HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chennai

$325+ Cheap flights from Illinois to Chennai (MAA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Chennai with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Chennai

Keep the following information in mind while searching for Illinois to Chennai flight deals. Data was last updated September 17, 2025.

Round-trip from

$756
(Indian Eagle)

One-way from

$325
(Indian Eagle)

Popular in

December

Cheapest in

April

Average price

$870

Good round-trip deal

$1,180 or less
From Illinois to Chennai
Search Deals
One-way flight from Illinois to Chennai
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($158 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Chennai.
Search Deals

Find flight deals from Illinois to Chennai

Cheapest flights from Illinois to Chennai
Explore the most affordable flight options available from Illinois to Chennai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Indian Eagle deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:40 pmORD - MAA
1 stop20h 40mQatar Airways
Mon 11/104:05 amMAA - ORD
1 stop21h 55mQatar Airways
Deal found 9/15$756
This oojo deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:50 pmORD - MAA
1 stop26h 50mQatar Airways
Thu 4/304:20 amMAA - ORD
1 stop21h 15mQatar Airways
Deal found 9/16$761
This Gotogate deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/281:55 pmORD - MAA
1 stop32h 05mEtihad Airways
Tue 10/144:25 amMAA - ORD
1 stop38h 50mEtihad Airways
Deal found 9/15$762
This Indian Eagle deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:55 pmORD - MAA
1 stop31h 45mEtihad Airways
Mon 11/39:40 pmMAA - ORD
1 stop21h 45mEtihad Airways
Deal found 9/16$763
This British Airways deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/64:55 pmORD - MAA
1 stop24h 05mBritish Airways
Tue 11/187:35 amMAA - ORD
1 stop41h 45mBritish Airways
Deal found 9/14$764
This British Airways deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/219:15 pmORD - MAA
1 stop19h 45mBritish Airways
Thu 11/137:35 amMAA - ORD
1 stop22h 40mBritish Airways
Deal found 9/15$765
This oojo deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:40 pmORD - MAA
1 stop27h 00mQatar Airways
Wed 11/129:50 pmMAA - ORD
1 stop28h 10mQatar Airways
Deal found 9/17$767
This Gotogate deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/131:55 pmORD - MAA
1 stop32h 05mEtihad Airways
Mon 10/2710:00 amMAA - ORD
1 stop33h 25mEtihad Airways
Deal found 9/17$771
This Gotogate deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/121:55 pmORD - MAA
1 stop26h 15mEtihad Airways
Sun 10/194:25 amMAA - ORD
1 stop38h 50mEtihad Airways
Deal found 9/14$772
This Indian Eagle deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/81:55 pmORD - MAA
1 stop19h 45mEtihad Airways
Sat 11/154:35 pmMAA - ORD
1 stop26h 50mEtihad Airways
Deal found 9/16$773
This oojo deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/51:55 pmORD - MAA
1 stop26h 15mEtihad Airways
Sat 11/153:55 amMAA - ORD
1 stop39h 30mEtihad Airways
Deal found 9/14$775
This FlightHub deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/74:34 pmSTL - MAA
2 stops23h 46mQatar Airways
Tue 10/214:20 amMAA - STL
2 stops27h 03mQatar Airways
Deal found 9/15$1,026

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Illinois to Chennai that are best for you.

Fly from

Illinois

Fly to

Chennai

Route

Depart

Return

Price

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 10/6

4:55 pm-3:30 am

1 stop24h 05m

Chennai

Mon 11/17

7:35 am-1:50 pm

1 stop41h 45m

$764

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Thu 10/2

7:10 pm-3:30 am

1 stop21h 50m

Chennai

Wed 11/19

7:35 am-1:50 pm

1 stop41h 45m

$764

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sat 10/4

7:10 pm-3:30 am

1 stop21h 50m

Chennai

Thu 11/13

7:35 am-6:45 pm

1 stop22h 40m

$799

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 10/5

1:55 pm-3:05 pm

1 stop38h 40m

Chennai

Wed 11/12

3:55 am-7:55 am

1 stop39h 30m

$800

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 10/5

1:55 pm-2:40 am

1 stop26h 15m

Chennai

Fri 11/14

9:40 pm-7:55 am

1 stop21h 45m

$800

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Tue 10/7

1:55 pm-8:10 pm

1 stop19h 45m

Chennai

Mon 11/17

9:40 pm-7:55 am

1 stop21h 45m

$800

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Thu 10/2

7:10 pm-3:30 am

1 stop21h 50m

Chennai

Tue 11/18

7:35 am-5:55 pm

2 stops45h 50m

$807

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Tue 11/18

6:50 pm-9:10 am

1 stop26h 50m

Chennai

Tue 3/31

4:20 am-3:05 pm

1 stop21h 15m

$819

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 10/6

1:43 pm-3:30 am

2 stops27h 17m

Chennai

Mon 10/20

5:35 am-6:15 pm

1 stop23h 10m

$821

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Tue 10/21

9:15 pm-3:30 am

1 stop19h 45m

Chennai

Thu 11/13

7:35 am-8:44 am

2 stops36h 39m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 47 results
1
2
3
...
5

Best time to book a flight from Illinois to Chennai

Have a flexible travel schedule? Discover the best time to fly to Chennai from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Chennai

What is the cheapest month to book a flight from Illinois to Chennai?

