Cheap flights from Chennai to Illinois from ₹ 43,790
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chennai to Illinois departing on 22/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
ChennaiChicago
MAA Chennai - ORD Chicago O'Hare Intl
MAAORD
Chennai
Tue 10/11
09:55-07:35
1 stop33h 10m
Chicago O'Hare Intl
Fri 7/5
14:00-20:10
1 stop19h 40m
ChennaiChicago
MAA Chennai - ORD Chicago O'Hare Intl
MAAORD
Chennai
Tue 10/11
09:55-07:35
1 stop33h 10m
Chicago O'Hare Intl
Fri 7/5
08:50-02:50
2 stops31h 30m
ChennaiChicago
MAA Chennai - ORD Chicago O'Hare Intl
MAAORD
Chennai
Tue 10/11
09:55-07:35
1 stop33h 10m
Chicago O'Hare Intl
Fri 7/5
08:50-02:50
2 stops31h 30m
ChennaiChicago
MAA Chennai - ORD Chicago O'Hare Intl
MAAORD
Chennai
Sun 21/2
07:10-15:05
2 stops43h 25m
Chicago O'Hare Intl
Fri 21/5
20:00-14:40
2 stops32h 10m
ChennaiChicago
MAA Chennai - ORD Chicago O'Hare Intl
MAAORD
Chennai
Thu 5/11
21:50-07:35
1 stop21h 15m
Chicago O'Hare Intl
Sat 27/3
14:15-02:50
1 stop26h 05m
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
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
ChennaiChicago
MAA Chennai - ORD Chicago O'Hare Intl
MAAORD
Chennai
Mon 15/3
21:45-16:00
1 stop28h 45m
Chicago O'Hare Intl
Tue 30/3
20:35-20:30
1 stop37h 25m
ChennaiChicago
MAA Chennai - ORD Chicago O'Hare Intl
MAAORD
Chennai
Mon 21/12
21:45-15:10
1 stop28h 55m
Chicago O'Hare Intl
Wed 20/1
19:45-02:20
1 stop19h 05m
ChennaiChicago
MAA Chennai - ORD Chicago O'Hare Intl
MAAORD
Chennai
Thu 25/2
03:55-15:10
1 stop22h 45m
Chicago O'Hare Intl
Thu 22/7
20:35-20:30
1 stop37h 25m
See travel insights to Illinois from
How to get the cheapest flight ticket from Chennai 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
What is the cheapest month to fly to Illinois?
In general, April is the cheapest month to fly from Chennai to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 89,126. If you aren’t able to travel during the month of April, then book flights to Illinois from Chennai during March instead. Flights to Illinois in March, while not as cheap as those in April, still average around ₹ 90,383.
How far in advance should I book a flight from Chennai to Illinois?
You are more likely to see cheaper flights to Illinois from Chennai when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around ₹ 97,343 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 Chennai for as low as ₹ 84,776 on momondo.
Cheap Chennai to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chennai to Illinois
Frequently asked questions about flying from Chennai to Illinois
When did momondo last update prices for flights from Chennai Airport to Illinois?
Prices for flights from Chennai Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Chennai Airport to Illinois?
As of October 2026, there are 2 operators available to choose from for flights from Chennai Airport to Illinois.
How old do you have to be to fly from Chennai Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chennai Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Chennai to Illinois
Compare and see reviews for airlines that fly from Chennai to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom ₹ 74,863 | Free Cancellation | Rating 7.3 1,539 reviews | |||
| PriceFrom ₹ 94,027 | Free Cancellation | Rating 8.1 3,672 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chennai to Illinois?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Chennai.
Can I find flights from Chennai to Illinois with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Illinois from Chennai with this policy.
How can momondo help me find flights from Chennai to Illinois?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Chennai.
I’m not ready to book a flight from Chennai to Illinois right now. Can momondo alert me if prices change?
Price alerts on flights to Illinois from Chennai are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.