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

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

What airlines fly to Illinois?

Etihad Airways, Emirates and Qatar 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 45% of people opting to fly with this airline when traveling 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?

There are 6 operators available for flights from Chennai Airport to Illinois as of February 2026.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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.

$424 Cheap Flights from Chennai to Illinois in 2026

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Find the cheapest flights from Chennai to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:45 pm - 8:35 am

MAA

ORD

27h 20m

1 stop

2:00 pm - 2:25 am

ORD

MAA

25h 55m

1 stop

$757Etihad Airways

Sun, Mar 22 - Sun, Apr 5

3:45 pm - 8:35 am

MAA

ORD

27h 20m

1 stop

2:00 pm - 8:10 pm

ORD

MAA

19h 40m

1 stop

$758Etihad Airways

Sun, Mar 22 - Sun, Mar 29

10:00 am - 7:35 am

MAA

ORD

33h 05m

1 stop

4:00 pm - 11:35 pm

ORD

MAA

45h 05m

1 stop

$760Multiple Airlines

Wed, Feb 25 - Tue, Aug 18

10:15 am - 1:22 pm

MAA

STL

37h 37m

2 stops

9:47 am - 2:25 am

STL

MAA

30h 08m

2 stops

$989Multiple Airlines

Tue, Apr 21 - Tue, Oct 13

5:35 am - 11:46 pm

MAA

STL

28h 41m

2 stops

4:51 pm - 3:30 am

STL

MAA

24h 09m

2 stops

$1,005British Airways

Thu, Apr 23 - Mon, Oct 19

5:35 am - 7:19 pm

MAA

STL

48h 14m

2 stops

7:44 am - 3:30 am

STL

MAA

33h 16m

2 stops

$1,122British Airways

Mon, Jul 20 - Sun, Sep 20

1:55 am - 1:25 pm

MAA

STL

22h 00m

1 stop

3:30 pm - 12:10 am

STL

MAA

22h 10m

1 stop

$1,265Lufthansa

Tue, Apr 21 - Mon, Oct 19

1:55 am - 10:56 pm

MAA

STL

31h 31m

2 stops

12:23 pm - 12:10 am

STL

MAA

25h 17m

2 stops

$1,271Lufthansa

Tue, Apr 21 - Tue, Oct 20

1:55 am - 3:24 pm

MAA

STL

23h 59m

2 stops

12:10 pm - 12:10 am

STL

MAA

25h 30m

2 stops

$1,279Air Canada

Thu, Apr 23 - Wed, Oct 14

1:55 am - 3:24 pm

MAA

STL

47h 59m

2 stops

8:55 am - 12:10 am

STL

MAA

28h 45m

2 stops

$1,284Air Canada

Tue, Apr 21 - Sun, Oct 18

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets

Etihad Airways

Mar 22

MAA3:45 pmChennai

27h 20m

1 stop

ORD8:35 amChicago O'Hare Intl

Apr 5

ORD2:00 pmChicago O'Hare Intl

25h 55m

1 stop

MAA2:25 amChennai

$757

Etihad Airways

Mar 22

MAA3:45 pmChennai

27h 20m

1 stop

ORD8:35 amChicago O'Hare Intl

Mar 29

ORD2:00 pmChicago O'Hare Intl

19h 40m

1 stop

MAA8:10 pmChennai

$758

Etihad Airways

Mar 13

MAA3:25 pmChennai

27h 40m

1 stop

ORD8:35 amChicago O'Hare Intl

Apr 28

ORD2:00 pmChicago O'Hare Intl

19h 40m

1 stop

MAA8:10 pmChennai

$761

Emirates flights from Chennai to Illinois

Our best Emirates deals on Chennai to Illinois flight tickets

Emirates

Feb 22

MAA9:45 pmChennai

28h 40m

1 stop

ORD2:55 pmChicago O'Hare Intl

Aug 19

ORD8:35 pmChicago O'Hare Intl

25h 00m

1 stop

MAA8:05 amChennai

$1,070

Emirates

Feb 22

MAA9:45 pmChennai

28h 40m

1 stop

ORD2:55 pmChicago O'Hare Intl

Aug 15

ORD8:35 pmChicago O'Hare Intl

25h 00m

1 stop

MAA8:05 amChennai

$1,100

Emirates

Feb 22

MAA9:45 pmChennai

28h 40m

1 stop

ORD2:55 pmChicago O'Hare Intl

Aug 15

ORD8:35 pmChicago O'Hare Intl

25h 00m

1 stop

MAA8:05 amChennai

$1,101

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 3/22

3:45 pm-8:35 am

1 stop27h 20m

Chicago O'Hare Intl

Sun 4/5

2:00 pm-2:25 am

1 stop25h 55m

$757

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Sun 3/22

3:45 pm-8:35 am

1 stop27h 20m

Chicago O'Hare Intl

Sun 3/29

2:00 pm-8:10 pm

1 stop19h 40m

$758

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 2/25

10:00 am-7:35 am

1 stop33h 05m

Chicago O'Hare Intl

Tue 8/18

4:00 pm-11:35 pm

1 stop45h 05m

$760

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 4/21

10:15 am-1:22 pm

2 stops37h 37m

Lambert-St Louis

Tue 10/13

9:47 am-2:25 am

2 stops30h 08m

$989

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 4/23

5:35 am-11:46 pm

2 stops28h 41m

Lambert-St Louis

Mon 10/19

4:51 pm-3:30 am

2 stops24h 09m

$1,005

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 7/20

5:35 am-7:19 pm

2 stops48h 14m

Lambert-St Louis

Sun 9/20

7:44 am-3:30 am

2 stops33h 16m

$1,122

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 4/21

1:55 am-1:25 pm

1 stop22h 00m

Lambert-St Louis

Mon 10/19

3:30 pm-12:10 am

1 stop22h 10m

$1,265

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 4/21

1:55 am-10:56 pm

2 stops31h 31m

Lambert-St Louis

Tue 10/20

12:23 pm-12:10 am

2 stops25h 17m

$1,271

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 4/23

1:55 am-3:24 pm

2 stops23h 59m

Lambert-St Louis

Wed 10/14

12:10 pm-12:10 am

2 stops25h 30m

$1,279

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 4/21

1:55 am-3:24 pm

2 stops47h 59m

Lambert-St Louis

Sun 10/18

8:55 am-12:10 am

2 stops28h 45m

$1,284

Flights are sorted by cheapest round-trip 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?

The cheapest month to fly to Illinois from Chennai is in October. Flight prices, which tend to average around $881, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $902.

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 $1,065 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Chennai for as low as $940 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

Fastest flight time	21h 15m
Direct flights	None

The fastest flight from Chennai to Illinois takes 21h 15m

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?
There are 6 operators available for flights from Chennai Airport to Illinois as of February 2026.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 $775	Free Cancellation	Rating 7.3 1,387 reviews	Search Etihad Airways flights
Lufthansa	PriceFrom $806	Free Cancellation	Rating 6.8 7,775 reviews	Search Lufthansa flights
Air India	PriceFrom $818	Free Cancellation	Rating 5.5 2,966 reviews	Search Air India flights
Qatar Airways	PriceFrom $825	Free Cancellation	Rating 7.4 3,729 reviews	Search Qatar Airways flights
Emirates	PriceFrom $977	Free Cancellation	Rating 8.1 3,511 reviews	Search Emirates flights
British Airways	PriceFrom $987	Free Cancellation	Rating 6.7 7,720 reviews	Search British Airways flights

Why use momondo?

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

It is quick and easy to find Chennai 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 Chennai to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Chennai which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Chennai 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 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.