HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$540+ Cheap flights from Kolkata (CCU) to Illinois

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
CCU — ORD
Jan 27 — Feb 31
Mon 1/27
Mon 2/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kolkata to Illinois with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Kolkata to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Kolkata (CCU) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 22, 2025.

Round-trip from

$926
(American Airlines)

One-way from

$540
(Kiwi.com)
From Kolkata Netaji S. Chandra to Illinois
Search Deals
One-way flight from Kolkata Netaji S. Chandra to Illinois
Search Deals

Find flight deals from Kolkata to Illinois

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 January 22, 2025.

This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/34:30 pmCCU - ORD
2 stops28h 49mAmerican Airlines
Thu 8/1411:33 amORD - CCU
2 stops30h 37mAmerican Airlines
Deal found 1/21$926
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/204:30 pmCCU - ORD
2 stops28h 49mMultiple Airlines
Tue 9/237:40 pmORD - CCU
1 stop20h 10mMultiple Airlines
Deal found 1/21$930
This Priceline deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/203:30 pmCCU - ORD
1 stop26h 25mAir India
Tue 9/2312:00 pmORD - CCU
1 stop19h 35mAir India
Deal found 1/21$1,067
This oojo deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/73:50 amCCU - ORD
1 stop40h 05mEtihad Airways
Sat 3/152:10 pmORD - CCU
1 stop19h 20mEtihad Airways
Deal found 1/22$1,194
This FlightHub deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/73:50 amCCU - ORD
2 stops29h 00mQatar Airways
Tue 11/411:45 amORD - CCU
2 stops26h 30mQatar Airways
Deal found 1/22$1,242
This Air France deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/87:30 pmCCU - ORD
2 stops30h 00mAir France
Tue 11/45:20 pmORD - CCU
2 stops27h 45mAir France
Deal found 1/22$1,366
This oojo deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/89:10 amCCU - ORD
1 stop41h 05mEmirates
Sat 3/158:45 pmORD - CCU
1 stop24h 25mEmirates
Deal found 1/22$1,379
This British Airways deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/111:45 amCCU - ORD
2 stops28h 30mBritish Airways
Sun 5/2510:20 pmORD - CCU
2 stops29h 20mBritish Airways
Deal found 1/22$1,396
This Booking.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/242:00 amCCU - ORD
2 stops26h 25mIndiGo
Sat 9/611:45 pmORD - CCU
2 stops30h 05mIndiGo
Deal found 1/21$1,427
This StudentUniverse deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/38:20 pmCCU - ORD
3 stops28h 20mLufthansa
Thu 8/144:05 pmORD - CCU
3 stops29h 45mLufthansa
Deal found 1/21$1,570
This Singapore Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/311:30 pmCCU - ORD
2 stops29h 16mSingapore Airlines
Fri 9/269:50 amORD - CCU
3 stops49h 55mSingapore Airlines
Deal found 1/22$1,937
This KAYAK deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/22:00 amCCU - ORD
2 stops29h 30mThai Airways
Thu 9/2512:30 amORD - CCU
2 stops37h 45mThai Airways
Deal found 1/22$2,015

Find flights from Kolkata to Illinois within your budget

Customize 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 2,558,603 searches. Data last updated January 22, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Tue 6/3

