What is the cheapest airline that flies from Tamil Nadu to Illinois?

Oman Air, KLM, and Qatar Airways are the most popular carriers operating from Tamil Nadu to Illinois

How long is the flight from Tamil Nadu to Illinois?

The flight from Tamil Nadu to Illinois depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Chennai (a popular airport in Tamil Nadu) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 21h 10m on average. If you fly from Coimbatore (another popular airport in Tamil Nadu) to Chicago O'Hare Intl Airport, then the average flight time is 61h 10m.

When did momondo last update prices for flights from Tamil Nadu to Illinois?

Prices for flights from Tamil Nadu to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Tamil Nadu to Illinois?

The number of operators available for flights from Tamil Nadu to Illinois is 2 as of September 2026.

How old do you have to be to fly from Tamil Nadu to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Tamil Nadu to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

₹ 56,192 Cheap Flights from Tamil Nadu to Illinois in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Tamil Nadu to Illinois

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

21:55 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

21h 10m1 stop Abu Dhabi Zayed Intl

13:10 - 08:05ORD Chicago O'Hare Intl-MAA Chennai

31h 25m1 stop Abu Dhabi Zayed Intl

₹ 95,027Etihad Airways

Fri, 23 Oct - Mon, 11 Jan

21:55 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

21h 10m1 stop Abu Dhabi Zayed Intl

13:10 - 08:05ORD Chicago O'Hare Intl-MAA Chennai

31h 25m1 stop Abu Dhabi Zayed Intl

₹ 95,123Etihad Airways

Fri, 23 Oct - Mon, 11 Jan

04:20 - 15:05MAA Chennai-ORD Chicago O'Hare Intl

21h 15m1 stop Doha Hamad Intl

16:26 - 02:50ORD Chicago O'Hare Intl-MAA Chennai

23h 54m2 stops New York John F Kennedy Intl Doha Hamad Intl

₹ 95,123Multiple Airlines

Sat, 17 Oct - Wed, 21 Oct

08:15 - 16:10MAA Chennai-ORD Chicago O'Hare Intl

42h 25m2 stops Muscat Seeb Amman Queen Alia Intl

18:50 - 14:20ORD Chicago O'Hare Intl-MAA Chennai

32h 00m2 stops Amman Queen Alia Intl Muscat Seeb

₹ 95,506Oman Air

Fri, 23 Oct - Mon, 11 Jan

08:15 - 16:10MAA Chennai-ORD Chicago O'Hare Intl

42h 25m2 stops Muscat Seeb Amman Queen Alia Intl

18:50 - 14:20ORD Chicago O'Hare Intl-MAA Chennai

32h 00m2 stops Amman Queen Alia Intl Muscat Seeb

₹ 95,602Oman Air

Fri, 23 Oct - Mon, 11 Jan

09:55 - 07:55MAA Chennai-ORD Chicago O'Hare Intl

33h 30m1 stop Abu Dhabi Zayed Intl

13:10 - 02:35ORD Chicago O'Hare Intl-MAA Chennai

25h 55m1 stop Abu Dhabi Zayed Intl

₹ 95,602Etihad Airways

Tue, 24 Nov - Fri, 8 Jan

03:55 - 07:55MAA Chennai-ORD Chicago O'Hare Intl

39h 30m1 stop Abu Dhabi Zayed Intl

13:10 - 02:35ORD Chicago O'Hare Intl-MAA Chennai

25h 55m1 stop Abu Dhabi Zayed Intl

₹ 95,602Etihad Airways

Sun, 22 Nov - Fri, 8 Jan

21:45 - 14:55MAA Chennai-ORD Chicago O'Hare Intl

28h 40m1 stop Dubai Intl

19:45 - 02:15ORD Chicago O'Hare Intl-MAA Chennai

19h 00m1 stop Dubai Intl

₹ 97,616Emirates

