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Cheap flights from Chennai to Illinois from $443

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chennai to Illinois departing on 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chennai to Illinois

Cheap round-trip flights

Air India Logo
1:00 am - 7:25 amMAA-ORD
40h 55m1 stop
Air India Logo
11:00 am - 12:45 pmORD-MAA
38h 15m1 stop
$783Air India
Find Deal
Mon, Sep 15 - Mon, Dec 8
Air India Logo
1:00 am - 7:25 amMAA-ORD
40h 55m1 stop
Air India Logo
11:00 am - 7:10 pmORD-MAA
20h 40m1 stop
$820Air India
Find Deal
Mon, Sep 15 - Sun, Dec 7
Air India Logo
8:40 pm - 7:25 amMAA-ORD
21h 15m1 stop
Air India Logo
11:00 am - 7:10 pmORD-MAA
20h 40m1 stop
$836Air India
Find Deal
Tue, Sep 16 - Sat, Feb 14
Etihad Airways Logo
4:25 am - 8:45 amMAA-ORD
38h 50m1 stop
Etihad Airways Logo
1:10 pm - 2:30 amORD-MAA
25h 50m1 stop
$868Etihad Airways
Find Deal
Wed, Sep 10 - Wed, Mar 4
Etihad Airways Logo
10:15 am - 8:45 amMAA-ORD
33h 00m1 stop
Etihad Airways Logo
1:55 pm - 8:30 amORD-MAA
32h 05m1 stop
$884Etihad Airways
Find Deal
Thu, Sep 4 - Mon, Sep 22
Lufthansa Logo
1:55 am - 12:55 pmMAA-ORD
21h 30m1 stop
Lufthansa Logo
3:20 pm - 12:05 amORD-MAA
21h 15m1 stop
$960Lufthansa
Find Deal
Tue, Sep 16 - Wed, Mar 4
British Airways Logo
5:35 am - 8:48 pmMAA-STL
25h 43m2 stops
British Airways Logo
8:42 am - 3:30 amSTL-MAA
32h 18m2 stops
$1,025British Airways
Find Deal
Sat, Oct 4 - Wed, Oct 8
British Airways Logo
5:35 am - 11:48 pmMAA-STL
52h 43m2 stops
British Airways Logo
10:36 am - 3:30 amSTL-MAA
30h 24m2 stops
$1,028British Airways
Find Deal
Sat, Oct 4 - Wed, Oct 8
Qatar Airways Logo
4:20 am - 11:59 pmMAA-STL
30h 09m2 stops
Qatar Airways Logo
4:19 pm - 2:50 amSTL-MAA
24h 01m2 stops
$1,502Qatar Airways
Find Deal
Tue, Aug 26 - Tue, Sep 2
Lufthansa Logo
6:40 am - 9:32 pmMAA-STL
49h 22m3 stops
Lufthansa Logo
8:15 am - 12:10 amSTL-MAA
29h 25m2 stops
$1,696Lufthansa
Find Deal
Tue, Aug 26 - Tue, Sep 2

Air India flights from Chennai to Illinois

Our best Air India deals on Chennai to Illinois flight tickets
Air India
Sep 15
MAA1:00 amChennai
40h 55m
1 stop
ORD7:25 amChicago O'Hare Intl
Dec 8
ORD11:00 amChicago O'Hare Intl
38h 15m
1 stop
MAA12:45 pmChennai
$783
Find similar
Air India
Sep 15
MAA1:00 amChennai
40h 55m
1 stop
ORD7:25 amChicago O'Hare Intl
Dec 7
ORD11:00 amChicago O'Hare Intl
20h 40m
1 stop
MAA7:10 pmChennai
$820
Find similar
Air India
Sep 16
MAA8:40 pmChennai
21h 15m
1 stop
ORD7:25 amChicago O'Hare Intl
Feb 14
ORD11:00 amChicago O'Hare Intl
20h 40m
1 stop
MAA7:10 pmChennai
$836
Find similar

Etihad Airways flights from Chennai to Illinois

Our best Etihad Airways deals on Chennai to Illinois flight tickets
Etihad Airways
Sep 10
MAA4:25 amChennai
38h 50m
1 stop
ORD8:45 amChicago O'Hare Intl
Mar 4
ORD1:10 pmChicago O'Hare Intl
25h 50m
1 stop
MAA2:30 amChennai
$868
Find similar
Etihad Airways
Sep 4
MAA10:15 amChennai
33h 00m
1 stop
ORD8:45 amChicago O'Hare Intl
Sep 22
ORD1:55 pmChicago O'Hare Intl
32h 05m
1 stop
MAA8:30 amChennai
$884
Find similar
Etihad Airways
Sep 17
MAA10:15 amChennai
33h 00m
1 stop
ORD8:45 amChicago O'Hare Intl
Mar 4
ORD1:10 pmChicago O'Hare Intl
25h 50m
1 stop
MAA2:30 amChennai
$911
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chennai to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Chennai to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 9/15

