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 43h 50m.

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

Japan Airlines, British Airways, and Qatar Airways 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 2 as of August 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.

₹ 59,098 Cheap Flights from Tamil Nadu to Illinois in 2026

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Find the cheapest flights from Tamil Nadu to Illinois

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

03:55 - 00:19MAA Chennai-STL Lambert-St Louis

30h 54m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl

08:13 - 08:05STL Lambert-St Louis-MAA Chennai

36h 22m2 stops Charlotte Douglas Abu Dhabi Zayed Intl

₹ 97,445Multiple Airlines

Mon, 26 Oct - Mon, 18 Jan

21:55 - 16:27MAA Chennai-STL Lambert-St Louis

29h 02m2 stops Abu Dhabi Zayed Intl Washington, D.C. Dulles Intl

07:29 - 20:10STL Lambert-St Louis-MAA Chennai

26h 11m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl

₹ 97,541Multiple Airlines

Thu, 24 Sep - Fri, 9 Oct

10:15 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

32h 50m1 stop Abu Dhabi Zayed Intl

20:25 - 02:50ORD Chicago O'Hare Intl-MAA Chennai

19h 55m1 stop Abu Dhabi Zayed Intl

₹ 102,705Etihad Airways

Thu, 3 Sep - Thu, 24 Sep

07:35 - 19:15MAA Chennai-ORD Chicago O'Hare Intl

23h 10m1 stop London Heathrow

16:26 - 05:35ORD Chicago O'Hare Intl-MAA Chennai

49h 39m2 stops New York John F Kennedy Intl London Heathrow

₹ 102,800British Airways

Fri, 12 Feb - Tue, 16 Feb

03:55 - 08:55MAA Chennai-ORD Chicago O'Hare Intl

39h 30m1 stop Abu Dhabi Zayed Intl

14:35 - 00:35ORD Chicago O'Hare Intl-MAA Chennai

22h 30m1 stop Hong Kong Intl

₹ 102,800Multiple Airlines

Sat, 31 Oct - Mon, 23 Nov

16:05 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

27h 00m1 stop Abu Dhabi Zayed Intl

13:10 - 15:05ORD Chicago O'Hare Intl-MAA Chennai

38h 25m1 stop Abu Dhabi Zayed Intl

₹ 102,992Etihad Airways

Sat, 5 Sep - Thu, 12 Nov

10:15 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

32h 50m1 stop Abu Dhabi Zayed Intl

13:10 - 15:05ORD Chicago O'Hare Intl-MAA Chennai

38h 25m1 stop Abu Dhabi Zayed Intl

₹ 102,992Etihad Airways

Fri, 4 Sep - Tue, 17 Nov

04:05 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

22h 20m1 stop Dubai Intl

19:45 - 02:15ORD Chicago O'Hare Intl-MAA Chennai

19h 00m1 stop Dubai Intl

₹ 107,390Emirates

Wed, 9 Sep - Wed, 18 Nov

22:05 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

28h 20m1 stop Dubai Intl

19:45 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

25h 00m1 stop Dubai Intl

₹ 107,390Emirates

Wed, 9 Sep - Mon, 16 Nov

22:05 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

28h 20m1 stop Dubai Intl

19:45 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

25h 00m1 stop Dubai Intl

₹ 107,390Emirates

Tue, 8 Sep - Mon, 16 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

23:30 - 12:35MAA Chennai-ORD Chicago O'Hare Intl

47h 35m2 stops Mumbai Chhatrapati Shivaji Intl Zurich

18:50 - 11:05ORD Chicago O'Hare Intl-MAA Chennai

52h 45m2 stops Zurich Mumbai Chhatrapati Shivaji Intl

₹ 130,437Multiple Airlines

Mon, 24 Aug - Wed, 11 Nov

16:45 - 07:45MAA Chennai-ORD Chicago O'Hare Intl

49h 30m2 stops New Delhi Indira Gandhi Intl Tokyo Narita

10:15 - 16:00ORD Chicago O'Hare Intl-MAA Chennai

43h 15m2 stops Tokyo Narita New Delhi Indira Gandhi Intl

₹ 132,541Japan Airlines

Sat, 22 Aug - Sat, 10 Oct

00:50 - 20:10MAA Chennai-ORD Chicago O'Hare Intl

29h 50m2 stops Hong Kong Intl Seattle/Tacoma Intl

06:00 - 23:35ORD Chicago O'Hare Intl-MAA Chennai

31h 05m2 stops Los Angeles Hong Kong Intl

₹ 136,940Multiple Airlines

Wed, 19 Aug - Sat, 22 Aug

00:50 - 15:00MAA Chennai-ORD Chicago O'Hare Intl

48h 40m2 stops Hong Kong Intl San Francisco

05:30 - 00:35ORD Chicago O'Hare Intl-MAA Chennai

31h 35m2 stops Los Angeles Hong Kong Intl

₹ 138,948Cathay Pacific

Sun, 23 Aug - Thu, 10 Dec

02:45 - 08:15MAA Chennai-ORD Chicago O'Hare Intl

40h 00m1 stop Addis Ababa Bole

10:15 - 01:15ORD Chicago O'Hare Intl-MAA Chennai

28h 30m1 stop Addis Ababa Bole

₹ 140,669Ethiopian Air

Fri, 21 Aug - Sat, 10 Oct

11:00 - 12:35MAA Chennai-ORD Chicago O'Hare Intl

36h 05m2 stops New Delhi Indira Gandhi Intl Zurich

20:25 - 20:20ORD Chicago O'Hare Intl-MAA Chennai

37h 25m1 stop Abu Dhabi Zayed Intl

₹ 144,494Multiple Airlines

Thu, 20 Aug - Sat, 22 Aug

21:55 - 16:35MAA Chennai-ORD Chicago O'Hare Intl

29h 10m1 stop Abu Dhabi Zayed Intl

20:25 - 02:50ORD Chicago O'Hare Intl-MAA Chennai

19h 55m1 stop Abu Dhabi Zayed Intl

₹ 146,598Etihad Airways

Thu, 20 Aug - Sat, 22 Aug

02:45 - 08:15MAA Chennai-ORD Chicago O'Hare Intl

40h 00m2 stops Addis Ababa Bole Rome Fiumicino

14:00 - 11:20ORD Chicago O'Hare Intl-MAA Chennai

34h 50m3 stops Abu Dhabi Zayed Intl Riyadh King Khaled Intl Hyderabad Rajiv Gandhi Intl

