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.

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

Qatar Airways, Etihad Airways, and Oman Air 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 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.

₹ 48,514 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

13:10 - 08:10

ORD

MAA

31h 30m

1 stop

₹ 76,853Etihad Airways

Mon, 8 Jun - Wed, 11 Nov

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

13:10 - 02:30

ORD

MAA

25h 50m

1 stop

₹ 76,947Etihad Airways

Mon, 11 May - Sat, 7 Nov

04:05 - 08:35

MAA

ORD

39h 00m

1 stop

21:10 - 15:05

ORD

MAA

31h 25m

1 stop

₹ 78,542Etihad Airways

Tue, 19 May - Tue, 11 Aug

21:55 - 08:35

MAA

ORD

21h 10m

1 stop

21:10 - 08:25

ORD

MAA

24h 45m

1 stop

₹ 78,636Etihad Airways

Tue, 19 May - Tue, 11 Aug

10:15 - 08:35

MAA

ORD

32h 50m

1 stop

13:10 - 02:30

ORD

MAA

25h 50m

1 stop

₹ 79,387Etihad Airways

Mon, 11 May - Wed, 4 Nov

21:55 - 14:03

MAA

STL

26h 38m

2 stops

09:47 - 02:25

STL

MAA

30h 08m

2 stops

₹ 101,251Multiple Airlines

Tue, 12 May - Tue, 20 Oct

21:55 - 16:41

MAA

STL

29h 16m

2 stops

06:00 - 02:30

STL

MAA

33h 00m

2 stops

₹ 104,723Multiple Airlines

Wed, 13 May - Wed, 4 Nov

04:25 - 23:54

MAA

STL

29h 59m

2 stops

09:45 - 02:50

STL

MAA

30h 35m

2 stops

₹ 120,676Qatar Airways

Thu, 11 Jun - Wed, 12 Aug

04:25 - 23:54

MAA

STL

29h 59m

2 stops

09:47 - 02:50

STL

MAA

30h 33m

2 stops

₹ 121,332Qatar Airways

Tue, 26 May - Mon, 5 Oct

22:05 - 21:16

MAA

STL

33h 41m

2 stops

17:18 - 02:30

STL

MAA

22h 42m

2 stops

₹ 125,649Emirates

Mon, 25 May - Mon, 5 Oct

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

8 Jun

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

11 Nov

ORD13:10Chicago O'Hare Intl

31h 30m

1 stop

MAA08:10Chennai

₹ 76,853

Etihad Airways

11 May

MAA10:15Chennai

32h 50m

1 stop

ORD08:35Chicago O'Hare Intl

7 Nov

ORD13:10Chicago O'Hare Intl

25h 50m

1 stop

MAA02:30Chennai

₹ 76,947

Etihad Airways

19 May

MAA04:05Chennai

39h 00m

1 stop

ORD08:35Chicago O'Hare Intl

11 Aug

ORD21:10Chicago O'Hare Intl

31h 25m

1 stop

MAA15:05Chennai

₹ 78,542

Lufthansa flights from Chennai to Illinois

Our best Lufthansa deals on Chennai to Illinois flight tickets

Lufthansa

27 Apr

MAA05:55Chennai

41h 30m

2 stops

ORD12:55Chicago O'Hare Intl

27 Aug

ORD15:10Chicago O'Hare Intl

31h 15m

2 stops

MAA08:55Chennai

₹ 115,984

Lufthansa

9 Jun

MAA01:55Chennai

22h 00m

1 stop

STL13:25Lambert-St Louis

16 Sept

STL12:30Lambert-St Louis

25h 10m

2 stops

MAA00:10Chennai

₹ 147,232

Lufthansa

15 Jun

MAA01:55Chennai

28h 01m

2 stops

STL19:26Lambert-St Louis

11 Aug

STL15:30Lambert-St Louis

22h 10m

1 stop

MAA00:10Chennai

₹ 153,707

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 8/6

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Wed 11/11

13:10-08:10

1 stop31h 30m

₹ 76,853

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 11/5

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Sat 7/11

13:10-02:30

1 stop25h 50m

₹ 76,947

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 19/5

04:05-08:35

1 stop39h 00m

Chicago O'Hare Intl

Tue 11/8

21:10-15:05

1 stop31h 25m

₹ 78,542

Fastest return journey

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 19/5

21:55-08:35

1 stop21h 10m

Chicago O'Hare Intl

Tue 11/8

21:10-08:25

1 stop24h 45m

₹ 78,636

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 11/5

10:15-08:35

1 stop32h 50m

Chicago O'Hare Intl

Wed 4/11

13:10-02:30

1 stop25h 50m

₹ 79,387

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 12/5

21:55-14:03

2 stops26h 38m

Lambert-St Louis

Tue 20/10

09:47-02:25

2 stops30h 08m

₹ 101,251

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 13/5

21:55-16:41

2 stops29h 16m

Lambert-St Louis

Wed 4/11

06:00-02:30

2 stops33h 00m

₹ 104,723

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 11/6

04:25-23:54

2 stops29h 59m

Lambert-St Louis

Wed 12/8

09:45-02:50

2 stops30h 35m

₹ 120,676

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 26/5

04:25-23:54

2 stops29h 59m

Lambert-St Louis

Mon 5/10

09:47-02:50

2 stops30h 33m

₹ 121,332

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 25/5

22:05-21:16

2 stops33h 41m

Lambert-St Louis

Mon 5/10

17:18-02:30

2 stops22h 42m

₹ 125,649

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 ₹ 82,671. 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 ₹ 85,956.

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 ₹ 96,512 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 ₹ 85,017 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 ₹ 71,471	Free Cancellation	Rating 7.3 1,430 reviews	Search Etihad Airways flights
Air India	PriceFrom ₹ 75,360	Free Cancellation	Rating 5.5 2,968 reviews	Search Air India flights
Qatar Airways	PriceFrom ₹ 83,290	Free Cancellation	Rating 7.4 3,728 reviews	Search Qatar Airways flights
British Airways	PriceFrom ₹ 90,510	Free Cancellation	Rating 6.7 7,884 reviews	Search British Airways flights
Emirates	PriceFrom ₹ 91,088	Free Cancellation	Rating 8.1 3,559 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.