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

Etihad Airways, Qatar Airways, and Air India 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 21h 30m 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 29h 20m.

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 45% 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 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.

₹ 38,830 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.

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

14:00 - 00:05

ORD

MAA

23h 35m

2 stops

₹ 71,673Multiple Airlines

Tue, 7 Apr - Sun, 26 Apr

10:00 - 07:35

MAA

ORD

33h 05m

1 stop

14:00 - 02:25

ORD

MAA

25h 55m

1 stop

₹ 71,763Etihad Airways

Wed, 4 Mar - Fri, 14 Aug

10:00 - 07:35

MAA

ORD

33h 05m

1 stop

19:05 - 04:55

ORD

MAA

23h 20m

2 stops

₹ 71,854Multiple Airlines

Wed, 4 Mar - Sun, 16 Aug

01:55 - 13:25

MAA

STL

22h 00m

1 stop

15:30 - 00:10

STL

MAA

22h 10m

1 stop

₹ 114,949Lufthansa

Tue, 28 Apr - Wed, 16 Sep

01:55 - 22:45

MAA

STL

31h 20m

2 stops

15:30 - 00:10

STL

MAA

22h 10m

1 stop

₹ 115,402Lufthansa

Wed, 29 Apr - Tue, 15 Sep

01:55 - 15:24

MAA

STL

47h 59m

2 stops

12:10 - 00:10

STL

MAA

25h 30m

2 stops

₹ 115,947Air Canada

Tue, 28 Apr - Mon, 14 Sep

01:55 - 15:24

MAA

STL

47h 59m

2 stops

08:55 - 00:10

STL

MAA

52h 45m

2 stops

₹ 118,215Air Canada

Tue, 28 Apr - Thu, 17 Sep

20:40 - 12:25

CJB

ORD

50h 15m

2 stops

21:05 - 13:30

ORD

CJB

29h 55m

2 stops

₹ 133,638British Airways

Fri, 3 Apr - Sat, 3 Oct

21:40 - 11:10

CJB

ORD

48h 00m

3 stops

06:45 - 14:45

ORD

CJB

45h 30m

2 stops

₹ 156,954Air India

Fri, 3 Apr - Sat, 3 Oct

21:40 - 11:10

CJB

ORD

48h 00m

3 stops

06:45 - 14:45

ORD

CJB

45h 30m

2 stops

₹ 162,579Air India

Fri, 3 Apr - Sat, 3 Oct

Air France flights from Tamil Nadu to Illinois

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

Air France

28 May

MAA19:05Chennai

30h 35m

2 stops

ORD15:10Chicago O'Hare Intl

26 Aug

ORD17:10Chicago O'Hare Intl

28h 40m

2 stops

MAA08:20Chennai

₹ 74,667

Air France

28 May

MAA19:05Chennai

30h 35m

2 stops

ORD15:10Chicago O'Hare Intl

24 Aug

ORD17:10Chicago O'Hare Intl

28h 40m

2 stops

MAA08:20Chennai

₹ 76,118

Etihad Airways flights from Tamil Nadu to Illinois

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

Etihad Airways

4 Mar

MAA10:00Chennai

33h 05m

1 stop

ORD07:35Chicago O'Hare Intl

14 Aug

ORD14:00Chicago O'Hare Intl

25h 55m

1 stop

MAA02:25Chennai

₹ 71,763

Etihad Airways

17 May

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

13 Aug

ORD14:00Chicago O'Hare Intl

31h 55m

1 stop

MAA08:25Chennai

₹ 71,945

Etihad Airways

10 May

MAA15:45Chennai

27h 20m

1 stop

ORD08:35Chicago O'Hare Intl

14 Aug

ORD14:00Chicago O'Hare Intl

25h 55m

1 stop

MAA02:25Chennai

₹ 72,036

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 7/4

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Sun 26/4

14:00-00:05

2 stops23h 35m

₹ 71,673

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 4/3

10:00-07:35

1 stop33h 05m

Chicago O'Hare Intl

Fri 14/8

14:00-02:25

1 stop25h 55m

₹ 71,763

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 4/3

10:00-07:35

1 stop33h 05m

Chicago O'Hare Intl

Sun 16/8

19:05-04:55

2 stops23h 20m

₹ 71,854

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 28/4

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Wed 16/9

15:30-00:10

1 stop22h 10m

₹ 114,949

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 29/4

01:55-22:45

2 stops31h 20m

Lambert-St Louis

Tue 15/9

15:30-00:10

1 stop22h 10m

₹ 115,402

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 28/4

01:55-15:24

2 stops47h 59m

Lambert-St Louis

Mon 14/9

12:10-00:10

2 stops25h 30m

₹ 115,947

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 28/4

01:55-15:24

2 stops47h 59m

Lambert-St Louis

Thu 17/9

08:55-00:10

2 stops52h 45m

₹ 118,215

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Fri 3/4

20:40-12:25

2 stops50h 15m

Chicago O'Hare Intl

Sat 3/10

21:05-13:30

2 stops29h 55m

₹ 133,638

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Fri 3/4

21:40-11:10

3 stops48h 00m

Chicago O'Hare Intl

Sat 3/10

06:45-14:45

2 stops45h 30m

₹ 156,954

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Fri 3/4

21:40-11:10

3 stops48h 00m

Chicago O'Hare Intl

Sat 3/10

06:45-14:45

2 stops45h 30m

₹ 162,579

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 ₹ 79,929. If you aren’t able to travel during the month of October, then book flights to Illinois from Tamil Nadu during February instead. Flights to Illinois in February, while not as cheap as those in October, still average around ₹ 87,187.

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 ₹ 96,978 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 ₹ 85,282 on momondo.

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

You could potentially save up to 25% 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	21h 30m
Direct flights	None

The fastest flight from Tamil Nadu to Illinois takes 21h 30m

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 ₹ 70,262	Free Cancellation	Rating 7.3 1,406 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 72,860	Free Cancellation	Rating 5.5 2,968 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 81,894	Free Cancellation	Rating 7.4 3,739 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 81,907	Free Cancellation	Rating 6.8 7,802 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 88,159	Free Cancellation	Rating 6.7 7,757 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 89,341	Free Cancellation	Rating 8.1 3,525 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.