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Cheap flights from Illinois to Chennai from $350

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 2/4. 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

Enter your travel dates to find the best prices.
Air India Logo
1:10 pm - 4:55 am
ORD
-
MAA
29h 15m
1 stop
Air India Logo
9:50 am - 11:10 am
MAA
-
ORD
35h 50m
1 stop
$717Air India
Mon, May 11 - Tue, Jun 16
Etihad Airways Logo
2:10 pm - 7:55 pm
ORD
-
MAA
19h 15m
1 stop
Etihad Airways Logo
4:35 pm - 8:35 am
MAA
-
ORD
26h 30m
1 stop
$722Etihad Airways
Wed, Mar 11 - Wed, May 6
Air India Logo
1:30 pm - 8:55 am
ORD
-
MAA
31h 55m
1 stop
Air India Logo
9:40 pm - 12:30 pm
MAA
-
ORD
25h 20m
1 stop
$724Air India
Sun, Feb 22 - Sun, Mar 15
Air India Logo
1:30 pm - 4:55 am
ORD
-
MAA
27h 55m
1 stop
Air India Logo
4:20 pm - 12:30 pm
MAA
-
ORD
30h 40m
2 stops
$729Air India
Wed, Feb 25 - Thu, Mar 12
Multiple Airlines Logo
7:00 am - 8:10 pm
STL
-
MAA
26h 40m
2 stops
Multiple Airlines Logo
9:55 pm - 7:30 pm
MAA
-
STL
32h 05m
2 stops
$932Multiple Airlines
Sun, Apr 12 - Sun, May 3
Qatar Airways Logo
4:05 pm - 2:30 am
STL
-
MAA
22h 55m
2 stops
Qatar Airways Logo
4:05 am - 5:58 pm
MAA
-
STL
25h 23m
2 stops
$969Qatar Airways
Wed, Feb 18 - Mon, Mar 2
Qatar Airways Logo
2:00 pm - 2:30 am
STL
-
MAA
25h 00m
2 stops
Qatar Airways Logo
4:05 am - 11:44 pm
MAA
-
STL
30h 09m
2 stops
$970Qatar Airways
Sun, Feb 22 - Tue, Mar 10
Lufthansa Logo
1:24 pm - 8:45 am
PIA
-
MAA
31h 51m
3 stops
Lufthansa Logo
1:50 am - 9:26 pm
MAA
-
PIA
31h 06m
2 stops
$1,199Lufthansa
Sat, Feb 7 - Fri, Feb 13
Lufthansa Logo
1:24 pm - 12:05 am
PIA
-
MAA
23h 11m
2 stops
Lufthansa Logo
1:50 am - 9:26 pm
MAA
-
PIA
31h 06m
2 stops
$1,217Lufthansa
Sat, Feb 7 - Fri, Feb 13
Multiple Airlines Logo
11:05 am - 5:35 am
MDW
-
MAA
31h 00m
2 stops
Multiple Airlines Logo
7:35 am - 3:20 pm
MAA
-
MDW
66h 15m
2 stops
$7,340Multiple Airlines
Fri, Feb 27 - Fri, Mar 20

Etihad Airways flights from Illinois to Chennai

Our best Etihad Airways deals on Illinois to Chennai flight tickets
Etihad Airways
Mar 11
ORD2:10 pmChicago O'Hare Intl
19h 15m
1 stop
MAA7:55 pmChennai
May 6
MAA4:35 pmChennai
26h 30m
1 stop
ORD8:35 amChicago O'Hare Intl
$722
Etihad Airways
Feb 11
ORD1:10 pmChicago O'Hare Intl
25h 50m
1 stop
MAA2:30 amChennai
Feb 17
MAA3:55 amChennai
39h 10m
1 stop
ORD7:35 amChicago O'Hare Intl
$733
Etihad Airways
Feb 16
ORD1:10 pmChicago O'Hare Intl
19h 15m
1 stop
MAA7:55 pmChennai
Feb 23
MAA4:10 pmChennai
26h 55m
1 stop
ORD7:35 amChicago O'Hare Intl
$742

