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Cheap flights from Illinois to Kolkata from ₹ 36,174

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CCU
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Kolkata

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Kolkata
Explore the most affordable flight options available from Illinois to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Mon 29/1213:30ORD - CCU
1 stop20h 15mAir India
Tue 3/222:00CCU - ORD
2 stops25h 00mAir India
Deal found 2/12₹ 93,135
Mon 29/1213:30ORD - CCU
1 stop20h 15mAir India
Thu 5/222:00CCU - ORD
2 stops25h 00mAir India
Deal found 2/12₹ 93,675
Mon 29/1213:30ORD - CCU
1 stop20h 15mAir India
Sat 7/222:00CCU - ORD
2 stops25h 00mAir India
Deal found 2/12₹ 97,545
Wed 31/1213:30ORD - CCU
1 stop22h 15mAir India
Tue 3/213:30CCU - ORD
2 stops33h 30mAir India
Deal found 2/12₹ 103,034
Wed 31/1213:30ORD - CCU
1 stop20h 15mAir India
Sun 1/222:00CCU - ORD
2 stops25h 00mAir India
Deal found 2/12₹ 103,574
Tue 30/1219:45ORD - CCU
1 stop24h 25mEmirates
Wed 4/220:25CCU - ORD
1 stop30h 00mEmirates
Deal found 2/12₹ 105,373
Wed 31/1213:30ORD - CCU
1 stop20h 15mAir India
Sat 7/222:00CCU - ORD
2 stops25h 00mAir India
Deal found 2/12₹ 107,443
Tue 30/1219:45ORD - CCU
1 stop24h 25mEmirates
Tue 3/209:15CCU - ORD
1 stop41h 10mEmirates
Deal found 2/12₹ 107,803
Sun 7/1213:30ORD - CCU
1 stop20h 15mAir India
Tue 16/1222:00CCU - ORD
2 stops25h 00mAir India
Deal found 3/12₹ 111,133
Mon 29/1218:50ORD - CCU
2 stops24h 35mMultiple Airlines
Sun 1/219:55CCU - ORD
2 stops27h 05mMultiple Airlines
Deal found 2/12₹ 111,402
Sun 7/1213:30ORD - CCU
1 stop20h 15mAir India
Thu 18/1222:00CCU - ORD
2 stops25h 00mAir India
Deal found 3/12₹ 111,762
Wed 31/1211:50ORD - CCU
2 stops37h 20mTurkish Airlines
Wed 4/221:30CCU - ORD
2 stops32h 25mTurkish Airlines
Deal found 2/12₹ 112,662

Find flight deals from Illinois to Kolkata

Keep the following information in mind while searching for Illinois to Kolkata flight deals. Data was last updated 5 December 2025.

Round-trip from

₹ 84,587

One-way from

₹ 36,174

Popular in

December

Cheapest in

March

Average price

₹ 153,066
Air India
  • Air India
  • 28/1-8/4
  • 3 total stops
  • 69h 49m total
  • Illinois to Kolkata
Search Deals
Air India
  • Air India
  • 14/1
  • 1 total stop
  • 20h 15m total
  • Illinois to Kolkata
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (₹ 1,488,533 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (₹ 443,283 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Kolkata 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 5 December 2025.
Use the filters below to find and compare flights from Illinois to Kolkata that are best for you.

Fly from

Illinois

Fly to

Kolkata

Route

Depart

Return

Price

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Thu 26/2

13:10-20:00

1 stop19h 20m

Kolkata Netaji S. Chandra

Sat 21/3

03:35-08:35

1 stop39h 30m

₹ 85,936

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sat 28/2

18:50-01:55

1 stop19h 35m

Kolkata Netaji S. Chandra

Thu 19/3

03:25-15:45

1 stop22h 50m

₹ 86,296

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 3/3

18:50-01:55

1 stop19h 35m

Kolkata Netaji S. Chandra

Fri 20/3

03:25-15:45

1 stop22h 50m

₹ 86,296

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Fri 6/3

13:10-03:40

1 stop27h 00m

Kolkata Netaji S. Chandra

Fri 27/3

03:35-08:45

1 stop39h 40m

₹ 87,736

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Mon 2/3

19:45-18:50

1 stop35h 35m

Kolkata Netaji S. Chandra

Tue 17/3

09:15-15:45

1 stop41h 00m

₹ 87,826

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 3/3

19:45-07:40

1 stop24h 25m

Kolkata Netaji S. Chandra

Thu 21/5

09:45-15:45

1 stop40h 30m

₹ 88,006

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Mon 2/3

19:45-18:50

1 stop35h 35m

Kolkata Netaji S. Chandra

Mon 30/3

09:45-15:45

1 stop40h 30m

₹ 88,006

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Wed 4/3

19:45-07:40

1 stop24h 25m

Kolkata Netaji S. Chandra

Thu 21/5

09:45-15:45

1 stop40h 30m

₹ 88,006

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sun 8/3

17:10-09:50

2 stops30h 10m

Kolkata Netaji S. Chandra

Wed 1/4

17:30-15:55

2 stops32h 55m

₹ 88,366

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Mon 2/3

18:50-09:50

2 stops51h 30m

Kolkata Netaji S. Chandra

Mon 30/3

17:30-15:55

2 stops32h 55m

₹ 88,366

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 34 results
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Best time to book a flight from Illinois to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata 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 Kolkata

What is the cheapest month to book a flight from Illinois to Kolkata?

Currently, August is the cheapest month in which you can book a flight from Illinois to Kolkata (average of ₹ 63,800). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 96,285). 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 CCU?

Find hourly flight availability from Illinois to Kolkata. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 December 2025.

It’s typically best to fly out from Illinois to Kolkata in the afternoon. Doing so could potentially save you 47% on the flight price compared to flying in the evening, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Kolkata. 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 Kolkata from Illinois?

    For a flight from Illinois to Kolkata, you will be flying into Netaji S. Chandra. Kolkata Netaji S. Chandra (CCU) is just 13.4 km from the centre of the city.

  • How long is the flight from Illinois to Kolkata?

    For as low as ₹ 85,936, Etihad Airways can have you in Kolkata from Illinois in 19h 20m. The distance from Illinois to Kolkata is about 12809 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Illinois to Kolkata that include hotel bookings?

    Yes. In addition to deals on Illinois to Kolkata flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Kolkata?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Kolkata.

  • Can I find deals for business class flights from Illinois to Kolkata?

    Yes. Cheapflights offers flight deals from Illinois to Kolkata 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 Kolkata?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Kolkata (average of ₹ 63,800). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 96,285). 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

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Alternative routes for Illinois to Kolkata

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Fly with Cheapflights

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How does Cheapflights help users find flights from Illinois to Kolkata?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois to Kolkata. 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 Kolkata?

Millions of users choose and trust Cheapflights to book the best flight deals from Illinois to Kolkata for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Illinois to Kolkata with no change fees?

Yes! Cheapflights helps users easily find flights from Illinois to Kolkata with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Kolkata become cheaper?

Yes, Cheapflights offers price alerts on Illinois to Kolkata flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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