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Cheap flights from Illinois to Chennai from ₹ 31,875

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAA
17 Mar — 24 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 15 February 2026.

Mon 16/214:35
ORD
-
MAA
1 stop22h 30m
Multiple Airlines
Wed 4/315:25
MAA
-
ORD
1 stop27h 40m
Multiple Airlines
Deal found 11/2₹ 66,830
Mon 20/414:00
ORD
-
MAA
1 stop19h 40m
Etihad Airways
Mon 5/1010:15
MAA
-
ORD
1 stop32h 50m
Etihad Airways
Deal found 13/2₹ 66,920
Wed 19/816:00
ORD
-
MAA
1 stop45h 05m
Cathay Pacific
Thu 10/900:50
MAA
-
ORD
1 stop24h 00m
Cathay Pacific
Deal found 12/2₹ 67,011
Wed 2/916:00
ORD
-
MAA
1 stop45h 05m
Cathay Pacific
Fri 25/900:50
MAA
-
ORD
1 stop23h 35m
Cathay Pacific
Deal found 13/2₹ 67,101
Tue 31/314:00
ORD
-
MAA
1 stop19h 40m
Etihad Airways
Sun 19/415:45
MAA
-
ORD
1 stop27h 20m
Etihad Airways
Deal found 14/2₹ 67,554
Tue 17/314:10
ORD
-
MAA
1 stop19h 15m
Etihad Airways
Wed 1/416:35
MAA
-
ORD
1 stop26h 30m
Etihad Airways
Deal found 14/2₹ 67,645
Wed 1/414:00
ORD
-
MAA
1 stop19h 40m
Etihad Airways
Sat 16/516:35
MAA
-
ORD
1 stop26h 30m
Etihad Airways
Deal found 14/2₹ 67,735
Sun 22/213:10
ORD
-
MAA
1 stop31h 30m
Etihad Airways
Sun 8/315:25
MAA
-
ORD
1 stop27h 40m
Etihad Airways
Deal found 13/2₹ 67,826
Sun 22/213:10
ORD
-
MAA
1 stop31h 30m
Etihad Airways
Wed 4/315:25
MAA
-
ORD
1 stop27h 40m
Etihad Airways
Deal found 13/2₹ 67,916
Thu 5/313:10
ORD
-
MAA
1 stop19h 15m
Etihad Airways
Sun 15/315:25
MAA
-
ORD
1 stop27h 40m
Etihad Airways
Deal found 13/2₹ 68,007
Mon 23/213:10
ORD
-
MAA
1 stop19h 15m
Etihad Airways
Wed 11/310:00
MAA
-
ORD
1 stop33h 05m
Etihad Airways
Deal found 15/2₹ 68,097
Thu 16/414:00
ORD
-
MAA
1 stop19h 40m
Etihad Airways
Mon 27/416:35
MAA
-
ORD
1 stop26h 30m
Etihad Airways
Deal found 14/2₹ 68,188

Find flight deals from Illinois to Chennai

Keep the following information in mind while searching for Illinois to Chennai flight deals. Data was last updated 15 February 2026.

Round-trip from

₹ 66,920

One-way from

₹ 31,875

Popular in

December

Cheapest in

April

Average price

₹ 76,700
Etihad Airways
  • Etihad Airways
  • 20/4-5/10
  • 2 total stops
  • 52h 30m total
  • Illinois to Chennai
Search Deals
Etihad Airways
  • Etihad Airways
  • 8/3
  • 1 total stop
  • 25h 50m total
  • Illinois to Chennai
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (₹ 464,579 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (₹ 320,352 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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 15 February 2026.
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 10/5

19:05-04:55

2 stops23h 20m

Chennai

Sat 30/5

20:40-12:35

2 stops26h 25m

₹ 70,995

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 22/3

19:00-08:45

2 stops27h 15m

Chennai

Tue 7/4

18:00-12:35

2 stops29h 05m

₹ 71,448

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 30/3

20:15-04:55

3 stops46h 10m

Chennai

Thu 14/5

20:40-15:55

2 stops29h 45m

₹ 71,448

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 20/4

21:20-04:55

3 stops45h 05m

Chennai

Mon 5/10

18:00-15:55

2 stops32h 25m

₹ 72,806

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 1/3

21:15-08:45

3 stops48h 00m

Chennai

Wed 15/4

18:00-12:35

2 stops29h 05m

₹ 72,806

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 2/3

16:20-00:05

1 stop20h 15m

Chennai

Tue 17/3

18:00-17:20

2 stops33h 50m

₹ 73,350

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 1/3

21:15-08:45

3 stops48h 00m

Chennai

Mon 16/3

18:00-13:10

3 stops29h 40m

₹ 75,342

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Tue 28/4

21:30-04:55

3 stops44h 55m

Chennai

Tue 2/6

20:40-15:55

2 stops29h 45m

₹ 79,870

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sat 4/4

21:20-04:55

3 stops45h 05m

Chennai

Thu 23/4

20:40-15:55

2 stops29h 45m

₹ 82,133

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 19/4

15:40-04:55

3 stops26h 45m

Chennai

Sat 25/4

20:40-15:55

2 stops29h 45m

₹ 82,405

Flights are sorted by cheapest return flights first.

Deals found on 14/2

Showing 1-10 of 56 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, January is the cheapest month in which you can book a flight from Illinois to Chennai (average of ₹ 56,778). Flying from Illinois to Chennai in June is currently the most expensive (average of ₹ 82,496). 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.

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 SWISS and Qatar Airways fly from Illinois to Chennai in about 23h 20m. The time it takes to get you to your destination can typically vary by up to 6h 17m. Illinois and Chennai are separated by a distance of 13773 km. This flight may include one or multiple stops.

  • 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 Chicago Midway - 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, January is the cheapest month in which you can book a flight from Illinois to Chennai (average of ₹ 56,778). Flying from Illinois to Chennai in June is currently the most expensive (average of ₹ 82,496). 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

Browse thousands of different options on Cheapflights for your next trip

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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 15 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest₹ 67,416Average₹ 123,982FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest₹ 69,524Average₹ 110,762FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
LufthansaCheapest₹ 76,969Average₹ 112,584FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest₹ 77,641Average₹ 131,965FlexibilityNo cancel feeOn-time70%
Search British Airways flights
EmiratesCheapest₹ 89,357Average₹ 136,898FlexibilityNo 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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