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Cheap flights from Kolkata to Illinois from ₹ 42,611

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 14/2. Fares are subject to change and may not be available on all flights or dates of travel.
CCU — ORD
25 Feb — 4 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Kolkata to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Kolkata to Illinois
Explore the most affordable flight options available from Kolkata to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 January 2026.

Tue 3/221:30
CCU
-
ORD
2 stops28h 20m
Multiple Airlines
Wed 18/217:20
ORD
-
CCU
2 stops26h 55m
Multiple Airlines
Deal found 26/1₹ 76,700
Wed 11/323:00
CCU
-
ORD
2 stops51h 35m
Multiple Airlines
Wed 18/314:30
ORD
-
CCU
1 stop20h 15m
Multiple Airlines
Deal found 25/1₹ 78,899
Sun 1/207:00
CCU
-
ORD
1 stop40h 00m
Air India
Sun 8/213:30
ORD
-
CCU
1 stop41h 25m
Air India
Deal found 25/1₹ 81,923
Thu 12/307:05
CCU
-
ORD
2 stops36h 00m
Multiple Airlines
Thu 19/314:10
ORD
-
CCU
2 stops23h 55m
Multiple Airlines
Deal found 26/1₹ 83,939
Sat 31/101:40
CCU
-
ORD
2 stops25h 00m
Air France
Sun 8/217:20
ORD
-
CCU
2 stops26h 55m
Air France
Deal found 25/1₹ 85,039
Wed 11/320:55
CCU
-
ORD
1 stop22h 10m
Etihad Airways
Wed 18/314:10
ORD
-
CCU
1 stop26h 00m
Etihad Airways
Deal found 25/1₹ 88,338
Fri 20/203:35
CCU
-
ORD
1 stop39h 30m
Etihad Airways
Sat 28/213:10
ORD
-
CCU
1 stop19h 20m
Etihad Airways
Deal found 24/1₹ 88,613
Fri 6/203:35
CCU
-
ORD
1 stop39h 30m
Etihad Airways
Sat 28/213:10
ORD
-
CCU
1 stop19h 20m
Etihad Airways
Deal found 24/1₹ 89,346

Find flight deals from Kolkata to Illinois

Keep the following information in mind while searching for Kolkata to Illinois flight deals. Data was last updated 26 January 2026.

Round-trip from

₹ 78,899

One-way from

₹ 42,611

Popular in

February

Cheapest in

December

Average price

₹ 145,336
Air India
  • Air India
  • 11/3-18/3
  • 3 total stops
  • 71h 50m total
  • Kolkata to Illinois
Search Deals
Air India
  • Air India
  • 14/2
  • 3 total stops
  • 54h 20m total
  • Kolkata to Illinois
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (₹ 2,617,691 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (₹ 854,158 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 Kolkata to Illinois 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 Kolkata to Illinois that are best for you.

Fly from

Kolkata

Fly to

Illinois

Route

Depart

Return

Price

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Sat 2/5

04:10-08:35

1 stop38h 55m

Chicago O'Hare Intl

Tue 1/9

14:00-20:30

1 stop20h 00m

₹ 90,446

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Mon 16/2

03:35-07:35

1 stop39h 30m

Chicago O'Hare Intl

Sat 21/2

13:10-20:00

1 stop19h 20m

₹ 90,721

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Mon 16/3

16:30-08:35

2 stops26h 35m

Chicago O'Hare Intl

Wed 19/8

13:10-20:15

1 stop20h 35m

₹ 93,195

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Fri 20/3

16:30-08:35

2 stops26h 35m

Chicago O'Hare Intl

Wed 19/8

13:10-20:15

1 stop20h 35m

₹ 93,195

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Sat 21/3

18:55-12:30

3 stops52h 05m

Chicago O'Hare Intl

Mon 24/8

13:10-20:15

1 stop20h 35m

₹ 93,378

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Fri 6/3

18:30-14:20

2 stops31h 20m

Chicago O'Hare Intl

Fri 14/8

17:10-04:45

2 stops25h 05m

₹ 93,561

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Wed 18/3

15:00-08:35

2 stops28h 05m

Chicago O'Hare Intl

Mon 24/8

13:10-20:15

1 stop20h 35m

₹ 96,494

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Fri 20/3

16:30-08:35

2 stops26h 35m

Chicago O'Hare Intl

Sun 23/8

13:10-20:15

1 stop20h 35m

₹ 96,769

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Wed 29/4

09:50-15:45

1 stop40h 25m

Chicago O'Hare Intl

Wed 2/9

20:35-08:10

1 stop25h 05m

₹ 97,227

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Tue 28/4

09:50-15:45

1 stop40h 25m

Chicago O'Hare Intl

Tue 1/9

20:35-08:10

1 stop25h 05m

₹ 97,227

Flights are sorted by cheapest return flights first.

Deals found on 25/1

Showing 1-10 of 17 results
1
2

Best time to book a flight from Kolkata to Illinois

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

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

Currently, December is the cheapest month in which you can book a flight from Kolkata to Illinois (average of ₹ 73,035). Flying from Kolkata to Illinois in July is currently the most expensive (average of ₹ 103,275). 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.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 26 January 2026.
Get a feel of what it's like to fly with Qatar Airways, Etihad Airways, andAir India from Kolkata to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,733 reviews
Check prices

Boarding

7.5

Entertainment

7.4

Overall

7.4

Crew

7.9

Food

7.3

Comfort

7.4

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Qatar Airways
7.4
Good
3,733 reviews
Qatar Airways
7.4
Good
3,733 reviews
Check prices

Boarding

7.5

Entertainment

7.4

Overall

7.4

Crew

7.9

Food

7.3

Comfort

7.4

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Etihad Airways
7.3
Good
1,376 reviews
Qatar Airways
7.4
Good
3,733 reviews
Check prices

Boarding

7.5

Entertainment

7.4

Overall

7.4

Crew

7.9

Food

7.3

Comfort

7.4

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Air India
5.5
Fair
2,974 reviews
Qatar Airways
7.4
Good
3,733 reviews
Check prices

Boarding

7.5

Entertainment

7.4

Overall

7.4

Crew

7.9

Food

7.3

Comfort

7.4

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Related info for your journey

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

    Located just 13.4 km from the city centre, Kolkata Netaji S. Chandra (CCU) is the airport most travellers will use when flying to Illinois from Kolkata.

  • How long is the flight from Kolkata to Illinois?

    A quick flight from Kolkata to Illinois can take about 38h 55m. Etihad Airways provides one of the quickest options available for as low as ₹ 90,446. Airlines will cover a distance of 12809 km. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Kolkata to Illinois (average of ₹ 73,035). Flying from Kolkata to Illinois in July is currently the most expensive (average of ₹ 103,275). 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 Kolkata to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Kolkata to Illinois

Discover the top 3 airlines that operate flights from Kolkata to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 454,620 searches. Data last updated 26 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest₹ 86,274Average₹ 111,605FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest₹ 90,454Average₹ 122,246FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Qatar AirwaysCheapest₹ 97,173Average₹ 123,425FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

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 Kolkata to Illinois?

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

Cheapflights helps you find that perfect flight to Illinois from Kolkata by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Illinois from Kolkata? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Kolkata to Illinois 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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