What is the cheapest airline that flies from Chennai to Illinois?

Qatar Airways, Etihad Airways, and Emirates are the most popular carriers operating from Chennai to Illinois

Which airlines fly to Illinois?

Etihad Airways, Air India 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 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 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 April 2026, there are 5 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.

₹ 45,966 Cheap Flights from Chennai to Illinois in 2026

1 adult

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Find the cheapest flights from Chennai to Illinois

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

14:00 - 02:25

ORD

MAA

25h 55m

1 stop

₹ 74,231Etihad Airways

Wed, 6 May - Sun, 7 Jun

16:05 - 08:35

MAA

ORD

27h 00m

1 stop

14:10 - 02:30

ORD

MAA

25h 50m

1 stop

₹ 74,324Etihad Airways

Thu, 7 May - Sat, 31 Oct

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

14:00 - 20:10

ORD

MAA

19h 40m

1 stop

₹ 74,416Etihad Airways

Wed, 10 Jun - Tue, 21 Jul

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

21:10 - 15:05

ORD

MAA

31h 25m

1 stop

₹ 74,509Etihad Airways

Thu, 14 May - Wed, 17 Jun

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

21:10 - 08:25

ORD

MAA

24h 45m

1 stop

₹ 74,880Etihad Airways

Tue, 2 Jun - Sat, 8 Aug

21:55 - 23:56

MAA

STL

36h 31m

2 stops

06:06 - 20:10

STL

MAA

27h 34m

2 stops

₹ 90,078Multiple Airlines

Wed, 15 Jul - Wed, 16 Sep

16:05 - 18:04

MAA

STL

36h 29m

2 stops

09:38 - 02:25

STL

MAA

30h 17m

2 stops

₹ 90,449Multiple Airlines

Thu, 14 May - Fri, 16 Oct

04:20 - 22:58

MAA

STL

29h 08m

2 stops

10:14 - 02:50

STL

MAA

30h 06m

2 stops

₹ 119,548Qatar Airways

Wed, 1 Jul - Thu, 17 Sep

04:20 - 20:30

MAA

STL

26h 40m

2 stops

10:14 - 02:50

STL

MAA

30h 06m

2 stops

₹ 124,367Qatar Airways

Wed, 10 Jun - Wed, 16 Sep

09:50 - 19:51

MAA

STL

44h 31m

2 stops

17:18 - 02:15

STL

MAA

22h 27m

2 stops

₹ 124,460Emirates

Tue, 12 May - Tue, 27 Oct

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

6 May

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

7 Jun

ORD14:00Chicago O'Hare Intl

25h 55m

1 stop

MAA02:25Chennai

₹ 74,231

Etihad Airways

7 May

MAA16:05Chennai

27h 00m

1 stop

ORD08:35Chicago O'Hare Intl

31 Oct

ORD14:10Chicago O'Hare Intl

25h 50m

1 stop

MAA02:30Chennai

₹ 74,324

Etihad Airways

10 Jun

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

21 Jul

ORD14:00Chicago O'Hare Intl

19h 40m

1 stop

MAA20:10Chennai

₹ 74,416

Qatar Airways flights from Chennai to Illinois

Our best Qatar Airways deals on Chennai to Illinois flight tickets

Qatar Airways

9 Sept

MAA04:20Chennai

21h 15m

1 stop

ORD15:05Chicago O'Hare Intl

17 Nov

ORD18:50Chicago O'Hare Intl

20h 10m

1 stop

MAA02:30Chennai

₹ 78,957

Qatar Airways

13 Apr

MAA03:55Chennai

23h 10m

1 stop

ORD16:35Chicago O'Hare Intl

6 May

ORD19:20Chicago O'Hare Intl

21h 05m

1 stop

MAA02:55Chennai

₹ 79,791

Qatar Airways

23 Apr

MAA04:25Chennai

22h 55m

1 stop

ORD16:50Chicago O'Hare Intl

8 Oct

ORD19:20Chicago O'Hare Intl

21h 00m

1 stop

MAA02:50Chennai

₹ 80,162

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 6/5

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Sun 7/6

14:00-02:25

1 stop25h 55m

₹ 74,231

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 7/5

16:05-08:35

1 stop27h 00m

Chicago O'Hare Intl

Sat 31/10

14:10-02:30

1 stop25h 50m

₹ 74,324

Fastest return journey

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 10/6

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Tue 21/7

14:00-20:10

1 stop19h 40m

₹ 74,416

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 14/5

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Wed 17/6

21:10-15:05

1 stop31h 25m

₹ 74,509

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 2/6

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Sat 8/8

21:10-08:25

1 stop24h 45m

₹ 74,880

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 15/7

21:55-23:56

2 stops36h 31m

Lambert-St Louis

Wed 16/9

06:06-20:10

2 stops27h 34m

₹ 90,078

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 14/5

16:05-18:04

2 stops36h 29m

Lambert-St Louis

Fri 16/10

09:38-02:25

2 stops30h 17m

₹ 90,449

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 1/7

04:20-22:58

2 stops29h 08m

Lambert-St Louis

Thu 17/9

10:14-02:50

2 stops30h 06m

₹ 119,548

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 10/6

04:20-20:30

2 stops26h 40m

Lambert-St Louis

Wed 16/9

10:14-02:50

2 stops30h 06m

₹ 124,367

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 12/5

09:50-19:51

2 stops44h 31m

Lambert-St Louis

Tue 27/10

17:18-02:15

2 stops22h 27m

₹ 124,460

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, October 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 ₹ 81,645. If you aren’t able to travel during the month of October, then book flights to Illinois from Chennai during March instead. Flights to Illinois in March, while not as cheap as those in October, still average around ₹ 87,390.

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 ₹ 95,407 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 ₹ 83,962 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 16% on your flight if you consider stops on a Chennai to Illinois flight.

Cheap Chennai to Illinois flight deals and tips

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

Fastest flight time	21h 10m
Direct flights	None

The fastest flight from Chennai to Illinois takes 21h 10m

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

Search flight deals

Frequently asked questions about flying 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 April 2026, there are 5 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
Etihad Airways	PriceFrom ₹ 70,583	Free Cancellation	Rating 7.3 1,429 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 74,425	Free Cancellation	Rating 5.5 2,968 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 82,255	Free Cancellation	Rating 7.4 3,730 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 89,386	Free Cancellation	Rating 6.7 7,853 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 90,143	Free Cancellation	Rating 8.1 3,556 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.