₹ 148,511Multiple Airlines

Fri, 21 Aug - Sat, 10 Oct

09:35 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

40h 50m2 stops Mumbai Chhatrapati Shivaji Intl Zurich

18:30 - 00:10ORD Chicago O'Hare Intl-MAA Chennai

19h 10m1 stop Frankfurt am Main

₹ 150,041Multiple Airlines

Sat, 22 Aug - Sat, 10 Oct

15:40 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

34h 45m1 stop Abu Dhabi Zayed Intl

13:10 - 15:05ORD Chicago O'Hare Intl-MAA Chennai

38h 25m1 stop Abu Dhabi Zayed Intl

₹ 150,710Etihad Airways

Mon, 24 Aug - Thu, 10 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

3 Sept

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

24 Sept

ORD20:25Chicago O'Hare Intl

19h 55m

1 stop

MAA02:50Chennai

₹ 102,705

Etihad Airways

4 Sept

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

17 Nov

ORD13:10Chicago O'Hare Intl

38h 25m

1 stop

MAA15:05Chennai

₹ 102,992

Etihad Airways

23 Sept

MAA04:05Chennai

27h 09m

2 stops

STL20:44Lambert-St Louis

10 Oct

STL15:05Lambert-St Louis

42h 35m

2 stops

MAA20:10Chennai

₹ 104,522

Oman Air flights from Tamil Nadu to Illinois

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

Oman Air

16 Sept

MAA08:15Chennai

42h 25m

2 stops

ORD16:10Chicago O'Hare Intl

16 Oct

ORD20:00Chicago O'Hare Intl

32h 10m

2 stops

MAA14:40Chennai

₹ 103,183

Oman Air

2 Oct

MAA08:15Chennai

42h 25m

2 stops

ORD16:10Chicago O'Hare Intl

9 Oct

ORD20:00Chicago O'Hare Intl

32h 10m

2 stops

MAA14:40Chennai

₹ 103,278

Oman Air

24 Sept

MAA08:15Chennai

42h 25m

2 stops

ORD16:10Chicago O'Hare Intl

5 Feb

ORD18:50Chicago O'Hare Intl

48h 20m

2 stops

MAA06:40Chennai

₹ 103,757

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiSt. Louis

MAA Chennai - STL Lambert-St Louis

MAASTL

Chennai

Mon 26/10

03:55-00:19

2 stops30h 54m

Lambert-St Louis

Mon 18/1

08:13-08:05

2 stops36h 22m

₹ 97,445

ChennaiSt. Louis

MAA Chennai - STL Lambert-St Louis

MAASTL

Chennai

Thu 24/9

21:55-16:27

2 stops29h 02m

Lambert-St Louis

Fri 9/10

07:29-20:10

2 stops26h 11m

₹ 97,541

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Thu 3/9

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Thu 24/9

20:25-02:50

1 stop19h 55m

₹ 102,705

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Fri 12/2

07:35-19:15

1 stop23h 10m

Chicago O'Hare Intl

Tue 16/2

16:26-05:35

2 stops49h 39m

₹ 102,800

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sat 31/10

03:55-08:55

1 stop39h 30m

Chicago O'Hare Intl

Mon 23/11

14:35-00:35

1 stop22h 30m

₹ 102,800

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sat 5/9

16:05-08:35

1 stop27h 00m

Chicago O'Hare Intl

Thu 12/11

13:10-15:05

1 stop38h 25m

₹ 102,992

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Fri 4/9

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Tue 17/11

13:10-15:05

1 stop38h 25m

₹ 102,992

Fastest return journey

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Wed 9/9

04:05-15:55

1 stop22h 20m

Chicago O'Hare Intl

Wed 18/11

19:45-02:15

1 stop19h 00m

₹ 107,390

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Wed 9/9

22:05-15:55

1 stop28h 20m

Chicago O'Hare Intl

Mon 16/11

19:45-08:15

1 stop25h 00m

₹ 107,390

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Tue 8/9

22:05-15:55

1 stop28h 20m

Chicago O'Hare Intl

Mon 16/11

19:45-08:15

1 stop25h 00m

₹ 107,390

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, April 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 ₹ 87,595. If you aren’t able to travel during the month of April, then book flights to Illinois from Tamil Nadu during October instead. Flights to Illinois in October, while not as cheap as those in April, still average around ₹ 88,265.

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 ₹ 97,692 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 ₹ 85,109 on momondo.

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

You could potentially save up to 17% 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

Best price found	₹ 59,098
Fastest flight time	21h 10m
Direct flights	None

The best one-way flight to Illinois from Tamil Nadu in the past 72 hours is ₹ 59,098. The best return flight deal from Tamil Nadu to Illinois found on momondo in the last 72 hours is ₹ 97,445.

The fastest flight from Tamil Nadu to Illinois takes 21h 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 2 as of August 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 ₹ 74,059	Free Cancellation	Rating 7.3 1,504 reviews		Search Etihad Airways flights
Emirates	PriceFrom ₹ 92,825	Free Cancellation	Rating 8.1 3,658 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.