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Cheap flights from Illinois to Chennai from ₹ 44,507

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAA
16 12月 — 23 12月1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Illinois to Chennai

Enter your travel dates to find the best prices.

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 16 11月 2025.

週三 3/1214:35ORD - MAA
1 stop22h 30mCathay Pacific
週一 15/1202:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 15/11₹ 69,508
週一 1/1214:35ORD - MAA
1 stop22h 30mCathay Pacific
週三 10/1202:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 15/11₹ 69,597
週日 30/1114:35ORD - MAA
1 stop22h 30mCathay Pacific
週四 4/1202:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 15/11₹ 71,813
週日 16/1114:35ORD - MAA
1 stop22h 30mCathay Pacific
週四 20/1102:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 14/11₹ 71,902
週日 16/1114:35ORD - MAA
1 stop22h 30mCathay Pacific
週二 25/1102:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 15/11₹ 72,789
週日 30/1114:35ORD - MAA
1 stop22h 30mCathay Pacific
週日 7/1202:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 15/11₹ 73,941
週日 30/1114:35ORD - MAA
1 stop22h 30mCathay Pacific
週三 10/1202:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 15/11₹ 74,030
週一 17/1114:35ORD - MAA
1 stop22h 30mCathay Pacific
週一 24/1102:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 15/11₹ 74,739
週三 3/1221:45ORD - MAA
1 stop20h 20mBritish Airways
週三 10/1207:35MAA - ORD
1 stop22h 40mBritish Airways
Deal found 15/11₹ 75,005
週三 3/1214:35ORD - MAA
1 stop22h 30mCathay Pacific
週二 16/1202:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 15/11₹ 76,158
週三 3/1214:35ORD - MAA
1 stop22h 30mCathay Pacific
週一 22/1202:00MAA - ORD
1 stop22h 25mCathay Pacific
Deal found 15/11₹ 76,246
週二 18/1114:52STL - MAA
2 stops24h 08mQatar Airways
週一 22/1204:05MAA - STL
2 stops30h 00mQatar Airways
Deal found 15/11₹ 116,675

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 16 11月 2025.

Round-trip from

₹ 68,799

One-way from

₹ 44,507

Popular in

December

Cheapest in

April

Average price

₹ 96,017
British Airways
  • British Airways
  • 12/1-9/2
  • 2 total stops
  • 47h 35m total
  • Illinois to Chennai
Search Deals
5/1
  • 5/1
  • 2 total stops
  • 35h 00m total
  • Illinois to Chennai
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (₹ 1,079,371 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 290,494 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise 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 454,620 searches. Data last updated 16 11月 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

週日 12/4

13:10-22:40

1 stop23h 00m

Chennai

週三 15/4

20:40-11:10

2 stops25h 00m

₹ 70,750

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

週四 29/1

21:05-08:45

3 stops48h 10m

Chennai

週六 14/2

18:00-12:10

3 stops29h 40m

₹ 74,917

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

週二 12/5

14:20-08:45

2 stops31h 55m

Chennai

週六 13/6

15:45-12:20

2 stops31h 05m

₹ 78,552

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

週四 14/5

14:20-08:45

2 stops31h 55m

Chennai

週日 14/6

15:25-12:20

2 stops31h 25m

₹ 78,552

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

週二 30/12

17:10-05:35

1 stop24h 55m

Chennai

週六 24/1

07:35-18:45

1 stop22h 40m

₹ 87,417

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

週三 13/5

21:15-03:30

1 stop19h 45m

Chennai

週五 12/6

05:35-18:15

1 stop23h 10m

₹ 87,772

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

週一 5/1

18:35-08:45

3 stops50h 40m

Chennai

週一 19/1

18:00-16:20

2 stops33h 50m

₹ 90,609

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

週六 31/1

13:40-02:30

2 stops25h 20m

Chennai

週四 19/2

03:25-22:57

2 stops31h 02m

₹ 94,687

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

週日 12/4

11:14-03:00

2 stops29h 16m

Chennai

週三 15/4

04:20-21:48

2 stops27h 58m

₹ 96,461

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

週日 15/2

21:05-08:45

3 stops48h 10m

Chennai

週六 7/3

18:00-12:10

3 stops29h 40m

₹ 96,815

Flights are sorted by cheapest return flights first.

Deals found on 14/11

Showing 1-10 of 47 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 return 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 ₹ 60,377). Flying from Illinois to Chennai in June is currently the most expensive (average of ₹ 80,679). 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 16 11月 2025.

One of the essential ways to save on airfare from Illinois to Chennai is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at midday could potentially save you up to 35% on airfare.

How much does it cost for a return flight 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?

    Located just 16.5 km from the city centre, Chennai (MAA) is the airport most travelers will use when flying to Chennai from Illinois.

  • How long is the flight from Illinois to Chennai?

    Airlines like Air India, SWISS, and British Airways fly from Illinois to Chennai in about 23h. The time it takes to get you to your destination can typically vary by up to 25h 10m. Illinois and Chennai are separated by a distance of 13773 km. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Qatar Airways, which is currently one of the cheapest options available, starting at ₹ 48,940. Etihad Airways flights start at ₹ 52,043 while deals on Lufthansa start at ₹ 70,129 one-way.

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

    The most popular flight routes from Illinois to Chennai are Chicago O'Hare Intl - Chennai, Lambert-St Louis - Chennai and Greater Peoria - Chennai.

  • 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 holiday 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 ₹ 60,377). Flying from Illinois to Chennai in June is currently the most expensive (average of ₹ 80,679). 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

Travelling 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 5 airlines flying from Illinois to Chennai

Discover the top 5 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 454,620 searches. Data last updated 16 11月 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest₹ 39,825Average₹ 99,987FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air IndiaCheapest₹ 66,004Average₹ 102,269FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest₹ 68,068Average₹ 95,727FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
British AirwaysCheapest₹ 76,015Average₹ 138,127FlexibilityNo cancel feeOn-time70%
Search British Airways flights
EmiratesCheapest₹ 86,847Average₹ 134,031FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Illinois to Chennai?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois to Chennai. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Chennai?

Cheapflights helps you find that perfect flight to Chennai from Illinois by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Illinois to Chennai with no change fees?

Need flexible booking options for your flight to Chennai from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Chennai become cheaper?

Of course! You can now track prices for flights from Illinois to Chennai and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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