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

Etihad Airways, Emirates, 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 40m 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 28h 30m.

Which airlines fly to Illinois?

Etihad Airways, Air India 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 54% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 5 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 5 as of April 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.

₹ 47,143 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

21:10 - 02:25

ORD

MAA

18h 45m

1 stop

₹ 74,412Etihad Airways

Wed, 6 May - Wed, 26 Aug

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

21:10 - 02:25

ORD

MAA

18h 45m

1 stop

₹ 74,967Etihad Airways

Thu, 7 May - Mon, 12 Oct

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

21:10 - 15:05

ORD

MAA

31h 25m

1 stop

₹ 75,059Etihad Airways

Tue, 12 May - Fri, 11 Sep

16:05 - 18:04

MAA

STL

36h 29m

2 stops

07:35 - 02:25

STL

MAA

32h 20m

2 stops

₹ 90,404Multiple Airlines

Thu, 14 May - Sun, 18 Oct

16:05 - 19:59

MAA

STL

38h 24m

2 stops

13:37 - 08:25

STL

MAA

32h 18m

2 stops

₹ 93,732Multiple Airlines

Wed, 6 May - Wed, 26 Aug

04:20 - 20:30

MAA

STL

26h 40m

2 stops

14:50 - 02:30

STL

MAA

24h 10m

2 stops

₹ 119,429Qatar Airways

Wed, 17 Jun - Wed, 11 Nov

03:55 - 19:21

MAA

STL

25h 56m

2 stops

18:51 - 02:40

STL

MAA

45h 19m

2 stops

₹ 119,799Qatar Airways

Mon, 15 Jun - Tue, 11 Aug

18:45 - 11:10

CJB

ORD

26h 55m

2 stops

14:30 - 14:45

ORD

CJB

36h 45m

1 stop

₹ 120,908Air India

Tue, 21 Jul - Wed, 13 Jan

04:05 - 19:51

MAA

STL

26h 16m

2 stops

17:18 - 02:30

STL

MAA

22h 42m

2 stops

₹ 122,387Emirates

Wed, 13 May - Mon, 19 Oct

04:05 - 21:16

MAA

STL

27h 41m

2 stops

15:15 - 02:15

STL

MAA

23h 30m

2 stops

₹ 123,404Emirates

Tue, 16 Jun - Tue, 10 Nov

Etihad Airways flights from Tamil Nadu to Illinois

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

Etihad Airways

6 May

MAA04:05Chennai

39h 00m

1 stop

ORD08:35Chicago O'Hare Intl

26 Aug

ORD21:10Chicago O'Hare Intl

18h 45m

1 stop

MAA02:25Chennai

₹ 74,412

Etihad Airways

7 May

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

12 Oct

ORD21:10Chicago O'Hare Intl

18h 45m

1 stop

MAA02:25Chennai

₹ 74,967

Etihad Airways

12 May

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

11 Sept

ORD21:10Chicago O'Hare Intl

31h 25m

1 stop

MAA15:05Chennai

₹ 75,059

Air India flights from Tamil Nadu to Illinois

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

Air India

20 May

CJB21:45Coimbatore Peelamedu

47h 55m

3 stops

ORD11:10Chicago O'Hare Intl

20 Jul

ORD13:10Chicago O'Hare Intl

45h 25m

2 stops

CJB21:05Coimbatore Peelamedu

₹ 167,497

Air India

3 May

CJB09:00Coimbatore Peelamedu

36h 40m

3 stops

ORD11:10Chicago O'Hare Intl

10 May

ORD13:10Chicago O'Hare Intl

32h 40m

2 stops

CJB08:20Coimbatore Peelamedu

₹ 177,295

Air India

21 May

CJB09:00Coimbatore Peelamedu

36h 40m

3 stops

ORD11:10Chicago O'Hare Intl

22 Jul

ORD13:10Chicago O'Hare Intl

32h 40m

2 stops

CJB08:20Coimbatore Peelamedu

₹ 178,497

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 6/5

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Wed 26/8

21:10-02:25

1 stop18h 45m

₹ 74,412

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 7/5

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Mon 12/10

21:10-02:25

1 stop18h 45m

₹ 74,967

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 12/5

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Fri 11/9

21:10-15:05

1 stop31h 25m

₹ 75,059

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 14/5

16:05-18:04

2 stops36h 29m

Lambert-St Louis

Sun 18/10

07:35-02:25

2 stops32h 20m

₹ 90,404

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 6/5

16:05-19:59

2 stops38h 24m

Lambert-St Louis

Wed 26/8

13:37-08:25

2 stops32h 18m

₹ 93,732

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 17/6

04:20-20:30

2 stops26h 40m

Lambert-St Louis

Wed 11/11

14:50-02:30

2 stops24h 10m

₹ 119,429

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 15/6

03:55-19:21

2 stops25h 56m

Lambert-St Louis

Tue 11/8

18:51-02:40

2 stops45h 19m

₹ 119,799

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Tue 21/7

18:45-11:10

2 stops26h 55m

Chicago O'Hare Intl

Wed 13/1

14:30-14:45

1 stop36h 45m

₹ 120,908

Fastest return journey

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 13/5

04:05-19:51

2 stops26h 16m

Lambert-St Louis

Mon 19/10

17:18-02:30

2 stops22h 42m

₹ 122,387

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 16/6

04:05-21:16

2 stops27h 41m

Lambert-St Louis

Tue 10/11

15:15-02:15

2 stops23h 30m

₹ 123,404

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 ₹ 81,437. If you aren’t able to travel during the month of October, then book flights to Illinois from Tamil Nadu during March instead. Flights to Illinois in March, while not as cheap as those in October, still average around ₹ 84,673.

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 ₹ 95,164 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 ₹ 83,748 on momondo.

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

You could potentially save up to 16% 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 40m
Direct flights	None

The fastest flight from Tamil Nadu to Illinois takes 21h 40m

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 5 as of April 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 ₹ 70,404	Free Cancellation	Rating 7.3 1,428 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 74,236	Free Cancellation	Rating 5.5 2,966 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 82,047	Free Cancellation	Rating 7.4 3,727 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 89,159	Free Cancellation	Rating 6.7 7,864 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 89,914	Free Cancellation	Rating 8.1 3,559 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.