Air India flights from Illinois to Chennai

Our best Air India deals on Illinois to Chennai flight tickets
Air India
May 11
ORD1:10 pmChicago O'Hare Intl
29h 15m
1 stop
MAA4:55 amChennai
Jun 16
MAA9:50 amChennai
35h 50m
1 stop
ORD11:10 amChicago O'Hare Intl
$717
Air India
Feb 2
ORD1:30 pmChicago O'Hare Intl
21h 40m
1 stop
MAA10:40 pmChennai
Feb 10
MAA8:00 pmChennai
27h 00m
2 stops
ORD11:30 amChicago O'Hare Intl
$722
Air India
Feb 22
ORD1:30 pmChicago O'Hare Intl
31h 55m
1 stop
MAA8:55 amChennai
Mar 15
MAA9:40 pmChennai
25h 20m
1 stop
ORD12:30 pmChicago O'Hare Intl
$724

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 January 28, 2026.
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 5/11

1:10 pm-4:55 am

1 stop29h 15m

Chennai

Tue 6/16

9:50 am-11:10 am

1 stop35h 50m

$717

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 3/11

2:10 pm-7:55 pm

1 stop19h 15m

Chennai

Wed 5/6

4:35 pm-8:35 am

1 stop26h 30m

$722

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 2/22

1:30 pm-8:55 am

1 stop31h 55m

Chennai

Sun 3/15

9:40 pm-12:30 pm

1 stop25h 20m

$724

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 2/25

1:30 pm-4:55 am

1 stop27h 55m

Chennai

Thu 3/12

4:20 pm-12:30 pm

2 stops30h 40m

$729

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sun 4/12

7:00 am-8:10 pm

2 stops26h 40m

Chennai

Sun 5/3

9:55 pm-7:30 pm

2 stops32h 05m

$932

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 2/18

4:05 pm-2:30 am

2 stops22h 55m

Chennai

Mon 3/2

4:05 am-5:58 pm

2 stops25h 23m

$969

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sun 2/22

2:00 pm-2:30 am

2 stops25h 00m

Chennai

Tue 3/10

4:05 am-11:44 pm

2 stops30h 09m

$970

PeoriaChennai

PIA - MAA

PIAMAA

Greater Peoria

Sat 2/7

1:24 pm-8:45 am

3 stops31h 51m

Chennai

Fri 2/13

1:50 am-9:26 pm

2 stops31h 06m

$1,199

PeoriaChennai

PIA - MAA

PIAMAA

Greater Peoria

Sat 2/7

1:24 pm-12:05 am

2 stops23h 11m

Chennai

Fri 2/13

1:50 am-9:26 pm

2 stops31h 06m

$1,217

ChicagoChennai

MDW - MAA

MDWMAA

Chicago Midway

Fri 2/27

11:05 am-5:35 am

2 stops31h 00m

Chennai

Fri 3/20

7:35 am-3:20 pm

2 stops66h 15m

$7,340

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 $832. If you’re not able to fly to Chennai in April, then February is your next best option. Flight prices from Illinois to Chennai during February average around $855.

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 Tuesday when prices can be found for as low as $1,115. 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 Monday will generally be more expensive and average around $1,308. 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 $1,049 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 $880 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 40% 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

Fastest flight time

19h 15m

Direct flights

None
The fastest flight from Illinois to Chennai takes 19h 15m
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.

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
Cathay PacificPriceFrom $598Free CancellationRating
7.6
1,148 reviews
Search Cathay Pacific flights
Air IndiaPriceFrom $688Free CancellationRating
5.5
2,978 reviews
Search Air India flights
Etihad AirwaysPriceFrom $736Free CancellationRating
7.3
1,375 reviews
Search Etihad Airways flights
Qatar AirwaysPriceFrom $791Free CancellationRating
7.4
3,730 reviews
Search Qatar Airways flights
British AirwaysPriceFrom $804Free CancellationRating
6.7
7,705 reviews
Search British Airways flights
LufthansaPriceFrom $832Free CancellationRating
6.8
7,752 reviews
Search Lufthansa flights
IndiGoPriceFrom $917Free CancellationRating
6.8
528 reviews
Search IndiGo flights
EmiratesPriceFrom $918Free CancellationRating
8.1
3,489 reviews
Search Emirates flights
SWISSPriceFrom $1,058Free CancellationRating
7.6
1,863 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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