HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chennai

$444+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAA
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
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.

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 November 4, 2025.

This FlightHub deal was found by Cheapflights users on 11/3. 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.
Sun 12/72:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Tue 12/232:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/3$746
This Gurufare deal was found by Cheapflights users on 11/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Wed 12/242:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/3$759
This Indian Eagle deal was found by Cheapflights users on 11/3. 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.
Sun 11/162:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Mon 12/82:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/3$760
This Cathay Pacific deal was found by Cheapflights users on 11/4. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Thu 11/202:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/4$761
This FlightHub deal was found by Cheapflights users on 11/3. 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.
Thu 12/42:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Sun 12/212:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/3$766
This Indian Eagle deal was found by Cheapflights users on 11/3. 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.
Mon 12/81:30 pmORD - MAA
1 stop27h 55mAir India
Thu 12/254:20 pmMAA - ORD
2 stops30h 40mAir India
Deal found 11/3$775
This Gurufare deal was found by Cheapflights users on 11/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Wed 1/212:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/3$783
This Gurufare deal was found by Cheapflights users on 11/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/172:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Tue 12/92:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/3$784
This Indian Eagle deal was found by Cheapflights users on 11/4. 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.
Thu 11/62:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Mon 11/172:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/4$785
This Cathay Pacific deal was found by Cheapflights users on 11/4. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Wed 11/192:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/4$786
This oojo deal was found by Cheapflights users on 11/3. 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 11/162:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Thu 12/112:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/3$787
This Gurufare deal was found by Cheapflights users on 11/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Sun 12/212:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/3$788

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 November 4, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$742
(Kiwi.com)

One-way from

$444
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,088

Good round-trip deal

$1,180 or less
Provider with most accurate pricing for Chicago (CHI)-Chennai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Chennai flights.
Search Deals
From Illinois to Chennai
Search Deals
One-way flight from Illinois to Chennai
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($151 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Chennai.
Search Deals

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 November 4, 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

Sun 2/15

1:10 pm-7:55 pm

1 stop19h 15m

Chennai

Fri 3/13

3:45 pm-8:35 am

1 stop27h 20m

$756

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 2/15

1:10 pm-2:30 am

1 stop25h 50m

Chennai

Sat 3/21

4:10 pm-8:35 am

1 stop26h 55m

$772

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 2/15

1:10 pm-7:55 pm

1 stop19h 15m

Chennai

Sun 3/22

3:45 pm-8:35 am

1 stop27h 20m

$772

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Fri 2/13

1:10 pm-7:55 pm

1 stop19h 15m

Chennai

Fri 3/20

3:45 pm-8:35 am

1 stop27h 20m

$772

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sat 2/14

1:10 pm-7:55 pm

1 stop19h 15m

Chennai

Fri 3/13

3:45 pm-8:35 am

1 stop27h 20m

$776

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 2/15

2:35 pm-12:35 am

1 stop22h 30m

Chennai

Thu 3/12

2:00 am-1:55 pm

1 stop22h 25m

$795

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 2/15

4:10 pm-8:45 am

2 stops29h 05m

Chennai

Sun 3/15

6:00 pm-5:20 pm

2 stops33h 50m

$798

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 2/15

4:10 pm-8:45 am

2 stops29h 05m

Chennai

Thu 3/19

1:50 am-4:20 pm

1 stop25h 00m

$823

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 4/26

3:50 pm-8:55 am

2 stops30h 35m

Chennai

Sat 5/2

1:55 am-12:55 pm

1 stop21h 30m

$824

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 2/15

4:10 pm-8:45 am

2 stops29h 05m

Chennai

Fri 3/20

1:50 am-2:10 pm

1 stop22h 50m

$824

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 52 results
1
2
3
...
6

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, August is the cheapest month in which you can book a flight from Illinois to Chennai (average of $682). Flying from Illinois to Chennai in June is currently the most expensive (average of $910). 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 November 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Illinois to Chennai in the morning. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Illinois to Chennai?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Chennai. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Chennai flight should consider departing on Thursday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 19h 15m. The distance between Illinois and Chennai is about 8558 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    While some choose either Lambert-St Louis - Chennai or Chicago Midway - 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 $664.

  • 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, August is the cheapest month in which you can book a flight from Illinois to Chennai (average of $682). Flying from Illinois to Chennai in June is currently the most expensive (average of $910). 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.
San Francisco to Chennai flights
John F Kennedy Intl to Chennai flights
Newark to Chennai flights
Dallas/Fort Worth to Chennai flights
Dulles Intl to Chennai flights
Reagan-National to Chennai flights
Baltimore to Chennai flights
O'Hare Intl to Chennai flights
LaGuardia to Chennai flights
Seattle to Chennai flights
Raleigh to Chennai flights
Los Angeles to Chennai flights
Atlanta to Chennai flights
Boston to Chennai flights
Hobby to Chennai flights
George Bush Intcntl to Chennai flights
Philadelphia to Chennai flights
Austin to Chennai flights
Detroit to Chennai flights
Sky Harbor Intl to Chennai flights
Burbank to Chennai flights
Charlotte to Chennai flights
Santa Ana to Chennai flights
San Francisco to Coimbatore flights
Newark to Coimbatore flights
Ontario to Chennai flights
John F Kennedy Intl to Coimbatore flights
Tampa to Chennai flights
Orlando to Chennai flights
Minneapolis to Chennai flights
Raleigh to Coimbatore flights
Nashville to Chennai flights
St. Louis to Chennai flights
San Jose to Chennai flights
Cincinnati to Chennai flights
Portland to Chennai flights
O'Hare Intl to Coimbatore flights
Oakland to Chennai flights
Columbus to Chennai flights
San Diego to Chennai flights
Kansas City to Chennai flights
Charlotte to Coimbatore flights
Dulles Intl to Coimbatore flights
Indianapolis to Chennai flights
Miami to Chennai flights
Denver to Chennai flights
Pittsburgh to Chennai flights
San Francisco to Tiruchirappalli flights
Dulles Intl to Madurai 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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$684Average$786FlexibilityNo cancel feeOn-time72%
Air IndiaCheapest$696Average$906FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$754Average$1,057FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$763Average$1,184FlexibilityNo cancel feeOn-time70%
Qatar AirwaysCheapest$791Average$1,215FlexibilityNo cancel feeOn-time68%
LufthansaCheapest$835Average$1,309FlexibilityNo cancel feeOn-time76%
EmiratesCheapest$895Average$1,343FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$1,020Average$1,199FlexibilityNo 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.