Which airlines fly to Illinois?

Etihad Airways, Air India and Emirates 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.

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

Air India, Etihad Airways, and KLM 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 22h 05m 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 26h 55m.

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 May 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.

₹ 49,609 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 - 20:10

ORD

MAA

36h 30m

1 stop

₹ 84,355Etihad Airways

Wed, 27 May - Thu, 15 Oct

15:40 - 08:35

MAA

ORD

27h 25m

1 stop

21:10 - 20:10

ORD

MAA

36h 30m

1 stop

₹ 84,450Etihad Airways

Wed, 10 Jun - Tue, 8 Sep

18:45 - 11:10

CJB

ORD

26h 55m

2 stops

13:10 - 18:10

ORD

CJB

42h 30m

1 stop

₹ 105,657Air India

Thu, 4 Jun - Wed, 9 Sep

04:05 - 20:03

MAA

STL

26h 28m

2 stops

14:17 - 08:10

STL

MAA

30h 23m

2 stops

₹ 105,657Multiple Airlines

Thu, 17 Sep - Wed, 18 Nov

15:20 - 11:10

CJB

ORD

30h 20m

2 stops

13:10 - 08:20

ORD

CJB

32h 40m

2 stops

₹ 106,035Air India

Thu, 4 Jun - Wed, 9 Sep

21:55 - 23:20

MAA

STL

35h 55m

2 stops

06:00 - 02:30

STL

MAA

33h 00m

2 stops

₹ 109,065Multiple Airlines

Wed, 16 Sep - Tue, 17 Nov

04:20 - 22:57

MAA

STL

29h 07m

2 stops

15:33 - 02:50

STL

MAA

24h 47m

2 stops

₹ 124,970Qatar Airways

Thu, 18 Jun - Thu, 22 Oct

03:55 - 19:36

MAA

STL

26h 11m

2 stops

14:50 - 02:30

STL

MAA

24h 10m

2 stops

₹ 125,065Qatar Airways

Wed, 17 Jun - Wed, 4 Nov

22:05 - 21:21

MAA

STL

33h 46m

2 stops

17:18 - 02:30

STL

MAA

22h 42m

2 stops

₹ 130,177Emirates

Thu, 11 Jun - Mon, 19 Oct

09:50 - 21:21

MAA

STL

46h 01m

2 stops

17:18 - 02:30

STL

MAA

22h 42m

2 stops

₹ 130,367Emirates

Wed, 17 Jun - Tue, 20 Oct

Air India flights from Tamil Nadu to Illinois

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

Air India

9 Jun

MAA16:20Chennai

29h 20m

2 stops

ORD11:10Chicago O'Hare Intl

21 Oct

ORD13:10Chicago O'Hare Intl

22h 40m

1 stop

MAA22:20Chennai

₹ 91,171

Air India

4 Jun

CJB18:45Coimbatore Peelamedu

26h 55m

2 stops

ORD11:10Chicago O'Hare Intl

9 Sept

ORD13:10Chicago O'Hare Intl

42h 30m

1 stop

CJB18:10Coimbatore Peelamedu

₹ 105,657

Air India

4 Jun

CJB15:20Coimbatore Peelamedu

30h 20m

2 stops

ORD11:10Chicago O'Hare Intl

9 Sept

ORD13:10Chicago O'Hare Intl

32h 40m

2 stops

CJB08:20Coimbatore Peelamedu

₹ 106,035

Etihad Airways flights from Tamil Nadu to Illinois

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

Etihad Airways

27 May

MAA04:05Chennai

39h 00m

1 stop

ORD08:35Chicago O'Hare Intl

15 Oct

ORD21:10Chicago O'Hare Intl

36h 30m

1 stop

MAA20:10Chennai

₹ 84,355

Etihad Airways

10 Jun

MAA15:40Chennai

27h 25m

1 stop

ORD08:35Chicago O'Hare Intl

8 Sept

ORD21:10Chicago O'Hare Intl

36h 30m

1 stop

MAA20:10Chennai

₹ 84,450

Etihad Airways

25 Jun

MAA21:55Chennai

28h 15m

1 stop

ORD15:40Chicago O'Hare Intl

31 Aug

ORD14:00Chicago O'Hare Intl

19h 40m

1 stop

MAA20:10Chennai

₹ 85,112

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 27/5

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Thu 15/10

21:10-20:10

1 stop36h 30m

₹ 84,355

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 10/6

15:40-08:35

1 stop27h 25m

Chicago O'Hare Intl

Tue 8/9

21:10-20:10

1 stop36h 30m

₹ 84,450

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Thu 4/6

18:45-11:10

2 stops26h 55m

Chicago O'Hare Intl

Wed 9/9

13:10-18:10

1 stop42h 30m

₹ 105,657

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 17/9

04:05-20:03

2 stops26h 28m

Lambert-St Louis

Wed 18/11

14:17-08:10

2 stops30h 23m

₹ 105,657

CoimbatoreChicago

CJB - ORD

CJBORD

Coimbatore Peelamedu

Thu 4/6

15:20-11:10

2 stops30h 20m

Chicago O'Hare Intl

Wed 9/9

13:10-08:20

2 stops32h 40m

₹ 106,035

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 16/9

21:55-23:20

2 stops35h 55m

Lambert-St Louis

Tue 17/11

06:00-02:30

2 stops33h 00m

₹ 109,065

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 18/6

04:20-22:57

2 stops29h 07m

Lambert-St Louis

Thu 22/10

15:33-02:50

2 stops24h 47m

₹ 124,970

Fastest return journey

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 17/6

03:55-19:36

2 stops26h 11m

Lambert-St Louis

Wed 4/11

14:50-02:30

2 stops24h 10m

₹ 125,065

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 11/6

22:05-21:21

2 stops33h 46m

Lambert-St Louis

Mon 19/10

17:18-02:30

2 stops22h 42m

₹ 130,177

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 17/6

09:50-21:21

2 stops46h 01m

Lambert-St Louis

Tue 20/10

17:18-02:30

2 stops22h 42m

₹ 130,367

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, April 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 ₹ 38,627. If you aren’t able to travel during the month of April, then book flights to Illinois from Tamil Nadu during September instead. Flights to Illinois in September, while not as cheap as those in April, still average around ₹ 53,396.

How far in advance should I book a flight from Tamil Nadu 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 ₹ 97,262 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 ₹ 85,775 on momondo.

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

You could potentially save up to 2% 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

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 May 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 ₹ 72,108	Free Cancellation	Rating 7.3 1,434 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 76,032	Free Cancellation	Rating 5.5 2,956 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 84,032	Free Cancellation	Rating 7.4 3,727 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 91,017	Free Cancellation	Rating 6.7 7,949 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 92,090	Free Cancellation	Rating 8.1 3,570 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.