4:30 pm-10:49 am

2 stops28h 49m

Chicago O'Hare Intl

Thu 8/14

11:33 am-4:40 am

2 stops30h 37m

$926

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Tue 5/20

4:30 pm-10:49 am

2 stops28h 49m

Chicago O'Hare Intl

Tue 9/23

7:40 pm-2:20 am

1 stop20h 10m

$930

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Tue 5/20

3:30 pm-7:25 am

1 stop26h 25m

Chicago O'Hare Intl

Tue 9/23

12:00 pm-6:05 pm

1 stop19h 35m

$1,067

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Fri 3/7

3:50 am-8:25 am

1 stop40h 05m

Chicago O'Hare Intl

Sat 3/15

2:10 pm-8:00 pm

1 stop19h 20m

$1,194

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Wed 5/7

3:50 am-10:20 pm

2 stops29h 00m

Chicago O'Hare Intl

Tue 11/4

11:45 am-1:45 am

2 stops26h 30m

$1,242

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Thu 5/8

7:30 pm-3:00 pm

2 stops30h 00m

Chicago O'Hare Intl

Tue 11/4

5:20 pm-8:35 am

2 stops27h 45m

$1,366

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Sat 3/8

9:10 am-2:45 pm

1 stop41h 05m

Chicago O'Hare Intl

Sat 3/15

8:45 pm-7:40 am

1 stop24h 25m

$1,379

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Tue 3/11

1:45 am-7:45 pm

2 stops28h 30m

Chicago O'Hare Intl

Sun 5/25

10:20 pm-2:10 pm

2 stops29h 20m

$1,396

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Tue 6/24

2:00 am-5:55 pm

2 stops26h 25m

Chicago O'Hare Intl

Sat 9/6

11:45 pm-4:20 pm

2 stops30h 05m

$1,427

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Tue 6/3

8:20 pm-2:10 pm

3 stops28h 20m

Chicago O'Hare Intl

Thu 8/14

4:05 pm-8:20 am

3 stops29h 45m

$1,570

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 25 results
1
2
3

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 round-trip 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.

Travel insights for flights from Kolkata to Illinois

Get recent, data-driven insights about flights from Kolkata to Illinois including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Kolkata to Illinois (average of $245). Flying from Kolkata to Illinois in March is currently the most expensive (average of $320). 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 CCU to IL?

Find hourly flight availability from Kolkata to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 22, 2025.

When flying from Kolkata to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 January 22, 2025.
Japan Airlines
8.3
Very good
1,447 reviews

Entertainment

7.8

Boarding

8.4

Food

7.7

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Japan Airlines
8.3
Very good
1,447 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Entertainment

7.8

Boarding

8.4

Food

7.7

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Emirates
8.1
Very good
3,357 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Entertainment

7.8

Boarding

8.4

Food

7.7

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Singapore Airlines
8.1
Very good
1,328 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Entertainment

7.8

Boarding

8.4

Food

7.7

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Thai Airways
7.8
Good
338 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Entertainment

7.8

Boarding

8.4

Food

7.7

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Qatar Airways
7.5
Good
3,747 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Entertainment

7.8

Boarding

8.4

Food

7.7

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

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?

    Most people fly from Kolkata Netaji S. Chandra (CCU) if they book a flight from Kolkata to Illinois. Kolkata Netaji S. Chandra is conveniently located just 8.3 mi from Kolkata’s city center.

  • What are the cheapest airlines to fly from Kolkata to Illinois one-way?

    The cheapest airlines for a one-way flight from Kolkata to Illinois are Qatar Airways ($546), IndiGo ($553), and Etihad Airways ($619).

  • 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 vacation 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, August is the cheapest month in which you can book a flight from Kolkata to Illinois (average of $245). Flying from Kolkata to Illinois in March is currently the most expensive (average of $320). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kolkata to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Kolkata to John F Kennedy Intl flights
Kolkata to Newark flights
Kolkata to San Francisco flights
Kolkata to O'Hare Intl flights
Kolkata to Seattle flights
Kolkata to Dulles Intl flights
Kolkata to Boston flights
Kolkata to Dallas/Fort Worth flights
Kolkata to Orlando flights
Kolkata to Los Angeles flights
Kolkata to George Bush Intcntl flights
Kolkata to San Jose flights
Kolkata to Atlanta flights
Kolkata to Cincinnati flights
Kolkata to Baltimore flights
Kolkata to Detroit flights
Kolkata to Albuquerque flights
Kolkata to Raleigh flights
Kolkata to Columbus flights
Kolkata to Charlotte flights
Kolkata to Miami flights
Kolkata to Minneapolis flights
Kolkata to Jacksonville flights
Kolkata to Sky Harbor Intl flights
Kolkata to Philadelphia flights
Kolkata to Austin flights
Kolkata to New Orleans flights
Kolkata to Nashville flights
Kolkata to San Antonio flights
Kolkata to San Diego flights
Kolkata to Richmond flights
Kolkata to Salt Lake City flights
Kolkata to Pittsburgh flights
Kolkata to Portland flights
Kolkata to Oakland flights
Kolkata to Kansas City flights
Kolkata to Las Vegas flights

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 2,558,603 searches. Data last updated January 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$894Average$1,251FlexibilityNo cancel feeOn-time68%
Etihad AirwaysCheapest$1,109Average$1,359FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$1,152Average$1,364FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.