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Cheap flights from Illinois to Chennai from $375

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 5/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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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.
Etihad Airways Logo
2:00 pm - 8:10 pm
ORD
-
MAA
19h 40m
1 stop
Etihad Airways Logo
10:15 am - 3:40 pm
MAA
-
ORD
39h 55m
1 stop
$781Etihad Airways
Wed, Apr 29 - Mon, Jun 15
Etihad Airways Logo
2:00 pm - 8:10 pm
ORD
-
MAA
19h 40m
1 stop
Etihad Airways Logo
9:55 pm - 8:35 am
MAA
-
ORD
21h 10m
1 stop
$783Etihad Airways
Wed, May 6 - Tue, May 19
Etihad Airways Logo
9:10 pm - 2:25 am
ORD
-
MAA
18h 45m
1 stop
Etihad Airways Logo
4:05 am - 3:40 pm
MAA
-
ORD
22h 05m
1 stop
$785Etihad Airways
Mon, Aug 31 - Fri, Sep 18
Etihad Airways Logo
2:00 pm - 2:50 am
ORD
-
MAA
26h 20m
1 stop
Etihad Airways Logo
9:55 pm - 8:35 am
MAA
-
ORD
21h 10m
1 stop
$786Etihad Airways
Wed, May 13 - Sun, May 24
Etihad Airways Logo
1:00 pm - 8:15 pm
ORD
-
MAA
20h 45m
1 stop
Etihad Airways Logo
9:55 pm - 9:15 am
MAA
-
ORD
21h 50m
1 stop
$787Etihad Airways
Thu, Apr 9 - Sun, Apr 12
Multiple Airlines Logo
7:00 am - 8:10 pm
STL
-
MAA
26h 40m
2 stops
Multiple Airlines Logo
4:05 am - 11:20 pm
MAA
-
STL
29h 45m
2 stops
$952Multiple Airlines
Wed, Apr 15 - Wed, Sep 9
Multiple Airlines Logo
7:00 am - 8:10 pm
STL
-
MAA
26h 40m
2 stops
Multiple Airlines Logo
4:05 pm - 3:12 pm
MAA
-
STL
33h 37m
2 stops
$953Multiple Airlines
Sun, Apr 19 - Sun, Apr 26
Qatar Airways Logo
4:30 pm - 2:40 am
STL
-
MAA
23h 40m
2 stops
Qatar Airways Logo
4:20 am - 7:33 pm
MAA
-
STL
25h 43m
2 stops
$982Qatar Airways
Wed, May 6 - Wed, May 13
Qatar Airways Logo
4:30 pm - 2:40 am
STL
-
MAA
23h 40m
2 stops
Qatar Airways Logo
3:55 am - 7:33 pm
MAA
-
STL
26h 08m
2 stops
$991Qatar Airways
Wed, May 6 - Tue, May 12
British Airways Logo
7:02 pm - 3:30 am
PIA
-
MAA
21h 58m
2 stops
British Airways Logo
5:35 am - 11:33 pm
MAA
-
PIA
28h 28m
2 stops
$7,577British Airways
Sun, Apr 5 - Thu, Apr 9

Qatar Airways flights from Illinois to Chennai

Our best Qatar Airways deals on Illinois to Chennai flight tickets
Qatar Airways
Apr 5
ORD7:20 pmChicago O'Hare Intl
21h 00m
1 stop
MAA2:50 amChennai
Apr 20
MAA4:20 amChennai
21h 15m
1 stop
ORD3:05 pmChicago O'Hare Intl
$840
Qatar Airways
Apr 6
ORD6:00 amChicago O'Hare Intl
34h 20m
2 stops
MAA2:50 amChennai
Apr 21
MAA4:20 amChennai
21h 15m
1 stop
ORD3:05 pmChicago O'Hare Intl
$903
Qatar Airways
Mar 29
ORD7:20 pmChicago O'Hare Intl
21h 00m
1 stop
MAA2:50 amChennai
Apr 2
MAA4:20 amChennai
21h 15m
1 stop
ORD3:05 pmChicago O'Hare Intl
$905

