Which airlines fly to Illinois?

Etihad Airways, Emirates 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 43% 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.

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 23h 35m 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 31h 40m.

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

Etihad Airways, American Airlines, and Air India 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 February 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.

₹ 39,321 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.

16:10 - 08:35

MAA

ORD

26h 55m

1 stop

14:10 - 19:55

ORD

MAA

19h 15m

1 stop

₹ 67,735Etihad Airways

Mon, 16 Mar - Mon, 23 Mar

03:55 - 08:35

MAA

ORD

39h 10m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 68,193Etihad Airways

Mon, 16 Mar - Sun, 5 Apr

03:55 - 08:35

MAA

ORD

39h 10m

1 stop

14:10 - 19:55

ORD

MAA

19h 15m

1 stop

₹ 68,652Etihad Airways

Tue, 17 Mar - Wed, 25 Mar

03:55 - 07:35

MAA

ORD

39h 10m

1 stop

14:00 - 15:05

ORD

MAA

38h 35m

1 stop

₹ 69,477Etihad Airways

Mon, 23 Feb - Thu, 20 Aug

16:35 - 08:35

MAA

ORD

26h 30m

1 stop

14:00 - 02:25

ORD

MAA

25h 55m

1 stop

₹ 69,660Etihad Airways

Wed, 15 Apr - Sat, 19 Sep

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

14:00 - 08:10

ORD

MAA

31h 40m

1 stop

₹ 69,752Etihad Airways

Tue, 12 May - Fri, 23 Oct

10:00 - 08:35

MAA

ORD

33h 05m

1 stop

14:20 - 08:45

ORD

MAA

31h 55m

2 stops

₹ 70,026Multiple Airlines

Wed, 25 Mar - Tue, 28 Jul

01:55 - 13:25

MAA

STL

22h 00m

1 stop

12:10 - 00:10

STL

MAA

25h 30m

2 stops

₹ 128,596Lufthansa

Sun, 19 Jul - Tue, 22 Sep

01:55 - 13:25

MAA

STL

22h 00m

1 stop

15:30 - 00:10

STL

MAA

22h 10m

1 stop

₹ 132,995Lufthansa

Sun, 19 Jul - Tue, 22 Sep

01:55 - 13:25

MAA

STL

22h 00m

1 stop

15:30 - 00:10

STL

MAA

22h 10m

1 stop

₹ 133,087Lufthansa

Sun, 19 Jul - Tue, 22 Sep

Etihad Airways flights from Tamil Nadu to Illinois

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

Etihad Airways

16 Mar

MAA16:10Chennai

26h 55m

1 stop

ORD08:35Chicago O'Hare Intl

23 Mar

ORD14:10Chicago O'Hare Intl

19h 15m

1 stop

MAA19:55Chennai

₹ 67,735

Etihad Airways

16 Mar

MAA03:55Chennai

39h 10m

1 stop

ORD08:35Chicago O'Hare Intl

5 Apr

ORD14:00Chicago O'Hare Intl

19h 40m

1 stop

MAA20:10Chennai

₹ 68,193

Etihad Airways

17 Mar

MAA03:55Chennai

39h 10m

1 stop

ORD08:35Chicago O'Hare Intl

25 Mar

ORD14:10Chicago O'Hare Intl

19h 15m

1 stop

MAA19:55Chennai

₹ 68,652

Cathay Pacific flights from Tamil Nadu to Illinois

Our best Cathay Pacific deals on Tamil Nadu to Illinois flight tickets

Cathay Pacific

28 Apr

MAA00:50Chennai

23h 35m

1 stop

ORD13:55Chicago O'Hare Intl

31 Jul

ORD16:00Chicago O'Hare Intl

45h 05m

1 stop

MAA23:35Chennai

₹ 77,542

Cathay Pacific

11 Jun

MAA00:50Chennai

23h 35m

1 stop

ORD13:55Chicago O'Hare Intl

31 Aug

ORD16:00Chicago O'Hare Intl

45h 05m

1 stop

MAA23:35Chennai

₹ 77,726

Cathay Pacific

16 Apr

MAA00:50Chennai

23h 35m

1 stop

ORD13:55Chicago O'Hare Intl

29 Jul

ORD16:00Chicago O'Hare Intl

45h 05m

1 stop

MAA23:35Chennai

₹ 81,209

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 16/3

16:10-08:35

1 stop26h 55m

Chicago O'Hare Intl

Mon 23/3

14:10-19:55

1 stop19h 15m

₹ 67,735

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 16/3

03:55-08:35

1 stop39h 10m

Chicago O'Hare Intl

Sun 5/4

14:00-20:10

1 stop19h 40m

₹ 68,193

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 17/3

03:55-08:35

1 stop39h 10m

Chicago O'Hare Intl

Wed 25/3

14:10-19:55

1 stop19h 15m

₹ 68,652

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 23/2

03:55-07:35

1 stop39h 10m

Chicago O'Hare Intl

Thu 20/8

14:00-15:05

1 stop38h 35m

₹ 69,477

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 15/4

16:35-08:35

1 stop26h 30m

Chicago O'Hare Intl

Sat 19/9

14:00-02:25

1 stop25h 55m

₹ 69,660

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 12/5

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Fri 23/10

14:00-08:10

1 stop31h 40m

₹ 69,752

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 25/3

10:00-08:35

1 stop33h 05m

Chicago O'Hare Intl

Tue 28/7

14:20-08:45

2 stops31h 55m

₹ 70,026

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sun 19/7

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Tue 22/9

12:10-00:10

2 stops25h 30m

₹ 128,596

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sun 19/7

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Tue 22/9

15:30-00:10

1 stop22h 10m

₹ 132,995

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sun 19/7

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Tue 22/9

15:30-00:10

1 stop22h 10m

₹ 133,087

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 ₹ 80,750. 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 ₹ 92,666.

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 ₹ 98,089 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 ₹ 73,876 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	23h 35m
Direct flights	None

The fastest flight from Tamil Nadu to Illinois takes 23h 35m

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 February 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 ₹ 70,984	Free Cancellation	Rating 7.3 1,378 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 73,609	Free Cancellation	Rating 5.5 2,978 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 82,736	Free Cancellation	Rating 7.4 3,728 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 82,749	Free Cancellation	Rating 6.8 7,758 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 89,066	Free Cancellation	Rating 6.7 7,706 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 95,488	Free Cancellation	Rating 8.1 3,492 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.