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Cheap flights from Illinois to Chennai from $331

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Chennai departing on 10/20. 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 Illinois to Chennai

Cheap round-trip flights

Etihad Airways Logo
1:10 pm - 7:55 pmORD-MAA
19h 15m1 stop
Etihad Airways Logo
3:55 am - 7:35 amMAA-ORD
39h 10m1 stop
$755Etihad Airways
Find Deal
Mon, Nov 24 - Wed, Dec 10
Cathay Pacific Logo
2:35 pm - 12:35 amORD-MAA
22h 30m1 stop
Cathay Pacific Logo
2:00 am - 12:55 pmMAA-ORD
22h 25m1 stop
$757Cathay Pacific
Find Deal
Sun, Nov 23 - Tue, Dec 16
British Airways Logo
9:45 pm - 5:35 amORD-MAA
20h 20m1 stop
British Airways Logo
7:35 am - 6:45 pmMAA-ORD
22h 40m1 stop
$763British Airways
Find Deal
Wed, Jan 21 - Tue, Feb 10
Qatar Airways Logo
6:50 pm - 9:10 amORD-MAA
26h 50m1 stop
Qatar Airways Logo
9:50 pm - 2:30 pmMAA-ORD
28h 10m1 stop
$767Qatar Airways
Find Deal
Thu, Nov 13 - Thu, Nov 20
British Airways Logo
9:45 pm - 5:35 amORD-MAA
20h 20m1 stop
British Airways Logo
7:35 am - 1:50 pmMAA-ORD
41h 45m1 stop
$768British Airways
Find Deal
Tue, Jan 13 - Tue, Feb 10
IndiGo Logo
8:20 pm - 1:55 pmORD-MAA
30h 05m2 stops
IndiGo Logo
10:45 pm - 6:25 pmMAA-ORD
31h 10m2 stops
$779IndiGo
Find Deal
Thu, Nov 13 - Fri, Dec 5
Multiple Airlines Logo
5:10 pm - 8:55 amORD-MAA
29h 15m2 stops
Multiple Airlines Logo
1:50 am - 1:10 pmMAA-ORD
22h 50m1 stop
$785Multiple Airlines
Find Deal
Mon, Oct 27 - Sun, Nov 2
Qatar Airways Logo
6:50 pm - 9:10 amORD-MAA
26h 50m1 stop
Qatar Airways Logo
9:50 pm - 2:30 pmMAA-ORD
28h 10m1 stop
$793Qatar Airways
Find Deal
Sun, Nov 16 - Fri, Dec 5
Multiple Airlines Logo
3:35 pm - 12:05 amORD-MAA
45h 00m2 stops
Multiple Airlines Logo
9:35 am - 5:20 pmMAA-ORD
42h 15m2 stops
$824Multiple Airlines
Find Deal
Sun, Feb 22 - Tue, Mar 24
IndiGo Logo
8:20 pm - 6:05 pmORD-MAA
34h 15m2 stops
IndiGo Logo
2:45 pm - 6:25 pmMAA-ORD
39h 10m2 stops
$833IndiGo
Find Deal
Tue, Dec 30 - Sat, Jan 24

Cathay Pacific flights from Illinois to Chennai

Our best Cathay Pacific deals on Illinois to Chennai flight tickets
Cathay Pacific
Nov 23
ORD2:35 pmChicago O'Hare Intl
22h 30m
1 stop
MAA12:35 amChennai
Dec 16
MAA2:00 amChennai
22h 25m
1 stop
ORD12:55 pmChicago O'Hare Intl
$757
Find similar
Cathay Pacific
Jan 10
ORD2:35 pmChicago O'Hare Intl
22h 30m
1 stop
MAA12:35 amChennai
Jan 26
MAA2:00 amChennai
22h 25m
1 stop
ORD12:55 pmChicago O'Hare Intl
$764
Find similar
Cathay Pacific
Nov 7
ORD2:35 pmChicago O'Hare Intl
22h 30m
1 stop
MAA12:35 amChennai
Dec 23
MAA2:00 amChennai
22h 25m
1 stop
ORD12:55 pmChicago O'Hare Intl
$765
Find similar

British Airways flights from Illinois to Chennai

Our best British Airways deals on Illinois to Chennai flight tickets
British Airways
Jan 21
ORD9:45 pmChicago O'Hare Intl
20h 20m
1 stop
MAA5:35 amChennai
Feb 10
MAA7:35 amChennai
22h 40m
1 stop
ORD6:45 pmChicago O'Hare Intl
$763
Find similar
British Airways
Jan 13
ORD9:45 pmChicago O'Hare Intl
20h 20m
1 stop
MAA5:35 amChennai
Feb 10
MAA7:35 amChennai
41h 45m
1 stop
ORD1:50 pmChicago O'Hare Intl
$768
Find similar
British Airways
Feb 6
ORD5:10 pmChicago O'Hare Intl
24h 55m
1 stop
MAA5:35 amChennai
Feb 25
MAA7:35 amChennai
22h 40m
1 stop
ORD6:45 pmChicago O'Hare Intl
$792
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Chennai 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 September 30, 2025.
Use the filters below to find and compare flights from Illinois to Chennai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 11/24

