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$498+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
CCU — ORD
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap 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 February 13, 2026.

This KLM deal was found by Cheapflights users on 2/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/248:15 pm
CCU
-
ORD
2 stops29h 35m
Multiple Airlines
Mon 4/275:10 pm
ORD
-
CCU
2 stops25h 50m
Multiple Airlines
Deal found 2/11$769
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2511:00 pm
CCU
-
ORD
2 stops44h 05m
Multiple Airlines
Wed 4/291:10 pm
ORD
-
CCU
1 stop20h 35m
Multiple Airlines
Deal found 2/11$943
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2511:00 pm
CCU
-
ORD
2 stops44h 05m
Multiple Airlines
Mon 4/271:10 pm
ORD
-
CCU
1 stop20h 35m
Multiple Airlines
Deal found 2/11$946
This Air France deal was found by Cheapflights users on 2/11. 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.
Wed 5/134:20 pm
CCU
-
ORD
2 stops33h 20m
Air France
Sat 9/195:10 pm
ORD
-
CCU
2 stops25h 50m
Air France
Deal found 2/11$956
This Air France deal was found by Cheapflights users on 2/10. 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.
Wed 5/134:20 pm
CCU
-
ORD
2 stops33h 20m
Air France
Mon 9/215:10 pm
ORD
-
CCU
2 stops28h 45m
Air France
Deal found 2/10$957
This KLM deal was found by Cheapflights users on 2/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:00 pm
CCU
-
ORD
2 stops29h 45m
Multiple Airlines
Sat 9/195:10 pm
ORD
-
CCU
2 stops25h 50m
Multiple Airlines
Deal found 2/11$958
This KLM deal was found by Cheapflights users on 2/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:30 pm
CCU
-
ORD
2 stops26h 15m
KLM
Sun 9/205:10 pm
ORD
-
CCU
2 stops29h 25m
KLM
Deal found 2/12$959
This oojo deal was found by Cheapflights users on 2/11. 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.
Sun 5/314:10 am
CCU
-
ORD
1 stop38h 55m
Etihad Airways
Sun 9/62:00 pm
ORD
-
CCU
1 stop26h 30m
Etihad Airways
Deal found 2/11$965
This oojo deal was found by Cheapflights users on 2/10. 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 3/143:35 am
CCU
-
ORD
1 stop39h 30m
Etihad Airways
Sun 7/52:00 pm
ORD
-
CCU
1 stop26h 30m
Etihad Airways
Deal found 2/10$966
This Justfly.com deal was found by Cheapflights users on 2/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:55 pm
CCU
-
ORD
1 stop22h 10m
Etihad Airways
Wed 4/292:00 pm
ORD
-
CCU
1 stop26h 30m
Etihad Airways
Deal found 2/11$970
This Justfly.com deal was found by Cheapflights users on 2/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:30 pm
CCU
-
ORD
1 stop21h 35m
Etihad Airways
Tue 9/222:00 pm
ORD
-
CCU
1 stop20h 00m
Etihad Airways
Deal found 2/10$971

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 February 13, 2026.

Round-trip from

$769
(KLM)

One-way from

$498
(Kiwi.com)

Popular in

February

Cheapest in

December

Average price

$1,633
From Kolkata Netaji S. Chandra to Illinois
Search Deals
One-way flight from Kolkata Netaji S. Chandra to Illinois
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
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 February 13, 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

Tue 3/24

8:15 pm-3:20 pm

2 stops29h 35m

Chicago O'Hare Intl

Mon 4/27

5:10 pm-5:30 am

2 stops25h 50m

$769

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Thu 5/14

7:00 pm-3:10 pm

2 stops30h 40m

Chicago O'Hare Intl

Wed 9/23

4:50 pm-8:25 am

2 stops29h 05m

$959

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Fri 6/5

4:10 am-8:35 am

1 stop38h 55m

Chicago O'Hare Intl

Fri 9/18

2:00 pm-3:00 am

1 stop26h 30m

$992

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Wed 3/25

8:55 pm-8:35 am

1 stop22h 10m

Chicago O'Hare Intl

Sat 4/25

2:00 pm-8:30 pm

1 stop20h 00m

$993

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Thu 5/14

10:30 pm-3:10 pm

2 stops51h 10m

Chicago O'Hare Intl

Mon 9/21

5:10 pm-5:30 am

2 stops25h 50m

$1,003

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Sun 3/1

8:55 pm-7:35 am

1 stop22h 10m

Chicago O'Hare Intl

Sat 3/14

2:10 pm-8:00 pm

1 stop19h 20m

$1,046

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Fri 6/12

9:30 pm-8:35 am

1 stop21h 35m

Chicago O'Hare Intl

Wed 7/22

2:00 pm-3:00 am

1 stop26h 30m

$1,046

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Sun 6/7

9:30 pm-8:35 am

1 stop21h 35m

Chicago O'Hare Intl

Sat 9/26

2:00 pm-8:30 pm

1 stop20h 00m

$1,046

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Wed 5/13

4:00 am-3:05 pm

1 stop21h 35m

Chicago O'Hare Intl

Sun 9/20

7:20 pm-2:30 am

1 stop20h 40m

$1,065

KolkataChicago

CCU - ORD

CCUORD

Kolkata Netaji S. Chandra

Thu 5/14

9:50 am-3:45 pm

1 stop40h 25m

Chicago O'Hare Intl

Thu 9/17

8:35 pm-8:10 am

1 stop25h 05m

$1,066

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 18 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 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.

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 $797). Flying from Kolkata to Illinois in July is currently the most expensive (average of $1,127). 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 February 13, 2026.
Read through reviews of airlines operating flights from Kolkata to Illinois, such as Qatar Airways, Etihad Airways, and Air India. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,731 reviews

Entertainment

7.4

Food

7.3

Boarding

7.5

Comfort

7.4

Crew

7.9

Overall

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
3,731 reviews
Qatar Airways
7.4
Good
3,731 reviews

Entertainment

7.4

Food

7.3

Boarding

7.5

Comfort

7.4

Crew

7.9

Overall

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
1,394 reviews
Qatar Airways
7.4
Good
3,731 reviews

Entertainment

7.4

Food

7.3

Boarding

7.5

Comfort

7.4

Crew

7.9

Overall

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
2,964 reviews
Qatar Airways
7.4
Good
3,731 reviews

Entertainment

7.4

Food

7.3

Boarding

7.5

Comfort

7.4

Crew

7.9

Overall

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?

    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.

  • How long is the flight from Kolkata to Illinois?

    Airlines like KLM and Etihad Airways fly from Kolkata to Illinois in about 30h 40m. The time it takes to get you to your destination can typically vary by up to 8h 15m. The distance from Kolkata to Illinois is about 7959 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 Etihad Airways ($484), IndiGo ($488), and Air India ($494).

  • 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, December is the cheapest month in which you can book a flight from Kolkata to Illinois (average of $797). Flying from Kolkata to Illinois in July is currently the most expensive (average of $1,127). 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.

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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$900Average$1,197FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$902Average$1,208FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,070Average$1,268FlexibilityNo cancel feeOn-time68%

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