,510

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

₹ 72,602

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

₹ 72,694

Air France flights from Tamil Nadu to Illinois

Our best Air France deals on Tamil Nadu 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

₹ 75,818

Air France

20 May

MAA16:45Chennai

32h 55m

2 stops

ORD15:10Chicago O'Hare Intl

18 Aug

ORD17:10Chicago O'Hare Intl

26h 25m

2 stops

MAA06:05Chennai

₹ 78,116

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 6/4

21:55-08:35

1 stop21h 10m

Chicago O'Hare Intl

Tue 8/9

16:00-23:35

1 stop45h 05m

₹ 72,418

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

₹ 72,510

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

₹ 72,602

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

₹ 72,694

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 22/3

03:55-08:35

1 stop39h 10m

Chicago O'Hare Intl

Wed 19/8

16:00-23:35

1 stop45h 05m

₹ 72,786

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

₹ 89,052

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

₹ 89,144

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Tue 9/6

22:00-15:10

2 stops51h 40m

Chicago O'Hare Intl

Tue 14/7

17:10-08:10

2 stops28h 30m

₹ 91,074

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Tue 21/4

09:10-11:10

3 stops36h 30m

Chicago O'Hare Intl

Wed 20/5

13:10-21:00

2 stops45h 20m

₹ 104,400

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Tue 21/4

18:45-11:10

1 stop26h 55m

Chicago O'Hare Intl

Mon 18/5

13:10-18:10

1 stop42h 30m

₹ 105,135

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 ₹ 80,965. If you aren’t able to travel during the month of October, then book flights to Illinois from Tamil Nadu during March instead. Flights to Illinois in March, while not as cheap as those in October, still average around ₹ 86,663.

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 ₹ 97,537 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 ₹ 77,656 on momondo.

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

You could potentially save up to 4% 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	22h 10m
Direct flights	None

The fastest flight from Tamil Nadu to Illinois takes 22h 10m

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 March 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 ₹ 67,648	Free Cancellation	Rating 7.4 1,425 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 73,805	Free Cancellation	Rating 5.5 2,969 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 82,955	Free Cancellation	Rating 7.4 3,743 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 82,969	Free Cancellation	Rating 6.8 7,843 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 88,641	Free Cancellation	Rating 6.7 7,781 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 89,392	Free Cancellation	Rating 8.1 3,540 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.