Thu, 26 Nov - Tue, 5 Jan

09:50 - 16:00MAA Chennai-ORD Chicago O'Hare Intl

40h 40m1 stop Dubai Intl

19:45 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

25h 00m1 stop Dubai Intl

₹ 97,808Emirates

Mon, 5 Oct - Tue, 10 Nov

04:05 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

22h 20m1 stop Dubai Intl

19:45 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

25h 00m1 stop Dubai Intl

₹ 97,904Emirates

Tue, 29 Sep - Tue, 10 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

05:35 - 09:24MAA Chennai-STL Lambert-St Louis

38h 19m2 stops London Heathrow Dallas/Fort Worth

17:18 - 03:30STL Lambert-St Louis-MAA Chennai

47h 42m2 stops Chicago O'Hare Intl London Heathrow

₹ 101,260British Airways

Thu, 24 Sep - Mon, 28 Sep

10:15 - 15:55MAA Chennai-ORD Chicago O'Hare Intl

40h 10m1 stop Abu Dhabi Zayed Intl

14:00 - 03:10ORD Chicago O'Hare Intl-MAA Chennai

26h 40m1 stop Abu Dhabi Zayed Intl

₹ 101,547Etihad Airways

Sat, 19 Sep - Tue, 22 Sep

04:15 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

38h 50m1 stop Abu Dhabi Zayed Intl

14:00 - 03:10ORD Chicago O'Hare Intl-MAA Chennai

26h 40m1 stop Abu Dhabi Zayed Intl

₹ 101,739Etihad Airways

Sat, 19 Sep - Tue, 22 Sep

10:15 - 08:35MAA Chennai-ORD Chicago O'Hare Intl

32h 50m1 stop Abu Dhabi Zayed Intl

14:00 - 20:10ORD Chicago O'Hare Intl-MAA Chennai

19h 40m1 stop Abu Dhabi Zayed Intl

₹ 101,835Etihad Airways

Sat, 19 Sep - Tue, 22 Sep

05:35 - 17:15MAA Chennai-ORD Chicago O'Hare Intl

22h 10m1 stop London Heathrow

16:29 - 05:35ORD Chicago O'Hare Intl-MAA Chennai

49h 36m2 stops New York John F Kennedy Intl London Heathrow

₹ 102,315British Airways

Thu, 24 Sep - Fri, 5 Feb

05:35 - 23:59MAA Chennai-ORD Chicago O'Hare Intl

28h 54m2 stops London Heathrow Charlotte Douglas

17:13 - 05:35ORD Chicago O'Hare Intl-MAA Chennai

24h 52m2 stops Cincinnati Cinci./N. Kentucky London Heathrow

₹ 104,904British Airways

Thu, 24 Sep - Fri, 5 Feb

04:05 - 23:59MAA Chennai-ORD Chicago O'Hare Intl

30h 24m2 stops Doha Hamad Intl Seattle/Tacoma Intl

18:50 - 02:15ORD Chicago O'Hare Intl-MAA Chennai

19h 55m1 stop Doha Hamad Intl

₹ 106,246Multiple Airlines

Thu, 24 Sep - Fri, 5 Feb

22:05 - 21:21MAA Chennai-STL Lambert-St Louis

33h 46m2 stops Dubai Intl Chicago O'Hare Intl

15:11 - 02:30STL Lambert-St Louis-MAA Chennai

24h 49m2 stops Chicago O'Hare Intl Dubai Intl

₹ 135,397Emirates

Thu, 24 Sep - Mon, 28 Sep

04:05 - 16:34MAA Chennai-ORD Chicago O'Hare Intl

46h 59m3 stops Dubai Intl Athens Eleftherios V. Newark

17:30 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

27h 15m3 stops Newark Athens Eleftherios V. Dubai Intl

₹ 544,176Emirates

Thu, 24 Sep - Fri, 5 Feb

04:05 - 16:34MAA Chennai-ORD Chicago O'Hare Intl

46h 59m3 stops Dubai Intl Athens Eleftherios V. Newark

17:30 - 08:15ORD Chicago O'Hare Intl-MAA Chennai

27h 15m3 stops Newark Athens Eleftherios V. Dubai Intl

₹ 550,025Emirates

Thu, 24 Sep - Fri, 5 Feb

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Etihad Airways flights from Tamil Nadu to Illinois

