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 25m 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 46h 15m.

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 34% 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?

Air India, Cathay Pacific, and IndiGo 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 September 2025.

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.

₹ 46,608 Cheap Flights from Tamil Nadu to Illinois in 2025/26

1 adult

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Find the cheapest flights from Tamil Nadu to Illinois

Round-trip

One-way

Last minute

Cheap return flights

01:50 - 12:55MAA-ORD

22h 35m1 stop

20:46 - 00:35ORD-MAA

40h 19m2 stops

₹ 79,711

Find Deal

Sat, 22 Nov - Thu, 4 Dec

01:50 - 13:55MAA-ORD

22h 35m1 stop

20:41 - 00:35ORD-MAA

40h 24m2 stops

₹ 79,975

Find Deal

Wed, 29 Oct - Thu, 6 Nov

20:40 - 11:30MAA-ORD

26h 20m2 stops

13:30 - 23:50ORD-MAA

22h 50m1 stop

₹ 80,328Air India

Find Deal

Tue, 18 Nov - Fri, 16 Jan

03:55 - 07:55MAA-ORD

39h 30m1 stop

13:10 - 08:10ORD-MAA

31h 30m1 stop

₹ 81,035Etihad Airways

Find Deal

Thu, 13 Nov - Mon, 1 Dec

10:15 - 08:45MAA-ORD

33h 00m1 stop

13:55 - 02:40ORD-MAA

26h 15m1 stop

₹ 81,741Etihad Airways

Find Deal

Fri, 26 Sep - Thu, 9 Oct

03:50 - 14:55MAA-ORD

22h 35m1 stop

20:35 - 08:05ORD-MAA

25h 00m1 stop

₹ 86,684Emirates

Find Deal

Sat, 22 Nov - Wed, 13 May

09:50 - 15:45MAA-ORD

40h 25m1 stop

20:35 - 08:05ORD-MAA

25h 00m1 stop

₹ 87,743Emirates

Find Deal

Tue, 30 Sep - Tue, 14 Oct

05:35 - 08:38MAA-ORD

37h 33m2 stops

17:07 - 03:30ORD-MAA

23h 53m2 stops

₹ 90,656British Airways

Find Deal

Fri, 26 Sep - Sun, 5 Oct

04:20 - 14:50MAA-ORD

21h 00m1 stop

18:50 - 09:10ORD-MAA

26h 50m1 stop

₹ 91,363Qatar Airways

Find Deal

Wed, 15 Oct - Fri, 14 Nov

05:35 - 18:46MAA-STL

47h 41m2 stops

20:00 - 03:30STL-MAA

45h 00m2 stops

₹ 117,050British Airways

Find Deal

Tue, 14 Oct - Sat, 18 Oct

Turkish Airlines flights from Tamil Nadu to Illinois

Our best Turkish Airlines deals on Tamil Nadu to Illinois flight tickets

Turkish Airlines

21 Sept

MAA23:00Chennai

29h 25m

2 stops

ORD17:55Chicago O'Hare Intl

6 Oct

ORD23:45Chicago O'Hare Intl

23h 55m

2 stops

MAA10:10Chennai

₹ 87,037

Find similar

Turkish Airlines

23 Nov

MAA22:45Chennai

31h 10m

2 stops

ORD18:25Chicago O'Hare Intl

4 Dec

ORD11:50Chicago O'Hare Intl

35h 00m

2 stops

MAA10:20Chennai

₹ 87,390

Find similar

Turkish Airlines

16 Sept

MAA22:30Chennai

45h 40m

2 stops

ORD09:40Chicago O'Hare Intl

4 Nov

ORD11:50Chicago O'Hare Intl

36h 50m

2 stops

MAA12:10Chennai

₹ 90,303

Find similar

Air India flights from Tamil Nadu to Illinois

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

Air India

18 Nov

MAA20:40Chennai

26h 20m

2 stops

ORD11:30Chicago O'Hare Intl

16 Jan

ORD13:30Chicago O'Hare Intl

22h 50m

1 stop

MAA23:50Chennai

₹ 80,328

Find similar

Air India

18 Nov

MAA19:50Chennai

37h 32m

2 stops

ORD21:52Chicago O'Hare Intl

16 Jan

ORD13:30Chicago O'Hare Intl

22h 50m

1 stop

MAA23:50Chennai

₹ 80,682

Find similar

Air India

23 Nov

MAA20:40Chennai

26h 20m

2 stops

ORD11:30Chicago O'Hare Intl

13 May

ORD12:00Chicago O'Hare Intl

20h 40m

1 stop

MAA19:10Chennai

₹ 81,299

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sat 22/11

01:50-12:55

1 stop22h 35m

Chicago O'Hare Intl

Thu 4/12

20:46-00:35

2 stops40h 19m

₹ 79,711

