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

Air India, Qatar Airways, and Emirates 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 37h 50m.

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.

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.

₹ 40,652 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.

10:00 - 07:35

MAA

ORD

33h 05m

1 stop

14:10 - 02:30

ORD

MAA

25h 50m

1 stop

₹ 66,275Etihad Airways

Mon, 2 Mar - Mon, 9 Mar

10:00 - 07:35

MAA

ORD

33h 05m

1 stop

14:10 - 15:10

ORD

MAA

38h 30m

1 stop

₹ 66,909Etihad Airways

Fri, 20 Feb - Thu, 19 Mar

21:40 - 07:35

MAA

ORD

21h 25m

1 stop

14:10 - 19:55

ORD

MAA

19h 15m

1 stop

₹ 67,090Etihad Airways

Mon, 2 Mar - Mon, 9 Mar

10:15 - 08:45

MAA

ORD

33h 00m

1 stop

14:00 - 14:35

ORD

MAA

38h 05m

1 stop

₹ 67,271Etihad Airways

Tue, 7 Apr - Wed, 2 Sep

16:10 - 07:35

MAA

ORD

26h 55m

1 stop

13:10 - 19:55

ORD

MAA

19h 15m

1 stop

₹ 67,361Etihad Airways

Thu, 5 Feb - Thu, 26 Feb

21:40 - 07:35

MAA

ORD

21h 25m

1 stop

13:10 - 19:55

ORD

MAA

19h 15m

1 stop

₹ 67,543Etihad Airways

Thu, 5 Feb - Thu, 26 Feb

10:00 - 17:53

MAA

STL

42h 23m

2 stops

09:45 - 20:10

STL

MAA

23h 55m

2 stops

₹ 89,363Multiple Airlines

Wed, 11 Mar - Wed, 12 Aug

20:55 - 13:50

CJB

ORD

52h 25m

2 stops

18:25 - 13:40

ORD

CJB

31h 45m

2 stops

₹ 110,096British Airways

Wed, 4 Feb - Sun, 8 Feb

20:55 - 15:25

CJB

ORD

54h 00m

2 stops

18:25 - 15:35

ORD

CJB

33h 40m

2 stops

₹ 110,187British Airways

Wed, 4 Feb - Sun, 8 Feb

01:50 - 14:55

MAA

STL

23h 35m

1 stop

08:25 - 00:10

STL

MAA

29h 15m

2 stops

₹ 117,158Lufthansa

Tue, 10 Mar - Wed, 12 Aug

Air India flights from Tamil Nadu to Illinois

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

Air India

7 Feb

MAA21:40Chennai

25h 20m

2 stops

ORD11:30Chicago O'Hare Intl

6 Mar

ORD13:30Chicago O'Hare Intl

31h 55m

1 stop

MAA08:55Chennai

₹ 68,448

Air India

25 Apr

MAA20:40Chennai

25h 00m

2 stops

ORD11:10Chicago O'Hare Intl

29 Jul

ORD13:10Chicago O'Hare Intl

23h 00m

1 stop

MAA22:40Chennai

₹ 68,538

Air India

14 Feb

MAA21:40Chennai

25h 20m

2 stops

ORD11:30Chicago O'Hare Intl

15 Jul

ORD13:10Chicago O'Hare Intl

23h 00m

1 stop

MAA22:40Chennai

₹ 68,720

Etihad Airways flights from Tamil Nadu to Illinois

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

Etihad Airways

2 Mar

MAA10:00Chennai

33h 05m

1 stop

ORD07:35Chicago O'Hare Intl

9 Mar

ORD14:10Chicago O'Hare Intl

25h 50m

1 stop

MAA02:30Chennai

₹ 66,275

Etihad Airways

20 Feb

MAA10:00Chennai

33h 05m

1 stop

ORD07:35Chicago O'Hare Intl

19 Mar

ORD14:10Chicago O'Hare Intl

38h 30m

1 stop

MAA15:10Chennai

₹ 66,909

Etihad Airways

2 Mar

MAA21:40Chennai

21h 25m

1 stop

ORD07:35Chicago O'Hare Intl

9 Mar

ORD14:10Chicago O'Hare Intl

19h 15m

1 stop

MAA19:55Chennai

₹ 67,090

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 2/3

10:00-07:35

1 stop33h 05m

Chicago O'Hare Intl

Mon 9/3

14:10-02:30

1 stop25h 50m

₹ 66,275

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Fri 20/2

10:00-07:35

1 stop33h 05m

Chicago O'Hare Intl

Thu 19/3

14:10-15:10

1 stop38h 30m

₹ 66,909

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 2/3

21:40-07:35

1 stop21h 25m

Chicago O'Hare Intl

Mon 9/3

14:10-19:55

1 stop19h 15m

₹ 67,090

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 7/4

10:15-08:45

1 stop33h 00m

Chicago O'Hare Intl

Wed 2/9

14:00-14:35

1 stop38h 05m

₹ 67,271

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 5/2

16:10-07:35

1 stop26h 55m

Chicago O'Hare Intl

Thu 26/2

13:10-19:55

1 stop19h 15m

₹ 67,361

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 5/2

21:40-07:35

1 stop21h 25m

Chicago O'Hare Intl

Thu 26/2

13:10-19:55

1 stop19h 15m

₹ 67,543

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 11/3

10:00-17:53

2 stops42h 23m

Lambert-St Louis

Wed 12/8

09:45-20:10

2 stops23h 55m

₹ 89,363

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

₹ 110,096

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Wed 4/2

20:55-15:25

2 stops54h 00m

Chicago O'Hare Intl

Sun 8/2

18:25-15:35

2 stops33h 40m

₹ 110,187

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 10/3

01:50-14:55

1 stop23h 35m

Lambert-St Louis

Wed 12/8

08:25-00:10

2 stops29h 15m

₹ 117,158

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 ₹ 79,765. 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 ₹ 91,536.

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 ₹ 97,255 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 ₹ 76,506 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	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 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 ₹ 70,118	Free Cancellation	Rating 7.3 1,371 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 72,711	Free Cancellation	Rating 5.5 2,975 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 81,726	Free Cancellation	Rating 7.4 3,717 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 81,740	Free Cancellation	Rating 6.8 7,728 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 87,979	Free Cancellation	Rating 6.7 7,687 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 94,323	Free Cancellation	Rating 8.1 3,473 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.