Our best Etihad Airways deals on Tamil Nadu to Illinois flight tickets

Etihad Airways

23 Oct

MAA21:55Chennai

21h 10m

1 stop

ORD08:35Chicago O'Hare Intl

11 Jan

ORD13:10Chicago O'Hare Intl

31h 25m

1 stop

MAA08:05Chennai

₹ 95,027

Etihad Airways

24 Nov

MAA21:50Chennai

21h 35m

1 stop

ORD07:55Chicago O'Hare Intl

3 Jan

ORD13:10Chicago O'Hare Intl

19h 10m

1 stop

MAA19:50Chennai

₹ 95,602

Etihad Airways

30 Sept

MAA21:55Chennai

21h 10m

1 stop

ORD08:35Chicago O'Hare Intl

3 Oct

ORD20:25Chicago O'Hare Intl

19h 55m

1 stop

MAA02:50Chennai

₹ 95,794

Emirates flights from Tamil Nadu to Illinois

Our best Emirates deals on Tamil Nadu to Illinois flight tickets

Emirates

20 Feb

MAA03:50Chennai

22h 35m

1 stop

ORD14:55Chicago O'Hare Intl

7 Apr

ORD20:35Chicago O'Hare Intl

25h 00m

1 stop

MAA08:05Chennai

₹ 97,904

Emirates

8 Oct

MAA04:05Chennai

22h 25m

1 stop

ORD16:00Chicago O'Hare Intl

29 Oct

ORD20:45Chicago O'Hare Intl

19h 00m

1 stop

MAA02:15Chennai

₹ 98,000

Emirates

28 Sept

MAA22:05Chennai

28h 20m

1 stop

ORD15:55Chicago O'Hare Intl

10 Nov

ORD19:45Chicago O'Hare Intl

25h 00m

1 stop

MAA08:15Chennai

₹ 99,054

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Fri 23/10

21:55-08:35

1 stop21h 10m

Chicago O'Hare Intl

Mon 11/1

13:10-08:05

1 stop31h 25m

₹ 95,027

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Fri 23/10

21:55-08:35

1 stop21h 10m

Chicago O'Hare Intl

Mon 11/1

13:10-08:05

1 stop31h 25m

₹ 95,123

Fastest return journey

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sat 17/10

04:20-15:05

1 stop21h 15m

Chicago O'Hare Intl

Wed 21/10

16:26-02:50

2 stops23h 54m

₹ 95,123

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Fri 23/10

08:15-16:10

2 stops42h 25m

Chicago O'Hare Intl

Mon 11/1

18:50-14:20

2 stops32h 00m

₹ 95,506

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Fri 23/10

08:15-16:10

2 stops42h 25m

Chicago O'Hare Intl

Mon 11/1

18:50-14:20

2 stops32h 00m

₹ 95,602

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Tue 24/11

09:55-07:55

1 stop33h 30m

Chicago O'Hare Intl

Fri 8/1

13:10-02:35

1 stop25h 55m

₹ 95,602

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Sun 22/11

03:55-07:55

1 stop39h 30m

Chicago O'Hare Intl

Fri 8/1

13:10-02:35

1 stop25h 55m

₹ 95,602

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Thu 26/11

21:45-14:55

1 stop28h 40m

Chicago O'Hare Intl

Tue 5/1

19:45-02:15

1 stop19h 00m

₹ 97,616

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Mon 5/10

09:50-16:00

1 stop40h 40m

Chicago O'Hare Intl

Tue 10/11

19:45-08:15

1 stop25h 00m

₹ 97,808

ChennaiChicago

MAA Chennai - ORD Chicago O'Hare Intl

MAAORD

Chennai

Tue 29/9

04:05-15:55

1 stop22h 20m

Chicago O'Hare Intl

Tue 10/11

19:45-08:15

1 stop25h 00m

₹ 97,904

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Tamil Nadu to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

In general, April is the cheapest month to fly from Tamil Nadu to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 88,411. If you aren’t able to travel during the month of April, then book flights to Illinois from Tamil Nadu during March instead. Flights to Illinois in March, while not as cheap as those in April, still average around ₹ 89,657.

How far in advance should I book a flight from Tamil Nadu to Illinois?

You are more likely to see cheaper flights to Illinois from Tamil Nadu when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around ₹ 96,521 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Tamil Nadu for as low as ₹ 84,096 on momondo.

Cheap Tamil Nadu to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Tamil Nadu to Illinois

Best price found	₹ 56,192
Fastest flight time	21h 10m
Direct flights	None

The best one-way flight to Illinois from Tamil Nadu in the past 72 hours is ₹ 56,192. The best return flight deal from Tamil Nadu to Illinois found on momondo in the last 72 hours is ₹ 95,027.

The fastest flight from Tamil Nadu to Illinois takes 21h 10m

There are no direct flights from Tamil Nadu to Illinois. There are no popular flight routes from Tamil Nadu to Illinois.

Search flight deals

Frequently asked questions about flying from Tamil Nadu to Illinois

When did momondo last update prices for flights from Tamil Nadu to Illinois?
Prices for flights from Tamil Nadu to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Tamil Nadu to Illinois?
The number of operators available for flights from Tamil Nadu to Illinois is 2 as of September 2026.
How old do you have to be to fly from Tamil Nadu to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Tamil Nadu to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Tamil Nadu to Illinois

Compare and see reviews for airlines that fly from Tamil Nadu to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Etihad Airways	PriceFrom ₹ 74,262	Free Cancellation	Rating 7.3 1,535 reviews		Search Etihad Airways flights
Emirates	PriceFrom ₹ 93,272	Free Cancellation	Rating 8.1 3,662 reviews		Search Emirates flights

Why use momondo?

Why should I use momondo to find a flight deal from Tamil Nadu to Illinois?

It is quick and easy to find Tamil Nadu to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Tamil Nadu to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Tamil Nadu which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Tamil Nadu to Illinois?

Once all potential Tamil Nadu to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Tamil Nadu to Illinois right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Tamil Nadu to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.