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$490+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAA
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
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 November 18, 2025.

This Gurufare deal was found by Cheapflights users on 11/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Mon 2/22:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/17$783
This Indian Eagle deal was found by Cheapflights users on 11/16. 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 12/32:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Sun 2/152:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/16$784
This Indian Eagle deal was found by Cheapflights users on 11/17. 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 Indian Eagle 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 11/17$785
This Gurufare deal was found by Cheapflights users on 11/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/302:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Fri 12/52:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/16$809
This Indian Eagle deal was found by Cheapflights users on 11/16. 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.
Sun 11/302:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Thu 12/42:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/16$810
This FlightHub deal was found by Cheapflights users on 11/17. 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 FlightHub 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
Sat 1/312:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/17$820
This FlightHub deal was found by Cheapflights users on 11/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/302:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Mon 12/82:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/16$821
This Gurufare deal was found by Cheapflights users on 11/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Thu 2/192:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/16$833
This Gurufare deal was found by Cheapflights users on 11/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Thu 12/112:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/17$834
This Indian Eagle deal was found by Cheapflights users on 11/16. 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.
Sun 11/302:35 pmORD - MAA
1 stop22h 30mCathay Pacific
Wed 12/102:00 amMAA - ORD
1 stop22h 25mCathay Pacific
Deal found 11/16$835
This KAYAK deal was found by Cheapflights users on 11/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/29:45 pmORD - MAA
1 stop20h 20mBritish Airways
Thu 2/57:35 amMAA - ORD
1 stop41h 45mBritish Airways
Deal found 11/17$836
This KAYAK deal was found by Cheapflights users on 11/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/29:45 pmORD - MAA
1 stop20h 20mBritish Airways
Thu 12/117:35 amMAA - ORD
1 stop22h 40mBritish Airways
Deal found 11/16$837

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 18, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$776
(British Airways)

One-way from

$490
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$1,083

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.
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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. 11% potential increase in price ($137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 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 18, 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

Wed 1/14

5:10 pm-5:35 am

1 stop24h 55m

Chennai

Mon 2/2

7:35 am-1:50 pm

1 stop41h 45m

$776

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Thu 3/12

7:50 pm-8:45 am

2 stops50h 25m

Chennai

Tue 3/24

6:00 pm-5:20 pm

2 stops33h 50m

$798

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 4/12

1:10 pm-10:40 pm

1 stop23h 00m

Chennai

Wed 4/15

8:40 pm-11:10 am

2 stops25h 00m

$798

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Thu 1/22

5:10 pm-5:35 am

1 stop24h 55m

Chennai

Sat 1/31

7:35 am-6:45 pm

1 stop22h 40m

$811

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 3/1

6:50 pm-8:45 am

2 stops50h 25m

Chennai

Tue 3/24

6:00 pm-1:10 pm

3 stops29h 40m

$826

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Fri 4/24

5:55 pm-8:45 am

2 stops28h 20m

Chennai

Tue 4/28

6:15 am-12:55 pm

2 stops41h 10m

$829

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 5/13

2:20 pm-8:45 am

2 stops31h 55m

Chennai

Sun 6/14

3:25 pm-12:20 pm

2 stops31h 25m

$886

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Fri 4/24

9:15 pm-3:30 am

1 stop19h 45m

Chennai

Tue 4/28

5:35 am-6:15 pm

1 stop23h 10m

$901

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 4/6

9:30 pm-8:45 am

3 stops48h 45m

Chennai

Tue 4/21

3:45 pm-3:55 pm

2 stops34h 40m

$911

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 5/13

2:20 pm-8:45 am

2 stops31h 55m

Chennai

Thu 6/11

1:55 am-7:55 pm

1 stop28h 30m

$912

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 48 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 $681). 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 18, 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.

How much does it cost to fly round-trip from Illinois to Chennai?

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. 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 cheapest airlines to fly from Illinois to Chennai one-way?

    To fly one-way, consider booking your trip with Etihad Airways, which is currently one of the cheapest options available, starting at $524. Air India flights start at $547 while deals on Qatar Airways start at $552 one-way.

  • 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 $670.

  • 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 $681). 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

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Alternative routes for Illinois to Chennai

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 18, 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%

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