Cheap flights from Chennai to Illinois from ₹ 36,308
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 15/10. 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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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, November 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 ₹ 88,629. If you aren’t able to travel during the month of November, then book flights to Illinois from Chennai during October instead. Flights to Illinois in October, while not as cheap as those in November, still average around ₹ 88,800.
What is the cheapest day to depart on your flight to Illinois?
On average, the least expensive day to fly to Illinois from Chennai is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as ₹ 95,040. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Chennai to Illinois on a Thursday will generally be more expensive and average around ₹ 111,198. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Illinois?
According to our data, the cheapest time of day to fly to Illinois is in the afternoon. momondo users have found flights departing from Chennai to Illinois in the afternoon for as low as ₹ 100,863. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Illinois is in the morning when prices are around ₹ 106,384.
How far in advance should I book a flight 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 ₹ 99,768 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 ₹ 86,917 on momondo.
What is the cheapest airline that flies from Chennai to Illinois?
Air India, Etihad Airways, and IndiGo are the most popular carriers operating from Chennai to Illinois
Which airlines fly to Illinois?
Etihad Airways, Emirates and British Airways are the top three most popular airlines that fly to Illinois from Chennai according to our data. Etihad Airways is the first choice among our users, with 31% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
Cheap Chennai to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight 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 July 2025, there are 6 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 ₹ 77,047 | Free Cancellation | Rating 7.4 1,224 reviews | |||
| PriceFrom ₹ 77,790 | Free Cancellation | Rating 7.4 3,593 reviews | |||
| PriceFrom ₹ 78,110 | Free Cancellation | Rating 6.6 7,089 reviews | |||
| PriceFrom ₹ 82,048 | Free Cancellation | Rating 5.5 2,924 reviews | |||
| PriceFrom ₹ 83,089 | Free Cancellation | Rating 6.8 7,205 reviews | |||
| PriceFrom ₹ 89,637 | Free Cancellation | Rating 8.1 3,285 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.