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 52% 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 21h 50m 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.

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

Qatar Airways, Emirates, and Oman Air 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 March 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.

₹ 46,368 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.

21:55 - 08:35

MAA

ORD

21h 10m

1 stop

21:10 - 02:25

ORD

MAA

18h 45m

1 stop

₹ 74,620Etihad Airways

Fri, 17 Apr - Wed, 29 Jul

04:05 - 09:15

MAA

ORD

39h 40m

1 stop

21:10 - 02:25

ORD

MAA

18h 45m

1 stop

₹ 74,714Etihad Airways

Mon, 13 Apr - Tue, 30 Jun

04:05 - 09:15

MAA

ORD

39h 40m

1 stop

21:10 - 02:25

ORD

MAA

18h 45m

1 stop

₹ 74,808Etihad Airways

Mon, 6 Apr - Tue, 21 Jul

21:55 - 09:15

MAA

ORD

21h 50m

1 stop

21:10 - 20:10

ORD

MAA

36h 30m

1 stop

₹ 75,653Etihad Airways

Fri, 10 Apr - Thu, 1 Oct

21:55 - 19:30

MAA

STL

32h 05m

2 stops

06:06 - 20:10

STL

MAA

27h 34m

2 stops

₹ 91,703Multiple Airlines

Tue, 28 Apr - Tue, 8 Sep

16:05 - 16:41

MAA

STL

35h 06m

2 stops

16:32 - 02:25

STL

MAA

23h 23m

2 stops

₹ 94,988Multiple Airlines

Wed, 13 May - Sat, 17 Oct

05:35 - 09:25

MAA

STL

62h 20m

2 stops

09:46 - 03:30

STL

MAA

55h 14m

2 stops

₹ 119,299British Airways

Thu, 17 Sep - Mon, 21 Sep

03:55 - 20:30

MAA

STL

27h 05m

2 stops

10:14 - 02:50

STL

MAA

30h 06m

2 stops

₹ 126,338Qatar Airways

Mon, 22 Jun - Wed, 12 Aug

04:20 - 20:30

MAA

STL

26h 40m

2 stops

13:20 - 02:30

STL

MAA

25h 40m

2 stops

₹ 126,526Qatar Airways

Tue, 9 Jun - Thu, 5 Nov

09:00 - 21:44

CJB

ORD

47h 14m

2 stops

08:31 - 21:05

ORD

CJB

50h 04m

2 stops

₹ 190,258Air India

Mon, 6 Apr - Mon, 20 Apr

Etihad Airways flights from Tamil Nadu to Illinois

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

Etihad Airways

17 Apr

MAA04:05Chennai

39h 00m

1 stop

ORD08:35Chicago O'Hare Intl

29 Jul

ORD21:10Chicago O'Hare Intl

36h 30m

1 stop

MAA20:10Chennai

₹ 74,620

Etihad Airways

13 Apr

MAA04:05Chennai

39h 40m

1 stop

ORD09:15Chicago O'Hare Intl

30 Jun

ORD21:10Chicago O'Hare Intl

18h 45m

1 stop

MAA02:25Chennai

₹ 74,714

Etihad Airways

6 Apr

MAA04:05Chennai

39h 40m

1 stop

ORD09:15Chicago O'Hare Intl

21 Jul

ORD21:10Chicago O'Hare Intl

18h 45m

1 stop

MAA02:25Chennai

₹ 74,808

Qatar Airways flights from Tamil Nadu to Illinois

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

Qatar Airways

6 May

MAA03:55Chennai

21h 40m

1 stop

ORD15:05Chicago O'Hare Intl

29 Oct

ORD18:50Chicago O'Hare Intl

21h 00m

1 stop

MAA02:20Chennai

₹ 80,346

Qatar Airways

7 Sept

MAA04:20Chennai

21h 15m

1 stop

ORD15:05Chicago O'Hare Intl

7 Oct

ORD19:20Chicago O'Hare Intl

21h 00m

1 stop

MAA02:50Chennai

₹ 80,534

Qatar Airways

1 Apr

MAA04:20Chennai

21h 15m

1 stop

ORD15:05Chicago O'Hare Intl

22 Apr

ORD08:00Chicago O'Hare Intl

32h 20m

2 stops

MAA02:50Chennai

₹ 90,952

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Fri 17/4

21:55-08:35

1 stop21h 10m

Chicago O'Hare Intl

Wed 29/7

21:10-02:25

1 stop18h 45m

₹ 74,620

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 13/4

04:05-09:15

1 stop39h 40m

Chicago O'Hare Intl

Tue 30/6

21:10-02:25

1 stop18h 45m

₹ 74,714

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 6/4

04:05-09:15

1 stop39h 40m

Chicago O'Hare Intl

Tue 21/7

21:10-02:25

1 stop18h 45m

₹ 74,808

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Fri 10/4

21:55-09:15

1 stop21h 50m

Chicago O'Hare Intl

Thu 1/10

21:10-20:10

1 stop36h 30m

₹ 75,653

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 28/4

21:55-19:30

2 stops32h 05m

Lambert-St Louis

Tue 8/9

06:06-20:10

2 stops27h 34m

₹ 91,703

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 13/5

16:05-16:41

2 stops35h 06m

Lambert-St Louis

Sat 17/10

16:32-02:25

2 stops23h 23m

₹ 94,988

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 17/9

05:35-09:25

2 stops62h 20m

Lambert-St Louis

Mon 21/9

09:46-03:30

2 stops55h 14m

₹ 119,299

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 22/6

03:55-20:30

2 stops27h 05m

Lambert-St Louis

Wed 12/8

10:14-02:50

2 stops30h 06m

₹ 126,338

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 9/6

04:20-20:30

2 stops26h 40m

Lambert-St Louis

Thu 5/11

13:20-02:30

2 stops25h 40m

₹ 126,526

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Mon 6/4

09:00-21:44

2 stops47h 14m

Chicago O'Hare Intl

Mon 20/4

08:31-21:05

2 stops50h 04m

₹ 190,258

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 ₹ 82,692. 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 ₹ 88,512.

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 ₹ 99,486 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 ₹ 79,313 on momondo.

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

You could potentially save up to 15% 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 05m
Direct flights	None

The fastest flight from Tamil Nadu to Illinois takes 22h 05m

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 March 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 ₹ 71,489	Free Cancellation	Rating 7.3 1,430 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 75,380	Free Cancellation	Rating 5.5 2,974 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 83,311	Free Cancellation	Rating 7.4 3,732 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom ₹ 84,608	Free Cancellation	Rating 6.8 7,870 reviews	Search Lufthansa flights
British Airways	PriceFrom ₹ 90,533	Free Cancellation	Rating 6.7 7,821 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 91,300	Free Cancellation	Rating 8.1 3,542 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.