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Cheap flights from Kolkata to Illinois from ₹ 43,216

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
CCU — ORD
9 Apr — 16 Apr1
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 10 March 2026.

Tue 21/419:55
CCU
-
ORD
2 stops25h 45m
Multiple Airlines
Tue 28/417:10
ORD
-
CCU
2 stops28h 35m
Multiple Airlines
Deal found 7/3₹ 79,521
Sun 19/422:00
CCU
-
ORD
2 stops23h 40m
Air India
Sun 26/413:10
ORD
-
CCU
1 stop23h 35m
Air India
Deal found 4/3₹ 86,339
Tue 21/404:10
CCU
-
ORD
1 stop38h 55m
Etihad Airways
Tue 28/414:00
ORD
-
CCU
1 stop20h 00m
Etihad Airways
Deal found 7/3₹ 86,431
Mon 23/320:55
CCU
-
ORD
1 stop22h 10m
Etihad Airways
Tue 7/414:00
ORD
-
CCU
1 stop20h 00m
Etihad Airways
Deal found 7/3₹ 86,524
Wed 20/517:30
CCU
-
ORD
2 stops32h 10m
Air France
Thu 12/1117:20
ORD
-
CCU
2 stops26h 55m
Air France
Deal found 6/3₹ 87,537
Sun 17/517:30
CCU
-
ORD
2 stops32h 10m
Air France
Sun 13/917:10
ORD
-
CCU
2 stops27h 50m
Air France
Deal found 5/3₹ 87,629
Mon 18/522:30
CCU
-
ORD
2 stops26h 15m
Multiple Airlines
Sun 13/917:10
ORD
-
CCU
2 stops25h 05m
Multiple Airlines
Deal found 5/3₹ 87,814
Tue 2/622:30
CCU
-
ORD
2 stops26h 30m
KLM
Wed 23/916:50
ORD
-
CCU
2 stops29h 45m
KLM
Deal found 5/3₹ 87,906
Sun 19/421:30
CCU
-
ORD
1 stop21h 35m
Multiple Airlines
Sun 26/413:10
ORD
-
CCU
1 stop34h 05m
Multiple Airlines
Deal found 4/3₹ 88,090

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 10 March 2026.

Round-trip from

₹ 79,521

One-way from

₹ 43,216

Popular in

August

Cheapest in

December

Average price

₹ 101,082
21/4-28/4
  • 21/4-28/4
  • 4 total stops
  • 54h 20m total
  • Kolkata to Illinois
Search Deals
7/5
  • 7/5
  • 2 total stops
  • 34h 10m total
  • Kolkata to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (₹ 1,525,141 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (₹ 528,666 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 10 March 2026.
Use the filters below to find and compare flights from Kolkata to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Mon 11/5

21:30-08:35

1 stop21h 35m

Chicago O'Hare Intl

Tue 19/5

14:00-20:30

1 stop20h 00m

₹ 96,107

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Sun 24/5

20:45-14:30

2 stops28h 15m

Chicago O'Hare Intl

Sun 15/11

17:20-07:10

2 stops26h 20m

₹ 98,595

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Wed 18/3

03:25-15:45

1 stop22h 50m

Chicago O'Hare Intl

Tue 15/9

19:20-02:30

1 stop20h 40m

₹ 101,727

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Thu 23/4

22:00-11:10

1 stop23h 40m

Chicago O'Hare Intl

Sun 18/10

13:10-21:15

1 stop21h 35m

₹ 102,833

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Thu 9/7

09:50-15:45

1 stop40h 25m

Chicago O'Hare Intl

Thu 19/11

19:45-07:40

1 stop24h 25m

₹ 108,362

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Tue 14/4

09:50-15:45

1 stop40h 25m

Chicago O'Hare Intl

Mon 6/7

20:35-08:10

1 stop25h 05m

₹ 110,481

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Sun 10/5

21:30-08:35

1 stop21h 35m

Chicago O'Hare Intl

Thu 21/5

14:00-20:30

1 stop20h 00m

₹ 112,048

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Mon 11/5

21:30-08:35

1 stop21h 35m

Chicago O'Hare Intl

Sat 23/5

14:00-20:30

1 stop20h 00m

₹ 112,232

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Tue 12/5

04:10-08:35

1 stop38h 55m

Chicago O'Hare Intl

Sat 30/5

14:00-20:30

1 stop20h 00m

₹ 112,232

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Sun 10/5

21:30-08:35

1 stop21h 35m

Chicago O'Hare Intl

Tue 2/6

14:00-20:30

1 stop20h 00m

₹ 121,999

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 20 resultsSorted by cheapest first
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 ₹ 73,439). Flying from Kolkata to Illinois in July is currently the most expensive (average of ₹ 103,847). 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 Kolkata to Illinois?

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 10 March 2026.
Get a feel of what it's like to fly with Emirates,Qatar Airways, andEtihad Airways 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.
Emirates
8.1
Very Good
3,540 reviews
Check prices

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Food

7.9

Overall

8.1

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Emirates
8.1
Very Good
3,540 reviews
Emirates
8.1
Very Good
3,540 reviews
Check prices

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Food

7.9

Overall

8.1

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Qatar Airways
7.4
Good
3,744 reviews
Emirates
8.1
Very Good
3,540 reviews
Check prices

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Food

7.9

Overall

8.1

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Etihad Airways
7.3
Good
1,424 reviews
Emirates
8.1
Very Good
3,540 reviews
Check prices

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Food

7.9

Overall

8.1

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Air India
5.5
Fair
2,968 reviews
Emirates
8.1
Very Good
3,540 reviews
Check prices

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Food

7.9

Overall

8.1

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.

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 21h 35m. Etihad Airways provides one of the quickest options available for as low as ₹ 96,107. 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 ₹ 73,439). Flying from Kolkata to Illinois in July is currently the most expensive (average of ₹ 103,847). 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

Browse thousands of different options on Cheapflights for your next trip

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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 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest₹ 90,955Average₹ 122,923FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
EmiratesCheapest₹ 98,578Average₹ 126,726FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Qatar AirwaysCheapest₹ 100,830Average₹ 124,108FlexibilityNo 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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