Etihad Airways flights from Illinois to Chennai

Our best Etihad Airways deals on Illinois to Chennai flight tickets
Etihad Airways
Apr 29
ORD2:00 pmChicago O'Hare Intl
19h 40m
1 stop
MAA8:10 pmChennai
Jun 15
MAA10:15 amChennai
39h 55m
1 stop
ORD3:40 pmChicago O'Hare Intl
$781
Etihad Airways
May 6
ORD2:00 pmChicago O'Hare Intl
19h 40m
1 stop
MAA8:10 pmChennai
May 19
MAA9:55 pmChennai
21h 10m
1 stop
ORD8:35 amChicago O'Hare Intl
$783
Etihad Airways
Apr 1
ORD1:00 pmChicago O'Hare Intl
20h 45m
1 stop
MAA8:15 pmChennai
Apr 12
MAA4:05 amChennai
39h 40m
1 stop
ORD9:15 amChicago O'Hare Intl
$784

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 March 25, 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

Cheapest round-trip

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 4/29

2:00 pm-8:10 pm

1 stop19h 40m

Chennai

Mon 6/15

10:15 am-3:40 pm

1 stop39h 55m

$781
Quickest round-trip

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 5/6

2:00 pm-8:10 pm

1 stop19h 40m

Chennai

Tue 5/19

9:55 pm-8:35 am

1 stop21h 10m

$783

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 8/31

9:10 pm-2:25 am

1 stop18h 45m

Chennai

Fri 9/18

4:05 am-3:40 pm

1 stop22h 05m

$785

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 5/13

2:00 pm-2:50 am

1 stop26h 20m

Chennai

Sun 5/24

9:55 pm-8:35 am

1 stop21h 10m

$786

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Thu 4/9

1:00 pm-8:15 pm

1 stop20h 45m

Chennai

Sun 4/12

9:55 pm-9:15 am

1 stop21h 50m

$787

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 4/15

7:00 am-8:10 pm

2 stops26h 40m

Chennai

Wed 9/9

4:05 am-11:20 pm

2 stops29h 45m

$952

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sun 4/19

7:00 am-8:10 pm

2 stops26h 40m

Chennai

Sun 4/26

4:05 pm-3:12 pm

2 stops33h 37m

$953

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 5/6

4:30 pm-2:40 am

2 stops23h 40m

Chennai

Wed 5/13

4:20 am-7:33 pm

2 stops25h 43m

$982

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 5/6

4:30 pm-2:40 am

2 stops23h 40m

Chennai

Tue 5/12

3:55 am-7:33 pm

2 stops26h 08m

$991

PeoriaChennai

PIA - MAA

PIAMAA

Greater Peoria

Sun 4/5

7:02 pm-3:30 am

2 stops21h 58m

Chennai

Thu 4/9

5:35 am-11:33 pm

2 stops28h 28m

$7,577

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, February 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 February, then April is your next best option. Flight prices from Illinois to Chennai during April average around $841.

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 $1,036 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 $908 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 37% 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

18h 45m

Direct flights

None
The fastest flight from Illinois to Chennai takes 18h 45m
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 $611Free CancellationRating
7.6
1,231 reviews
Search Cathay Pacific flights
Air IndiaPriceFrom $691Free CancellationRating
5.5
2,973 reviews
Search Air India flights
Etihad AirwaysPriceFrom $729Free CancellationRating
7.3
1,429 reviews
Search Etihad Airways flights
SWISSPriceFrom $776Free CancellationRating
7.5
1,904 reviews
Search SWISS flights
British AirwaysPriceFrom $804Free CancellationRating
6.7
7,820 reviews
Search British Airways flights
Qatar AirwaysPriceFrom $805Free CancellationRating
7.4
3,732 reviews
Search Qatar Airways flights
LufthansaPriceFrom $832Free CancellationRating
6.8
7,869 reviews
Search Lufthansa flights
EmiratesPriceFrom $874Free CancellationRating
8.1
3,542 reviews
Search Emirates flights
IndiGoPriceFrom $917Free CancellationRating
6.8
545 reviews
Search IndiGo 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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