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 29/10

01:50-13:55

1 stop22h 35m

Chicago O'Hare Intl

Thu 6/11

20:41-00:35

2 stops40h 24m

₹ 79,975

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 18/11

20:40-11:30

2 stops26h 20m

Chicago O'Hare Intl

Fri 16/1

13:30-23:50

1 stop22h 50m

₹ 80,328

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 13/11

03:55-07:55

1 stop39h 30m

Chicago O'Hare Intl

Mon 1/12

13:10-08:10

1 stop31h 30m

₹ 81,035

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Fri 26/9

10:15-08:45

1 stop33h 00m

Chicago O'Hare Intl

Thu 9/10

13:55-02:40

1 stop26h 15m

₹ 81,741

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sat 22/11

03:50-14:55

1 stop22h 35m

Chicago O'Hare Intl

Wed 13/5

20:35-08:05

1 stop25h 00m

₹ 86,684

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 30/9

09:50-15:45

1 stop40h 25m

Chicago O'Hare Intl

Tue 14/10

20:35-08:05

1 stop25h 00m

₹ 87,743

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Fri 26/9

05:35-08:38

2 stops37h 33m

Chicago O'Hare Intl

Sun 5/10

17:07-03:30

2 stops23h 53m

₹ 90,656

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 15/10

04:20-14:50

1 stop21h 00m

Chicago O'Hare Intl

Fri 14/11

18:50-09:10

1 stop26h 50m

₹ 91,363

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 14/10

05:35-18:46

2 stops47h 41m

Lambert-St Louis

Sat 18/10

20:00-03:30

2 stops45h 00m

₹ 117,050

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, November 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 ₹ 79,269. If you aren’t able to travel during the month of November, then book flights to Illinois from Tamil Nadu during October instead. Flights to Illinois in October, while not as cheap as those in November, still average around ₹ 87,125.

What is the cheapest day to depart on your flight to Illinois?

On average, the least expensive day to fly to Illinois from Tamil Nadu is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as ₹ 97,972. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Tamil Nadu to Illinois on a Thursday will generally be more expensive and average around ₹ 114,627. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

According to our data, the cheapest time of day to fly to Illinois is in the afternoon. momondo users have found flights departing from Tamil Nadu to Illinois in the afternoon for as low as ₹ 103,973. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Illinois is in the morning when prices are around ₹ 109,665.

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 ₹ 99,623 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 ₹ 80,505 on momondo.

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

Direct flights	None

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 September 2025.
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
Air India	PriceFrom ₹ 70,891	Free Cancellation	Rating 5.5 2,930 reviews	Search Air India flights
Etihad Airways	PriceFrom ₹ 73,719	Free Cancellation	Rating 7.4 1,250 reviews	Search Etihad Airways flights
Lufthansa	PriceFrom ₹ 79,570	Free Cancellation	Rating 6.8 7,407 reviews	Search Lufthansa flights
Qatar Airways	PriceFrom ₹ 80,189	Free Cancellation	Rating 7.4 3,624 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 80,519	Free Cancellation	Rating 6.6 7,361 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 91,962	Free Cancellation	Rating 8.1 3,334 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.