Which airlines fly to Illinois?

Etihad Airways, Emirates and British Airways are the top three most popular airlines that fly to Illinois from Chennai 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 Chennai to Illinois?

Air India, Cathay Pacific, and Etihad Airways are the most popular carriers operating from Chennai to Illinois

When did momondo last update prices for flights from Chennai Airport to Illinois?

Prices for flights from Chennai Airport to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Chennai Airport to Illinois?

As of September 2025, there are 6 operators available to choose from for flights from Chennai Airport to Illinois.

How old do you have to be to fly from Chennai Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chennai Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

₹ 45,592 Cheap Flights from Chennai to Illinois in 2025/26

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customie your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Chennai to Illinois

Round-trip

One-way

Last minute

Cheap return flights

07:35 - 18:45MAA-ORD

22h 40m1 stop

16:45 - 05:35ORD-MAA

25h 20m2 stops

₹ 78,950British Airways

Find Deal

Wed, 26 Nov - Sat, 14 Feb

01:50 - 13:10MAA-ORD

22h 50m1 stop

18:50 - 08:55ORD-MAA

26h 35m2 stops

₹ 79,038Multiple Airlines

Find Deal

Tue, 25 Nov - Sat, 14 Feb

22:00 - 08:45MAA-ORD

21h 15m1 stop

13:55 - 08:30ORD-MAA

32h 05m1 stop

₹ 79,126Etihad Airways

Find Deal

Tue, 7 Oct - Mon, 13 Oct

15:45 - 07:55MAA-ORD

27h 40m1 stop

14:10 - 19:55ORD-MAA

19h 15m1 stop

₹ 79,214Etihad Airways

Find Deal

Sun, 8 Feb - Wed, 18 Mar

01:50 - 16:20MAA-ORD

25h 00m1 stop

16:20 - 08:55ORD-MAA

29h 05m2 stops

₹ 79,918Lufthansa

Find Deal

Tue, 28 Oct - Tue, 25 Nov

20:40 - 11:30MAA-ORD

26h 20m2 stops

13:30 - 23:50ORD-MAA

22h 50m1 stop

₹ 80,094Air India

Find Deal

Tue, 18 Nov - Fri, 16 Jan

20:40 - 11:30MAA-ORD

26h 20m2 stops

13:30 - 22:55ORD-MAA

21h 55m1 stop

₹ 80,358Air India

Find Deal

Tue, 18 Nov - Fri, 16 Jan

06:40 - 11:10MAA-ORD

40h 00m2 stops

16:20 - 00:05ORD-MAA

21h 15m1 stop

₹ 80,886Lufthansa

Find Deal

Sun, 8 Feb - Wed, 18 Mar

03:50 - 14:55MAA-ORD

22h 35m1 stop

20:35 - 08:05ORD-MAA

25h 00m1 stop

₹ 86,431Emirates

Find Deal

Sat, 22 Nov - Wed, 13 May

09:45 - 21:40MAA-STL

46h 25m2 stops

15:14 - 02:15STL-MAA

23h 31m2 stops

₹ 284,466Emirates

Find Deal

Thu, 30 Oct - Thu, 6 Nov

Air India flights from Chennai to Illinois

Our best Air India deals on Chennai 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

