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$423+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$813
(Indian Eagle)

One-way from

$423
(Indian Eagle)

Popular in

December

Cheapest in

September

Average price

$1,390

Good round-trip deal

$1,180 or less
From Illinois to Chennai
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One-way flight from Illinois to Chennai
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Highest demand for flights based on searches. 13% potential increase in price ($170 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).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Illinois to Chennai.
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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 June 12, 2025.

This Indian Eagle deal was found by Cheapflights users on 6/9. 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 7/2212:15 pmORD - MAA
1 stop23h 45mAir India
Wed 8/275:30 pmMAA - ORD
2 stops27h 15mAir India
Deal found 6/9$813
This Indian Eagle deal was found by Cheapflights users on 6/11. 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 8/263:10 pmORD - MAA
1 stop22h 30mLufthansa
Tue 9/167:50 pmMAA - ORD
2 stops28h 45mLufthansa
Deal found 6/11$824
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1411:35 amORD - MAA
2 stops31h 10mAmerican Airlines
Mon 9/291:15 pmMAA - ORD
2 stops41h 50mAmerican Airlines
Deal found 6/11$830
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:45 amORD - MAA
2 stops24h 50mMultiple Airlines
Sun 11/231:50 amMAA - ORD
2 stops26h 32mMultiple Airlines
Deal found 6/11$834
This Air Canada deal was found by Cheapflights users on 6/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/32:00 pmORD - MAA
2 stops23h 40mAir Canada
Tue 9/231:55 amMAA - ORD
2 stops43h 58mAir Canada
Deal found 6/10$854
This oojo deal was found by Cheapflights users on 6/10. 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 9/241:55 pmORD - MAA
1 stop19h 45mEtihad Airways
Wed 10/84:25 amMAA - ORD
1 stop38h 50mEtihad Airways
Deal found 6/10$871
This Indian Eagle deal was found by Cheapflights users on 6/11. 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 10/18:35 pmORD - MAA
1 stop19h 25mEmirates
Mon 11/103:45 amMAA - ORD
1 stop22h 40mEmirates
Deal found 6/11$872
This Indian Eagle deal was found by Cheapflights users on 6/10. 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 11/26:55 pmORD - MAA
1 stop19h 30mQatar Airways
Sun 11/233:45 amMAA - ORD
1 stop22h 15mQatar Airways
Deal found 6/10$903
This SWISS deal was found by Cheapflights users on 6/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/19:25 pmORD - MAA
3 stops45h 25mSWISS
Tue 9/308:40 pmMAA - ORD
3 stops25h 55mSWISS
Deal found 6/10$937
This oojo deal was found by Cheapflights users on 6/12. 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.
Thu 9/186:02 amSTL - MAA
2 stops34h 18mQatar Airways
Mon 10/139:50 pmMAA - STL
2 stops28h 48mQatar Airways
Deal found 6/12$1,178
This Gurufare deal was found by Cheapflights users on 6/12. 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.
Sat 7/125:30 pmSTL - MAA
3 stops52h 55mLufthansa
Sat 7/197:50 pmMAA - STL
3 stops30h 27mLufthansa
Deal found 6/12$1,221
This Air Canada deal was found by Cheapflights users on 6/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/161:30 pmSTL - MAA
2 stops24h 10mAir Canada
Mon 10/131:55 amMAA - STL
2 stops28h 32mAir Canada
Deal found 6/11$1,241

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 June 12, 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

