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Cheap flights from Illinois to Kolkata from ₹ 33,814

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 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CCU
25 Feb — 4 Mar1
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 26 January 2026.

Sun 15/314:30
ORD
-
CCU
1 stop20h 15m
Air India
Sat 28/322:00
CCU
-
ORD
2 stops23h 40m
Air India
Deal found 26/1₹ 78,166
Tue 10/306:04
ORD
-
CCU
2 stops24h 16m
Air India
Mon 16/300:30
CCU
-
ORD
2 stops46h 30m
Air India
Deal found 24/1₹ 78,624
Tue 24/212:50
ORD
-
CCU
2 stops48h 15m
Multiple Airlines
Tue 17/313:30
CCU
-
ORD
2 stops33h 30m
Multiple Airlines
Deal found 26/1₹ 78,808
Fri 20/314:30
ORD
-
CCU
1 stop20h 15m
Air India
Sat 28/322:00
CCU
-
ORD
2 stops23h 40m
Air India
Deal found 26/1₹ 78,991
Fri 13/213:30
ORD
-
CCU
1 stop23h 15m
Air India
Thu 19/310:30
CCU
-
ORD
2 stops36h 30m
Air India
Deal found 26/1₹ 79,174
Mon 23/220:20
ORD
-
CCU
2 stops26h 15m
Multiple Airlines
Sat 28/200:30
CCU
-
ORD
2 stops46h 30m
Multiple Airlines
Deal found 24/1₹ 79,816
Wed 11/314:30
ORD
-
CCU
1 stop20h 15m
Air India
Wed 8/422:05
CCU
-
ORD
3 stops47h 35m
Air India
Deal found 26/1₹ 80,366
Wed 11/314:30
ORD
-
CCU
1 stop41h 25m
Air India
Tue 7/410:30
CCU
-
ORD
1 stop35h 10m
Air India
Deal found 26/1₹ 80,457
Mon 9/213:30
ORD
-
CCU
2 stops46h 20m
Air India
Tue 24/221:00
CCU
-
ORD
2 stops26h 00m
Air India
Deal found 23/1₹ 80,641
Fri 13/213:30
ORD
-
CCU
1 stop22h 15m
Air India
Tue 3/322:00
CCU
-
ORD
2 stops25h 00m
Air India
Deal found 24/1₹ 80,915
Wed 11/213:30
ORD
-
CCU
1 stop27h 15m
Air India
Thu 26/207:00
CCU
-
ORD
2 stops40h 00m
Air India
Deal found 25/1₹ 81,099
Tue 24/213:10
ORD
-
CCU
2 stops23h 55m
Multiple Airlines
Fri 6/315:10
CCU
-
ORD
2 stops35h 25m
Multiple Airlines
Deal found 24/1₹ 81,190

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 26 January 2026.

Round-trip from

₹ 78,624

One-way from

₹ 33,814

Popular in

December

Cheapest in

September

Average price

₹ 87,055
Air India
  • Air India
  • 10/3-16/3
  • 4 total stops
  • 70h 46m total
  • Illinois to Kolkata
Search Deals
IndiGo
  • IndiGo
  • 22/2
  • 2 total stops
  • 26h 15m total
  • Illinois to Kolkata
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (₹ 1,452,667 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (₹ 463,003 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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 26 January 2026.
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

Fri 13/3

14:30-04:15

1 stop27h 15m

Kolkata Netaji S. Chandra

Sat 11/4

22:05-11:10

3 stops47h 35m

₹ 80,457

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Wed 11/3

14:30-18:25

1 stop41h 25m

Kolkata Netaji S. Chandra

Tue 7/4

10:30-11:10

1 stop35h 10m

₹ 80,457

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Wed 25/2

19:45-18:50

1 stop35h 35m

Kolkata Netaji S. Chandra

Thu 12/3

09:15-15:45

1 stop41h 00m

₹ 81,190

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 24/2

19:45-07:40

1 stop24h 25m

Kolkata Netaji S. Chandra

Tue 3/3

09:15-14:55

1 stop41h 10m

₹ 81,190

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Wed 11/3

14:30-18:25

1 stop41h 25m

Kolkata Netaji S. Chandra

Sat 25/4

19:05-11:10

1 stop26h 35m

₹ 83,206

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Thu 12/3

14:10-00:35

2 stops23h 55m

Kolkata Netaji S. Chandra

Sun 26/4

11:25-11:10

3 stops34h 15m

₹ 84,031

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 10/3

20:45-07:40

1 stop24h 25m

Kolkata Netaji S. Chandra

Sun 10/5

09:50-15:45

1 stop40h 25m

₹ 85,864

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sun 8/3

14:30-04:15

1 stop27h 15m

Kolkata Netaji S. Chandra

Sat 4/4

19:05-11:10

1 stop26h 35m

₹ 85,955

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Fri 6/3

13:30-04:15

1 stop27h 15m

Kolkata Netaji S. Chandra

Sun 5/4

19:05-11:10

1 stop26h 35m

₹ 86,689

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 10/2

13:10-00:35

2 stops23h 55m

Kolkata Netaji S. Chandra

Wed 25/2

08:45-07:35

2 stops34h 20m

₹ 87,055

Flights are sorted by cheapest return flights first.

Deals found on 25/1

Showing 1-10 of 31 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 ₹ 64,971). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 93,745). 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.

How much does it cost for a return flight from Illinois to Kolkata?

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 ₹ 80,457, Air India can have you in Kolkata from Illinois in 27h 15m. 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 ₹ 64,971). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 93,745). 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

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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