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$501+ 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:10 pmORD - MAA
1 stop38h 00mEtihad Airways
Sun 11/233:45 pmMAA - ORD
1 stop27h 20mEtihad Airways
Deal found 10/28$757
This oojo deal was found by Cheapflights users on 10/27. 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 11/52:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Tue 11/182:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 10/27$759
This Indian Eagle deal was found by Cheapflights users on 10/28. 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 12/152:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 10/28$760
This Cathay Pacific deal was found by Cheapflights users on 10/29. 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 12/22:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Thu 12/112:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 10/29$761
This oojo deal was found by Cheapflights users on 10/29. 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.
Tue 12/302:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Wed 1/282:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 10/29$762
This FlightHub deal was found by Cheapflights users on 10/29. 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 11/42:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Wed 11/192:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 10/29$771
This Gurufare deal was found by Cheapflights users on 10/30. 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 11/42:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Mon 12/222:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 10/30$784
This Indian Eagle deal was found by Cheapflights users on 10/27. 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 11/112:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Wed 11/262:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 10/27$785
This Cathay Pacific deal was found by Cheapflights users on 10/29. 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.
Mon 12/12:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Wed 12/102:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 10/29$786
This FlightHub deal was found by Cheapflights users on 10/29. 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.
Sat 11/82:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Thu 11/202:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 10/29$796
This KAYAK deal was found by Cheapflights users on 10/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:15 pmORD - MAA
2 stops28h 50mBritish Airways
Thu 1/297:35 amMAA - ORD
1 stop22h 40mBritish Airways
Deal found 10/29$807
This FlightHub deal was found by Cheapflights users on 10/28. 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 11/96:00 amSTL - MAA
2 stops33h 00mQatar Airways
Wed 12/244:05 amMAA - STL
2 stops30h 00mQatar Airways
Deal found 10/28$1,044

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 October 30, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$752
(KAYAK)

One-way from

$501
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$906

Good round-trip deal

$1,180 or less
Provider with most accurate pricing for Chicago (CHI)-Chennai flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Chennai flights.
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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 ($159 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Illinois to Chennai.
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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 October 30, 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 1/26

4:10 pm-8:45 am

2 stops29h 05m

Chennai

Fri 2/13

1:50 am-3:20 pm

1 stop25h 00m

$824

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Fri 1/23

9:05 pm-8:45 am

3 stops48h 10m

Chennai

Tue 2/24

6:00 pm-4:20 pm

2 stops33h 50m

$906

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Tue 12/30

8:40 pm-5:35 am

1 stop21h 25m

Chennai

Sat 1/24

7:35 am-1:50 pm

1 stop41h 45m

$940

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 1/26

6:35 pm-8:45 am

3 stops50h 40m

Chennai

Sun 2/15

6:00 pm-12:10 pm

3 stops29h 40m

$952

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Mon 11/17

10:44 am-2:30 am

2 stops28h 16m

Chennai

Tue 11/25

4:05 am-10:34 pm

2 stops29h 59m

$1,044

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 11/12

4:10 pm-8:45 am

2 stops29h 05m

Chennai

Thu 11/27

1:50 am-8:05 pm

1 stop29h 45m

$1,044

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Thu 11/27

7:00 am-2:20 am

2 stops31h 50m

Chennai

Wed 12/3

4:05 am-7:05 pm

2 stops26h 30m

$1,054

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Fri 11/14

6:50 pm-8:45 am

2 stops50h 25m

Chennai

Sun 11/23

8:00 pm-12:10 pm

3 stops27h 40m

$1,101

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 1/13

6:00 am-7:55 pm

2 stops26h 25m

Chennai

Tue 1/20

10:00 am-2:50 pm

2 stops40h 20m

$1,112

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sat 1/24

9:05 pm-8:45 am

3 stops48h 10m

Chennai

Fri 2/13

6:00 pm-1:45 pm

3 stops31h 15m

$1,121

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 40 results
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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 December is currently the most expensive (average of $915). 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 October 30, 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 21h 25m. 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 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 $671.

  • 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 December is currently the most expensive (average of $915). 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

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Alternative routes for Illinois to Chennai

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$688Average$782FlexibilityNo cancel feeOn-time72%
Air IndiaCheapest$696Average$910FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$755Average$1,070FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$790Average$1,222FlexibilityNo cancel feeOn-time68%
British AirwaysCheapest$804Average$1,205FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$834Average$1,308FlexibilityNo cancel feeOn-time76%
EmiratesCheapest$896Average$1,341FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$1,020Average$1,216FlexibilityNo cancel feeOn-time80%
Ethiopian AirCheapest$1,069Average$1,659FlexibilityNo cancel feeOn-time72%
SWISSCheapest$1,088Average$1,217FlexibilityNo cancel feeOn-time79%

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