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 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 25h 35m.

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

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

Which airlines fly to Illinois?

Etihad Airways, Air India and British Airways 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 55% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 5 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 5 as of April 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.

₹ 48,752 Cheap Flights from Tamil Nadu to Illinois in 2026

1 adult

Discover deals from 900+ travel sites with momondo.

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 - 15:40

MAA

ORD

28h 15m

1 stop

21:10 - 08:25

ORD

MAA

24h 45m

1 stop

₹ 79,034Etihad Airways

Mon, 15 Jun - Mon, 7 Sep

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

21:10 - 08:25

ORD

MAA

24h 45m

1 stop

₹ 80,628Etihad Airways

Mon, 18 May - Wed, 9 Sep

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

21:10 - 08:25

ORD

MAA

24h 45m

1 stop

₹ 80,721Etihad Airways

Mon, 18 May - Wed, 5 Aug

17:30 - 08:35

CJB

ORD

25h 35m

2 stops

14:00 - 07:20

ORD

CJB

30h 50m

3 stops

₹ 103,972Multiple Airlines

Wed, 3 Jun - Wed, 10 Jun

16:00 - 08:35

CJB

ORD

27h 05m

3 stops

14:00 - 07:20

ORD

CJB

30h 50m

3 stops

₹ 106,222Multiple Airlines

Wed, 3 Jun - Wed, 10 Jun

18:45 - 11:10

CJB

ORD

26h 55m

2 stops

14:30 - 08:10

ORD

CJB

30h 10m

2 stops

₹ 108,754Air India

Tue, 8 Sep - Mon, 2 Nov

09:00 - 11:10

CJB

ORD

36h 40m

3 stops

14:30 - 08:10

ORD

CJB

30h 10m

2 stops

₹ 113,722Air India

Tue, 8 Sep - Mon, 2 Nov

04:25 - 22:58

MAA

STL

29h 03m

2 stops

08:35 - 02:50

STL

MAA

31h 45m

2 stops

₹ 125,629Qatar Airways

Tue, 16 Jun - Tue, 11 Aug

04:20 - 19:20

MAA

STL

25h 30m

2 stops

14:45 - 02:40

STL

MAA

25h 25m

2 stops

₹ 127,785Qatar Airways

Thu, 2 Jul - Sat, 12 Sep

22:05 - 21:16

MAA

STL

33h 41m

2 stops

15:15 - 08:15

STL

MAA

29h 30m

2 stops

₹ 132,754Emirates

Thu, 18 Jun - Tue, 8 Dec

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Etihad Airways flights from Tamil Nadu to Illinois

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

Etihad Airways

15 Jun

MAA21:55Chennai

28h 15m

1 stop

ORD15:40Chicago O'Hare Intl

7 Sept

ORD21:10Chicago O'Hare Intl

24h 45m

1 stop

MAA08:25Chennai

₹ 79,034

Etihad Airways

18 May

MAA04:05Chennai

39h 00m

1 stop

ORD08:35Chicago O'Hare Intl

9 Sept

ORD21:10Chicago O'Hare Intl

24h 45m

1 stop

MAA08:25Chennai

₹ 80,628

Etihad Airways

18 May

MAA04:05Chennai

39h 00m

1 stop

ORD08:35Chicago O'Hare Intl

5 Aug

ORD21:10Chicago O'Hare Intl

24h 45m

1 stop

MAA08:25Chennai

₹ 80,721

Emirates flights from Tamil Nadu to Illinois

Our best Emirates deals on Tamil Nadu to Illinois flight tickets

Emirates

7 May

MAA09:50Chennai

40h 25m

1 stop

ORD15:45Chicago O'Hare Intl

12 May

ORD20:35Chicago O'Hare Intl

37h 25m

1 stop

MAA20:30Chennai

₹ 91,034

Emirates

7 May

MAA09:50Chennai

40h 25m

1 stop

ORD15:45Chicago O'Hare Intl

10 May

ORD20:35Chicago O'Hare Intl

25h 00m

1 stop

MAA08:05Chennai

₹ 91,972

Emirates

29 Apr

MAA04:05Chennai

22h 10m

1 stop

ORD15:45Chicago O'Hare Intl

10 Sept

ORD20:35Chicago O'Hare Intl

19h 25m

1 stop

MAA02:30Chennai

₹ 96,847

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 15/6

21:55-15:40

1 stop28h 15m

Chicago O'Hare Intl

Mon 7/9

21:10-08:25

1 stop24h 45m

₹ 79,034

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 18/5

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Wed 9/9

21:10-08:25

1 stop24h 45m

₹ 80,628

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 18/5

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Wed 5/8

21:10-08:25

1 stop24h 45m

₹ 80,721

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Wed 3/6

17:30-08:35

2 stops25h 35m

Chicago O'Hare Intl

Wed 10/6

14:00-07:20

3 stops30h 50m

₹ 103,972

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Wed 3/6

16:00-08:35

3 stops27h 05m

Chicago O'Hare Intl

Wed 10/6

14:00-07:20

3 stops30h 50m

₹ 106,222

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Tue 8/9

18:45-11:10

2 stops26h 55m

Chicago O'Hare Intl

Mon 2/11

14:30-08:10

2 stops30h 10m

₹ 108,754

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Tue 8/9

09:00-11:10

3 stops36h 40m

Chicago O'Hare Intl

Mon 2/11

14:30-08:10

2 stops30h 10m

₹ 113,722

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 16/6

04:25-22:58

2 stops29h 03m

Lambert-St Louis

Tue 11/8

08:35-02:50

2 stops31h 45m

₹ 125,629

Fastest return journey

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 2/7

04:20-19:20

2 stops25h 30m

Lambert-St Louis

Sat 12/9

14:45-02:40

2 stops25h 25m

₹ 127,785

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 18/6

22:05-21:16

2 stops33h 41m

Lambert-St Louis

Tue 8/12

15:15-08:15

2 stops29h 30m

₹ 132,754

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 ₹ 82,596. 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 ₹ 85,878.

How far in advance should I book a flight from Tamil Nadu 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 ₹ 96,245 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 ₹ 84,940 on momondo.

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

You could potentially save up to 15% 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

Frequently asked questions about flying 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 5 as of April 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 ₹ 71,406	Free Cancellation	Rating 7.3 1,434 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 75,292	Free Cancellation	Rating 5.5 2,967 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 83,214	Free Cancellation	Rating 7.4 3,729 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 90,428	Free Cancellation	Rating 6.7 7,909 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 91,005	Free Cancellation	Rating 8.1 3,560 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.