Currently, September is the cheapest month in which you can book a flight from Illinois to Chennai (average of $932). Flying from Illinois to Chennai in December is currently the most expensive (average of $1,531). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to MAA?

Find hourly flight availability from Illinois to Chennai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Chennai as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Chennai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Chennai from Illinois?

    Most people fly into Chennai (MAA) if they book a flight to Chennai from Illinois. Chennai is conveniently located just 10.2 mi from Chennai’s city center.

  • How long is the flight from Illinois to Chennai?

    Departing from Illinois to Chennai will take you 23h 46m. The distance between Illinois and Chennai is about 8804 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Chennai one-way?

    To fly one-way, consider booking your trip with Air India, which is currently one of the cheapest options available, starting at $437. IndiGo flights start at $450 while deals on Lufthansa start at $709 one-way.

  • What are the most popular routes from Illinois to Chennai?

    While some choose either Lambert-St Louis - Chennai or Greater Peoria - Chennai, Chicago O'Hare Intl - Chennai is the most popular route from Illinois to Chennai.

  • What are the cheapest flights from Illinois to Chennai?

    On average you can expect to pay $1,326 for a flight from Illinois to Chennai. The cheapest flight overall is $1,157 while the most popular route, (Chicago O'Hare Intl - Chennai) is currently priced at $722.

  • Can I find deals for flights from Illinois to Chennai that include hotel bookings?

    Yes. In addition to deals on Illinois to Chennai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Chennai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Chennai.

  • Can I find deals for business class flights from Illinois to Chennai?

    Yes. Cheapflights offers flight deals from Illinois to Chennai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Chennai?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Chennai (average of $932). Flying from Illinois to Chennai in December is currently the most expensive (average of $1,531). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chennai?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Chennai

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Chennai flights
San Francisco to Chennai flights
Dallas/Fort Worth to Chennai flights
Newark to Chennai flights
Dulles Intl to Chennai flights
O'Hare Intl to Chennai flights
LaGuardia to Chennai flights
Reagan-National to Chennai flights
Baltimore to Chennai flights
Los Angeles to Chennai flights
Atlanta to Chennai flights
Boston to Chennai flights
Hobby to Chennai flights
Seattle to Chennai flights
George Bush Intcntl to Chennai flights
Philadelphia to Chennai flights
Detroit to Chennai flights
Burbank to Chennai flights
Santa Ana to Chennai flights
San Jose to Chennai flights
Austin to Chennai flights
Oakland to Chennai flights
Raleigh to Chennai flights
Dulles Intl to Coimbatore flights
Ontario to Chennai flights
Newark to Coimbatore flights
San Francisco to Coimbatore flights
John F Kennedy Intl to Coimbatore flights
Baltimore to Coimbatore flights
Sky Harbor Intl to Chennai flights
Seattle to Tiruchirappalli flights
Charlotte to Chennai flights
Orlando to Chennai flights
Seattle to Coimbatore flights
Pittsburgh to Chennai flights
Miami to Chennai flights
Dallas/Fort Worth to Coimbatore flights
Minneapolis to Chennai flights
Tampa to Chennai flights
St. Louis to Chennai flights
Nashville to Chennai flights
San Diego to Chennai flights
San Antonio to Chennai flights
Columbus to Chennai flights
Buffalo to Chennai flights
Cincinnati to Chennai flights
Honolulu to Chennai flights
Denver to Chennai flights
Salt Lake City to Chennai flights
George Bush Intcntl to Coimbatore flights

Top 10 airlines flying from Illinois to Chennai

Discover the top 10 airlines that operate flights from Illinois to Chennai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$695Average$900FlexibilityNo cancel feeOn-timeN/A
EmiratesCheapest$727Average$1,275FlexibilityNo cancel feeOn-time75%
Etihad AirwaysCheapest$767Average$1,104FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$801Average$1,245FlexibilityNo cancel feeOn-time68%
British AirwaysCheapest$804Average$1,306FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$832Average$1,284FlexibilityNo cancel feeOn-time76%
Oman AirCheapest$1,019Average$1,448FlexibilityNo cancel feeOn-time76%
IndiGoCheapest$1,053Average$1,249FlexibilityNo cancel feeOn-time80%
Ethiopian AirCheapest$1,069Average$1,659FlexibilityNo cancel feeOn-time72%
SWISSCheapest$1,088Average$1,217FlexibilityNo cancel feeOn-time79%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.