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Cheap flights from Illinois to Kolkata from ₹ 35,006

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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CCU
28 Dec — 4 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Kolkata

Keep the following information in mind while searching for Illinois to Kolkata flight deals. Data was last updated 28 November 2025.

Round-trip from

₹ 83,586

One-way from

₹ 35,006

Popular in

December

Cheapest in

March

Average price

₹ 105,465
25/1-18/2
  • 25/1-18/2
  • 3 total stops
  • 49h 25m total
  • Illinois to Kolkata
Search Deals
Etihad Airways
  • Etihad Airways
  • 16/1
  • 1 total stop
  • 26h 00m total
  • Illinois to Kolkata
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (₹ 1,465,279 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (₹ 436,654 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find 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 28 November 2025.

Sun 7/1213:30ORD - CCU
1 stop23h 15mAir India
Tue 27/113:30CCU - ORD
2 stops33h 30mAir India
Deal found 27/11₹ 112,430
Sun 7/1213:30ORD - CCU
1 stop31h 40mAir India
Thu 29/121:00CCU - ORD
2 stops26h 00mAir India
Deal found 27/11₹ 113,055
Fri 5/1213:30ORD - CCU
1 stop41h 25mAir India
Sat 13/1219:05CCU - ORD
2 stops27h 55mAir India
Deal found 27/11₹ 113,680
Thu 4/1211:50ORD - CCU
2 stops35h 50mTurkish Airlines
Fri 12/1218:30CCU - ORD
2 stops51h 05mTurkish Airlines
Deal found 26/11₹ 113,859
Thu 4/1218:30ORD - CCU
3 stops25h 45mMultiple Airlines
Fri 12/1213:30CCU - ORD
2 stops40h 25mMultiple Airlines
Deal found 26/11₹ 115,913
Mon 1/1213:30ORD - CCU
1 stop22h 15mAir India
Wed 3/1206:00CCU - ORD
3 stops65h 00mAir India
Deal found 27/11₹ 116,627
Sun 7/1218:50ORD - CCU
2 stops30h 05mMultiple Airlines
Sun 25/119:55CCU - ORD
2 stops27h 05mMultiple Airlines
Deal found 27/11₹ 116,895
Mon 8/1213:10ORD - CCU
1 stop26h 00mEtihad Airways
Tue 27/103:35CCU - ORD
1 stop39h 30mEtihad Airways
Deal found 27/11₹ 117,520
Sun 14/1211:50STL - CCU
2 stops26h 35mQatar Airways
Fri 16/103:25CCU - STL
2 stops54h 49mQatar Airways
Deal found 26/11₹ 200,659
Sat 13/1215:59STL - CCU
2 stops46h 26mQatar Airways
Tue 6/103:25CCU - STL
2 stops32h 04mQatar Airways
Deal found 28/11₹ 311,393
Sun 14/1215:13STL - CCU
2 stops28h 57mEmirates
Sat 17/120:25CCU - STL
2 stops37h 05mEmirates
Deal found 27/11₹ 391,406
Sat 13/1215:13STL - CCU
2 stops28h 57mEmirates
Wed 7/120:25CCU - STL
2 stops34h 32mEmirates
Deal found 28/11₹ 461,508

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 28 November 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

Mon 26/1

13:30-23:35

2 stops22h 35m

Kolkata Netaji S. Chandra

Sat 21/2

19:55-11:30

2 stops27h 05m

₹ 84,122

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sat 31/1

13:10-20:00

1 stop19h 20m

Kolkata Netaji S. Chandra

Sat 21/2

19:55-11:30

2 stops27h 05m

₹ 84,211

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sat 31/1

13:10-20:00

1 stop19h 20m

Kolkata Netaji S. Chandra

Sun 15/2

20:55-07:35

1 stop22h 10m

₹ 84,479

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sat 7/2

13:10-20:00

1 stop19h 20m

Kolkata Netaji S. Chandra

Sun 22/2

20:55-07:35

1 stop22h 10m

₹ 84,479

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 20/1

19:45-07:40

1 stop24h 25m

Kolkata Netaji S. Chandra

Wed 25/3

20:25-15:45

1 stop29h 50m

₹ 86,265

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 31/3

19:20-02:30

1 stop20h 40m

Kolkata Netaji S. Chandra

Tue 14/4

03:50-05:00

2 stops35h 40m

₹ 88,497

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Thu 29/1

13:35-01:55

2 stops24h 50m

Kolkata Netaji S. Chandra

Mon 16/2

03:25-23:18

2 stops31h 23m

₹ 91,176

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sun 25/1

19:45-07:40

1 stop24h 25m

Kolkata Netaji S. Chandra

Sat 21/2

09:15-14:55

1 stop41h 10m

₹ 91,712

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Mon 26/1

19:45-00:25

1 stop41h 10m

Kolkata Netaji S. Chandra

Sat 21/2

09:15-14:55

1 stop41h 10m

₹ 91,712

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 27/1

19:45-07:40

1 stop24h 25m

Kolkata Netaji S. Chandra

Sat 21/2

09:15-14:55

1 stop41h 10m

₹ 91,712

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 33 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 ₹ 63,314). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 95,016). 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 28 November 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 ₹ 84,479, 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 ₹ 63,314). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 95,016). 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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How does Cheapflights help users find flights from Illinois to Kolkata?

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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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