Tue 7/22

12:15 pm-10:30 pm

1 stop23h 45m

Chennai

Wed 8/27

5:30 pm-10:15 am

2 stops27h 15m

$813

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Tue 8/26

3:10 pm-12:10 am

1 stop22h 30m

Chennai

Tue 9/16

7:50 pm-2:05 pm

2 stops28h 45m

$824

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 7/14

11:35 am-5:15 am

2 stops31h 10m

Chennai

Mon 9/29

1:15 pm-8:35 pm

2 stops41h 50m

$830

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 11/12

11:45 am-12:05 am

2 stops24h 50m

Chennai

Sun 11/23

1:50 am-4:52 pm

2 stops26h 32m

$834

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 9/3

2:00 pm-12:10 am

2 stops23h 40m

Chennai

Tue 9/23

1:55 am-11:23 am

2 stops43h 58m

$854

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 9/24

1:55 pm-8:10 pm

1 stop19h 45m

Chennai

Wed 10/8

4:25 am-8:45 am

1 stop38h 50m

$871

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Wed 10/1

8:35 pm-2:30 am

1 stop19h 25m

Chennai

Mon 11/10

3:45 am-2:55 pm

1 stop22h 40m

$872

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Sun 11/2

6:55 pm-1:55 am

1 stop19h 30m

Chennai

Mon 11/24

3:45 am-2:30 pm

1 stop22h 15m

$903

ChicagoChennai

ORD - MAA

ORDMAA

Chicago O'Hare Intl

Mon 9/1

9:25 pm-5:20 am

3 stops45h 25m

Chennai

Tue 9/30

8:40 pm-12:05 pm

3 stops25h 55m

$937

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sat 7/12

5:30 pm-8:55 am

3 stops52h 55m

Chennai

Sat 7/19

7:50 pm-3:47 pm

3 stops30h 27m

$1,221

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 28 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, September is the cheapest month in which you can book a flight from Illinois to Chennai (average of $943). Flying from Illinois to Chennai in June is currently the most expensive (average of $1,538). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Chennai as you normally would.

Rainfall in Chennai by month

Plan your trip to Chennai by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chennai ranges from 0.4 - 13.0 inches per month. November is typically the wettest month, when rainfall can reach 13.0 in. February is typically the driest time to visit Chennai when rainfall is around 0.4 in.

Temperature in Chennai by month

Plan your trip to Chennai by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chennai, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 91.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Chennai

Get insights into the airlines that provide service to Chennai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chennai. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Singapore Airlines, SWISS and Qatar Airways from Illinois to Chennai. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,302 reviews

Food

7.7

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,302 reviews
Singapore Airlines
8.1
Very good
1,302 reviews

Food

7.7

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
SWISS
7.5
Good
1,623 reviews
Singapore Airlines
8.1
Very good
1,302 reviews

Food

7.7

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qatar Airways
7.4
Good
3,584 reviews
Singapore Airlines
8.1
Very good
1,302 reviews

Food

7.7

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Etihad Airways
7.4
Good
1,211 reviews
Singapore Airlines
8.1
Very good
1,302 reviews

Food

7.7

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Turkish Airlines
7.3
Good
3,848 reviews
Singapore Airlines
8.1
Very good
1,302 reviews

Food

7.7

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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.

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

    To fly one-way, consider booking your trip with Air India, which is currently one of the cheapest options available, starting at $423. American Airlines flights start at $429 while deals on Etihad Airways start at $559 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 $449.

  • 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, September is the cheapest month in which you can book a flight from Illinois to Chennai (average of $943). Flying from Illinois to Chennai in June is currently the most expensive (average of $1,538). 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 Illinois?

Book flights to Illinois 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$646Average$753FlexibilityNo cancel feeOn-time72%
Air IndiaCheapest$698Average$921FlexibilityNo cancel feeOn-timeN/A
EmiratesCheapest$728Average$1,246FlexibilityNo cancel feeOn-time75%
Etihad AirwaysCheapest$765Average$1,059FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$808Average$1,173FlexibilityNo cancel feeOn-time68%
LufthansaCheapest$827Average$1,273FlexibilityNo cancel feeOn-time76%
IndiGoCheapest$1,031Average$1,275FlexibilityNo cancel feeOn-time80%
Air CanadaCheapest$1,032Average$1,355FlexibilityNo cancel feeOn-time67%
SWISSCheapest$1,058Average$1,196FlexibilityNo cancel feeOn-time79%
Ethiopian AirCheapest$1,069Average$1,548FlexibilityNo cancel feeOn-time72%

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