1:10 pm-7:55 pm

1 stop19h 15m

Chennai

Wed 12/10

3:55 am-7:35 am

1 stop39h 10m

$755

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 11/23

2:35 pm-12:35 am

1 stop22h 30m

Chennai

Tue 12/16

2:00 am-12:55 pm

1 stop22h 25m

$757

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 1/21

9:45 pm-5:35 am

1 stop20h 20m

Chennai

Tue 2/10

7:35 am-6:45 pm

1 stop22h 40m

$763

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Thu 11/13

6:50 pm-9:10 am

1 stop26h 50m

Chennai

Thu 11/20

9:50 pm-2:30 pm

1 stop28h 10m

$767

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Tue 1/13

9:45 pm-5:35 am

1 stop20h 20m

Chennai

Tue 2/10

7:35 am-1:50 pm

1 stop41h 45m

$768

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Thu 11/13

8:20 pm-1:55 pm

2 stops30h 05m

Chennai

Fri 12/5

10:45 pm-6:25 pm

2 stops31h 10m

$779

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 10/27

5:10 pm-8:55 am

2 stops29h 15m

Chennai

Sun 11/2

1:50 am-1:10 pm

1 stop22h 50m

$785

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 11/16

6:50 pm-9:10 am

1 stop26h 50m

Chennai

Fri 12/5

9:50 pm-2:30 pm

1 stop28h 10m

$793

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 2/22

3:35 pm-12:05 am

2 stops45h 00m

Chennai

Tue 3/24

9:35 am-5:20 pm

2 stops42h 15m

$824

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Tue 12/30

8:20 pm-6:05 pm

2 stops34h 15m

Chennai

Sat 1/24

2:45 pm-6:25 pm

2 stops39h 10m

$833

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 Chennai from

How to get the cheapest flight ticket from Illinois to Chennai

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 Chennai?

In general, April is the cheapest month to fly from Illinois to Chennai. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $838. If you’re not able to fly to Chennai in April, then October is your next best option. Flight prices from Illinois to Chennai during October average around $854.

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

The cheapest day to depart on your flight to Chennai is on a Thursday when prices can be found for as low as $1,010. This is often the case because there is less demand to fly during this day of the week. Flights from Illinois to Chennai on a Wednesday will generally be more expensive and average around $1,401. 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 Chennai?

In the morning is the cheapest time of day to fly from Illinois to Chennai when you can find flight prices for as low as $1,115. Flying to Chennai in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Chennai is in the evening when prices are around $1,343.

What is the cheapest Illinois to Chennai flight route?

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

How far in advance should I book a flight to Chennai?

You are more likely to see cheaper flights to Chennai from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Chennai 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 Chennai from Illinois for as low as $950 on momondo.

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

There is only 1 cabin class available to choose from on Illinois to Chennai 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 Illinois to Chennai flights?

You could potentially save up to 13% on your flight if you consider stops on a Illinois to Chennai flight.

Cheap Illinois to Chennai flight deals and tips

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

Best Price Found

$1,180

Direct flights

None
The best flight deal from Illinois to Chennai found on momondo in the last 72 hours is $1,180
There are no direct flights from Illinois to Chennai. There are no popular flight routes from Illinois to Chennai.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Chennai Airport?

    Prices for flights from Illinois to Chennai Airport are updated daily.

  • How many operators does momondo search for flights from Illinois to Chennai Airport?

  • How old do you have to be to fly from Illinois to Chennai Airport?

    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 Illinois to Chennai Airport.

  • What documentation or ID do you need to fly to Chennai Airport?

    The required travel and health documents for your Chennai Airport 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 Chennai Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Illinois to Chennai?

Best airlines flying from Illinois to Chennai

Compare and see reviews for airlines that fly from Illinois to Chennai with momondo
Airline
Rating
Free Cancellation
Price
Air IndiaPriceFrom $696Free CancellationRating
5.5
2,935 reviews
Search Air India flights
Etihad AirwaysPriceFrom $761Free CancellationRating
7.4
1,265 reviews
Search Etihad Airways flights
British AirwaysPriceFrom $763Free CancellationRating
6.7
7,410 reviews
Search British Airways flights
EmiratesPriceFrom $765Free CancellationRating
8.1
3,355 reviews
Search Emirates flights
Qatar AirwaysPriceFrom $798Free CancellationRating
7.4
3,637 reviews
Search Qatar Airways flights
LufthansaPriceFrom $834Free CancellationRating
6.8
7,439 reviews
Search Lufthansa flights
Oman AirPriceFrom $1,019Free CancellationRating
8.3
95 reviews
Search Oman Air flights
IndiGoPriceFrom $1,020Free CancellationRating
6.9
485 reviews
Search IndiGo flights
Ethiopian AirPriceFrom $1,069Free CancellationRating
7.2
865 reviews
Search Ethiopian Air flights
SWISSPriceFrom $1,088Free CancellationRating
7.6
1,752 reviews
Search SWISS flights

Traveling to a place near Chennai?

Book flights to Chennai if you plan to visit one of these locations
Mahabalipuram
Vellore

Why use momondo?

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

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 Chennai from Illinois.

Can I find flights from Illinois to Chennai with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Chennai flights to just show those with flexible booking policies.

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

Once all potential Illinois to Chennai 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 Illinois to Chennai right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chennai from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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