₹ 80,094

Find similar

Air India

18 Nov

MAA20:40Chennai

26h 20m

2 stops

ORD11:30Chicago O'Hare Intl

16 Jan

ORD13:30Chicago O'Hare Intl

21h 55m

1 stop

MAA22:55Chennai

₹ 80,358

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

₹ 81,062

Find similar

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

7 Oct

MAA22:00Chennai

21h 15m

1 stop

ORD08:45Chicago O'Hare Intl

13 Oct

ORD13:55Chicago O'Hare Intl

32h 05m

1 stop

MAA08:30Chennai

₹ 79,126

Find similar

Etihad Airways

8 Feb

MAA15:45Chennai

27h 40m

1 stop

ORD07:55Chicago O'Hare Intl

18 Mar

ORD14:10Chicago O'Hare Intl

19h 15m

1 stop

MAA19:55Chennai

₹ 79,214

Find similar

Etihad Airways

18 Sept

MAA16:35Chennai

26h 40m

1 stop

ORD08:45Chicago O'Hare Intl

14 Nov

ORD13:10Chicago O'Hare Intl

37h 55m

1 stop

MAA14:35Chennai

₹ 81,326

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 26/11

07:35-18:45

1 stop22h 40m

Chicago O'Hare Intl

Sat 14/2

16:45-05:35

2 stops25h 20m

₹ 78,950

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 25/11

01:50-13:10

1 stop22h 50m

Chicago O'Hare Intl

Sat 14/2

18:50-08:55

2 stops26h 35m

₹ 79,038

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 7/10

22:00-08:45

1 stop21h 15m

Chicago O'Hare Intl

Mon 13/10

13:55-08:30

1 stop32h 05m

₹ 79,126

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 8/2

15:45-07:55

1 stop27h 40m

Chicago O'Hare Intl

Wed 18/3

14:10-19:55

1 stop19h 15m

₹ 79,214

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 28/10

01:50-16:20

1 stop25h 00m

Chicago O'Hare Intl

Tue 25/11

16:20-08:55

2 stops29h 05m

₹ 79,918

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

₹ 80,094

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 18/11

20:40-11:30

2 stops26h 20m

Chicago O'Hare Intl

Fri 16/1

13:30-22:55

1 stop21h 55m

₹ 80,358

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 8/2

06:40-11:10

2 stops40h 00m

Chicago O'Hare Intl

Wed 18/3

16:20-00:05

1 stop21h 15m

₹ 80,886

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

₹ 86,431

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 30/10

09:45-21:40

2 stops46h 25m

Lambert-St Louis

Thu 6/11

15:14-02:15

2 stops23h 31m

₹ 284,466

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 Chennai 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

What is the cheapest month to fly to Illinois?

In general, November is the cheapest month to fly from Chennai to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 79,038. If you aren’t able to travel during the month of November, then book flights to Illinois from Chennai during October instead. Flights to Illinois in October, while not as cheap as those in November, still average around ₹ 86,871.

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

On average, the least expensive day to fly to Illinois from Chennai is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as ₹ 97,686. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Chennai to Illinois on a Thursday will generally be more expensive and average around ₹ 114,293. 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 Chennai to Illinois in the afternoon for as low as ₹ 103,670. 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 ₹ 109,345.

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Chennai when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around ₹ 99,333 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 Chennai for as low as ₹ 80,270 on momondo.

Cheap Chennai to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chennai to Illinois

Direct flights	None

There are no direct flights from Chennai to Illinois. There are no popular flight routes from Chennai to Illinois.

Search flight deals

When did momondo last update prices for flights from Chennai Airport to Illinois?
Prices for flights from Chennai Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Chennai Airport to Illinois?
As of September 2025, there are 6 operators available to choose from for flights from Chennai Airport to Illinois.
How old do you have to be to fly from Chennai Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chennai Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Chennai to Illinois

Compare and see reviews for airlines that fly from Chennai to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Air India	PriceFrom ₹ 70,684	Free Cancellation	Rating 5.5 2,932 reviews	Search Air India flights
Etihad Airways	PriceFrom ₹ 73,504	Free Cancellation	Rating 7.4 1,251 reviews	Search Etihad Airways flights
Lufthansa	PriceFrom ₹ 79,338	Free Cancellation	Rating 6.8 7,409 reviews	Search Lufthansa flights
Qatar Airways	PriceFrom ₹ 79,955	Free Cancellation	Rating 7.4 3,622 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 80,284	Free Cancellation	Rating 6.7 7,367 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 91,694	Free Cancellation	Rating 8.1 3,339 reviews	Search Emirates flights

Why use momondo?

Why should I use momondo to find a flight deal from Chennai to Illinois?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Chennai.

Can I find flights from Chennai to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Chennai with this policy.

How can momondo help me find flights from Chennai to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Chennai.

I’m not ready to book a flight from Chennai to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Chennai are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.