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 26h 30m 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 20m.

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 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.

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

Qatar Airways, Etihad Airways, and Oman Air 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 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.

₹ 38,330 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.

16:35 - 08:35

MAA

ORD

26h 30m

1 stop

14:00 - 02:25

ORD

MAA

25h 55m

1 stop

₹ 71,015Etihad Airways

Thu, 23 Apr - Mon, 13 Jul

16:35 - 08:35

MAA

ORD

26h 30m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 71,197Etihad Airways

Sat, 16 May - Mon, 17 Aug

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

14:20 - 08:45

ORD

MAA

31h 55m

2 stops

₹ 71,652Multiple Airlines

Thu, 11 Jun - Fri, 11 Sep

03:40 - 15:45

MAA

ORD

22h 35m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 72,199Multiple Airlines

Wed, 18 Mar - Thu, 9 Apr

21:40 - 11:10

CJB

ORD

48h 00m

3 stops

13:10 - 08:10

ORD

CJB

32h 30m

2 stops

₹ 85,856Air India

Mon, 13 Apr - Mon, 20 Apr

05:35 - 19:30

MAA

STL

24h 25m

1 stop

16:18 - 03:30

STL

MAA

24h 42m

2 stops

₹ 100,332British Airways

Sun, 26 Apr - Sun, 23 Aug

05:35 - 19:30

MAA

STL

24h 25m

1 stop

13:37 - 03:30

STL

MAA

27h 23m

2 stops

₹ 100,423British Airways

Sun, 26 Apr - Sun, 23 Aug

01:55 - 13:25

MAA

STL

22h 00m

1 stop

15:30 - 00:10

STL

MAA

22h 10m

1 stop

₹ 114,899Lufthansa

Thu, 30 Apr - Fri, 11 Sep

01:55 - 13:25

MAA

STL

22h 00m

1 stop

08:44 - 00:10

STL

MAA

28h 56m

2 stops

₹ 114,990Lufthansa

Thu, 30 Apr - Sat, 12 Sep

21:40 - 11:10

CJB

ORD

48h 00m

3 stops

13:10 - 08:10

ORD

CJB

32h 30m

2 stops

₹ 120,817Air India

Mon, 30 Mar - Mon, 6 Apr

Air France flights from Tamil Nadu to Illinois

Our best Air France deals on Tamil Nadu to Illinois flight tickets

Air France

27 May

MAA19:05Chennai

33h 45m

2 stops

ORD18:20Chicago O'Hare Intl

27 Aug

ORD17:10Chicago O'Hare Intl

28h 40m

2 stops

MAA08:20Chennai

₹ 76,387

Air France

8 Mar

CJB22:30Coimbatore Peelamedu

28h 10m

2 stops

ORD16:10Chicago O'Hare Intl

31 Mar

ORD17:10Chicago O'Hare Intl

27h 25m

2 stops

CJB07:05Coimbatore Peelamedu

₹ 103,245

Qatar Airways flights from Tamil Nadu to Illinois

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

Qatar Airways

18 May

MAA03:55Chennai

21h 40m

1 stop

ORD15:05Chicago O'Hare Intl

27 Aug

ORD19:20Chicago O'Hare Intl

20h 50m

1 stop

MAA02:40Chennai

₹ 77,570

Qatar Airways

26 Mar

MAA03:40Chennai

43h 34m

2 stops

STL12:44Lambert-St Louis

3 Apr

STL14:00Lambert-St Louis

26h 20m

2 stops

MAA02:50Chennai

₹ 131,651

Qatar Airways

3 May

MAA03:55Chennai

29h 34m

2 stops

STL22:59Lambert-St Louis

8 Sept

STL11:48Lambert-St Louis

28h 32m

2 stops

MAA02:50Chennai

₹ 131,833

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 23/4

16:35-08:35

1 stop26h 30m

Chicago O'Hare Intl

Mon 13/7

14:00-02:25

1 stop25h 55m

₹ 71,015

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sat 16/5

16:35-08:35

1 stop26h 30m

Chicago O'Hare Intl

Mon 17/8

14:00-20:10

1 stop19h 40m

₹ 71,197

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 11/6

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Fri 11/9

14:20-08:45

2 stops31h 55m

₹ 71,652

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 18/3

03:40-15:45

1 stop22h 35m

Chicago O'Hare Intl

Thu 9/4

14:00-20:10

1 stop19h 40m

₹ 72,199

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Mon 13/4

21:40-11:10

3 stops48h 00m

Chicago O'Hare Intl

Mon 20/4

13:10-08:10

2 stops32h 30m

₹ 85,856

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sun 26/4

05:35-19:30

1 stop24h 25m

Lambert-St Louis

Sun 23/8

16:18-03:30

2 stops24h 42m

₹ 100,332

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sun 26/4

05:35-19:30

1 stop24h 25m

Lambert-St Louis

Sun 23/8

13:37-03:30

2 stops27h 23m

₹ 100,423

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 30/4

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Fri 11/9

15:30-00:10

1 stop22h 10m

₹ 114,899

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 30/4

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Sat 12/9

08:44-00:10

2 stops28h 56m

₹ 114,990

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Mon 30/3

21:40-11:10

3 stops48h 00m

Chicago O'Hare Intl

Mon 6/4

13:10-08:10

2 stops32h 30m

₹ 120,817

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 ₹ 80,211. If you aren’t able to travel during the month of October, then book flights to Illinois from Tamil Nadu during February instead. Flights to Illinois in February, while not as cheap as those in October, still average around ₹ 87,494.

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 ₹ 97,320 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 ₹ 85,582 on momondo.

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

You could potentially save up to 25% 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	26h 30m
Direct flights	None

The fastest flight from Tamil Nadu to Illinois takes 26h 30m

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 ₹ 67,018	Free Cancellation	Rating 7.3 1,422 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 73,117	Free Cancellation	Rating 5.5 2,969 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 82,183	Free Cancellation	Rating 7.4 3,745 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 82,196	Free Cancellation	Rating 6.8 7,818 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 87,816	Free Cancellation	Rating 6.7 7,772 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 88,560	Free Cancellation	Rating 8.1 3,535 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.