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

Oman Air, Qatar 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 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.

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 March 2026, 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.

₹ 46,183 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.

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

21:10 - 20:10

ORD

MAA

36h 30m

1 stop

₹ 74,324Etihad Airways

Fri, 17 Apr - Wed, 29 Jul

10:15 - 15:40

MAA

ORD

39h 55m

1 stop

21:10 - 20:10

ORD

MAA

36h 30m

1 stop

₹ 74,417Etihad Airways

Wed, 29 Jul - Wed, 12 Aug

05:35 - 09:25

MAA

STL

62h 20m

2 stops

09:46 - 03:30

STL

MAA

55h 14m

2 stops

₹ 118,824British Airways

Thu, 17 Sep - Mon, 21 Sep

05:35 - 18:02

MAA

STL

46h 57m

2 stops

09:46 - 03:30

STL

MAA

55h 14m

2 stops

₹ 118,918British 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

₹ 125,836Qatar Airways

Mon, 22 Jun - Wed, 12 Aug

04:20 - 22:24

MAA

STL

28h 34m

2 stops

11:04 - 02:50

STL

MAA

29h 16m

2 stops

₹ 135,652Qatar Airways

Wed, 29 Apr - Wed, 3 Jun

01:55 - 13:25

MAA

STL

22h 00m

1 stop

15:30 - 00:10

STL

MAA

22h 10m

1 stop

₹ 151,545Lufthansa

Mon, 22 Jun - Wed, 12 Aug

20:40 - 15:46

MAA

STL

29h 36m

3 stops

08:00 - 20:55

STL

MAA

26h 25m

2 stops

₹ 153,789Multiple Airlines

Tue, 23 Jun - Wed, 12 Aug

01:55 - 13:25

MAA

STL

22h 00m

1 stop

15:30 - 08:55

STL

MAA

30h 55m

2 stops

₹ 211,191Lufthansa

Mon, 7 Sep - Tue, 8 Sep

01:55 - 17:58

MAA

MDW

26h 33m

3 stops

09:27 - 04:55

MDW

MAA

32h 58m

3 stops

₹ 426,309Multiple Airlines

Wed, 15 Apr - Thu, 23 Apr

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

27 Mar

MAA21:10Chennai

23h 10m

1 stop

ORD09:50Chicago O'Hare Intl

30 Apr

ORD14:00Chicago O'Hare Intl

19h 40m

1 stop

MAA20:10Chennai

₹ 74,137

Etihad Airways

17 Apr

MAA21:55Chennai

21h 10m

1 stop

ORD08:35Chicago O'Hare Intl

29 Jul

ORD21:10Chicago O'Hare Intl

18h 45m

1 stop

MAA02:25Chennai

₹ 74,324

Etihad Airways

29 Jul

MAA10:15Chennai

39h 55m

1 stop

ORD15:40Chicago O'Hare Intl

12 Aug

ORD21:10Chicago O'Hare Intl

36h 30m

1 stop

MAA20:10Chennai

₹ 74,417

Qatar Airways flights from Chennai to Illinois

Our best Qatar Airways deals on Chennai to Illinois flight tickets

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

₹ 80,213

Qatar Airways

6 May

MAA03:55Chennai

21h 40m

1 stop

ORD15:05Chicago O'Hare Intl

2 Nov

ORD18:50Chicago O'Hare Intl

20h 00m

1 stop

MAA02:20Chennai

₹ 80,400

Qatar Airways

22 Jun

MAA03:55Chennai

27h 05m

2 stops

STL20:30Lambert-St Louis

12 Aug

STL10:14Lambert-St Louis

30h 06m

2 stops

MAA02:50Chennai

₹ 125,836

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Fri 17/4

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Wed 29/7

21:10-20:10

1 stop36h 30m

₹ 74,324

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 29/7

10:15-15:40

1 stop39h 55m

Chicago O'Hare Intl

Wed 12/8

21:10-20:10

1 stop36h 30m

₹ 74,417

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

₹ 118,824

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 17/9

05:35-18:02

2 stops46h 57m

Lambert-St Louis

Mon 21/9

09:46-03:30

2 stops55h 14m

₹ 118,918

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

₹ 125,836

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 29/4

04:20-22:24

2 stops28h 34m

Lambert-St Louis

Wed 3/6

11:04-02:50

2 stops29h 16m

₹ 135,652

Fastest return journey

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 22/6

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Wed 12/8

15:30-00:10

1 stop22h 10m

₹ 151,545

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 23/6

20:40-15:46

3 stops29h 36m

Lambert-St Louis

Wed 12/8

08:00-20:55

2 stops26h 25m

₹ 153,789

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 7/9

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Tue 8/9

15:30-08:55

2 stops30h 55m

₹ 211,191

ChennaiChicago

MAA - MDW

MAAMDW

Chennai

Wed 15/4

01:55-17:58

3 stops26h 33m

Chicago Midway

Thu 23/4

09:27-04:55

3 stops32h 58m

₹ 426,309

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 ₹ 82,364. 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 ₹ 88,160.

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 ₹ 99,091 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 ₹ 78,998 on momondo.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 15% 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

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 March 2026, 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
Etihad Airways	PriceFrom ₹ 71,205	Free Cancellation	Rating 7.3 1,429 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 75,080	Free Cancellation	Rating 5.5 2,971 reviews	Search Air India flights
Lufthansa	PriceFrom ₹ 84,272	Free Cancellation	Rating 6.8 7,860 reviews	Search Lufthansa flights
Qatar Airways	PriceFrom ₹ 84,389	Free Cancellation	Rating 7.4 3,732 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 90,173	Free Cancellation	Rating 6.7 7,813 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 90,937	Free Cancellation	Rating 8.1 3,541 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.