1:00 am-7:25 am

1 stop40h 55m

Chicago O'Hare Intl

Mon 12/8

11:00 am-12:45 pm

1 stop38h 15m

$783

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Mon 9/15

1:00 am-7:25 am

1 stop40h 55m

Chicago O'Hare Intl

Sun 12/7

11:00 am-7:10 pm

1 stop20h 40m

$820

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 9/16

8:40 pm-7:25 am

1 stop21h 15m

Chicago O'Hare Intl

Sat 2/14

11:00 am-7:10 pm

1 stop20h 40m

$836

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Wed 9/10

4:25 am-8:45 am

1 stop38h 50m

Chicago O'Hare Intl

Wed 3/4

1:10 pm-2:30 am

1 stop25h 50m

$868

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Thu 9/4

10:15 am-8:45 am

1 stop33h 00m

Chicago O'Hare Intl

Mon 9/22

1:55 pm-8:30 am

1 stop32h 05m

$884

ChennaiChicago

MAA - ORD

MAAORD

Chennai

Tue 9/16

1:55 am-12:55 pm

1 stop21h 30m

Chicago O'Hare Intl

Wed 3/4

3:20 pm-12:05 am

1 stop21h 15m

$960

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sat 10/4

5:35 am-8:48 pm

2 stops25h 43m

Lambert-St Louis

Wed 10/8

8:42 am-3:30 am

2 stops32h 18m

$1,025

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sat 10/4

5:35 am-11:48 pm

2 stops52h 43m

Lambert-St Louis

Wed 10/8

10:36 am-3:30 am

2 stops30h 24m

$1,028

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 8/26

4:20 am-11:59 pm

2 stops30h 09m

Lambert-St Louis

Tue 9/2

4:19 pm-2:50 am

2 stops24h 01m

$1,502

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 8/26

6:40 am-9:32 pm

3 stops49h 22m

Lambert-St Louis

Tue 9/2

8:15 am-12:10 am

2 stops29h 25m

$1,696

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

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

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Chennai is in November. Flight prices, which tend to average around $899, 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 November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $1,037.

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

The cheapest day to depart from Chennai to Illinois is on a Thursday when prices can be found for as low as $1,119. Flights from Chennai to Illinois on a Saturday will generally be more expensive and average around $1,378. 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?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Chennai to Illinois during this time can be as low as $1,183. Flights in the morning are often more expensive with an average ticket price of $1,370.

What is the cheapest Chennai to Illinois flight route?

Fly from Chennai to Chicago O'Hare Intl for the best Chennai - Illinois flight prices

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 $1,146 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 $986 on momondo.

What cabin class options are available on Chennai to Illinois flights?

There are 1 cabin classes available to choose from on Chennai to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chennai to Illinois flights?

You could potentially save up to 6% 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

Best Price Found

$443

Fastest flight time

20h 10m

Direct flights

None

Airports in Illinois

2 airports
The best one-way flight to Illinois from Chennai in the past 72 hours is $443. The best round-trip flight deal from Chennai to Illinois found on momondo in the last 72 hours is $783.
The fastest flight from Chennai to Illinois takes 20h 10m
There are no direct flights from Chennai to Illinois. Popular non-direct route for this connection is Chennai Airport - Chicago O'Hare Intl Airport.
There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Lambert-St Louis (STL)
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?

  • 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
Air IndiaPriceFrom $820Free CancellationRating
5.5
2,928 reviews
Search Air India flights
British AirwaysPriceFrom $863Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
Etihad AirwaysPriceFrom $877Free CancellationRating
7.4
1,230 reviews
Search Etihad Airways flights
Qatar AirwaysPriceFrom $933Free CancellationRating
7.4
3,609 reviews
Search Qatar Airways flights
LufthansaPriceFrom $977Free CancellationRating
6.8
7,275 reviews
Search Lufthansa flights
EmiratesPriceFrom $986Free CancellationRating
8.1
3,300 reviews
Search Emirates 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.

An easier way to manage your Illinois trip

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