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$416+ Cheap flights from Illinois to Kolkata (CCU)

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CCU
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Illinois to Kolkata

Keep the following information in mind while searching for Illinois to Kolkata flight deals. Data was last updated September 17, 2025.

Round-trip from

$904
(Booking.com)

One-way from

$416
(Booking.com)

Popular in

December

Cheapest in

March

Average price

$894
From Illinois to Kolkata Netaji S. Chandra
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One-way flight from Illinois to Kolkata Netaji S. Chandra
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Highest demand for flights based on searches. 17% potential increase in price ($240 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($70 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Illinois to Kolkata

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 September 17, 2025.

This Booking.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/319:20 pmORD - CCU
2 stops32h 00mIndiGo
Mon 12/1510:30 pmCCU - ORD
2 stops31h 25mIndiGo
Deal found 9/15$904
This oojo deal was found by Cheapflights users on 9/16. 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 9/278:34 amORD - CCU
2 stops48h 11mAir India
Tue 10/289:20 pmCCU - ORD
2 stops25h 40mAir India
Deal found 9/16$912
This oojo deal was found by Cheapflights users on 9/17. 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 9/278:34 amORD - CCU
2 stops50h 31mAir India
Sat 11/88:30 pmCCU - ORD
2 stops26h 30mAir India
Deal found 9/17$916
This oojo deal was found by Cheapflights users on 9/17. 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.
Wed 10/151:35 pmORD - CCU
2 stops40h 45mAir India
Tue 10/2811:35 amCCU - ORD
3 stops35h 25mAir India
Deal found 9/17$918
This oojo deal was found by Cheapflights users on 9/15. 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 9/278:34 amORD - CCU
2 stops50h 31mAir India
Sun 10/58:30 pmCCU - ORD
1 stop23h 20mAir India
Deal found 9/15$919
This Gotogate deal was found by Cheapflights users on 9/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:20 pmORD - CCU
2 stops33h 45mMultiple Airlines
Thu 11/65:00 amCCU - ORD
3 stops42h 00mMultiple Airlines
Deal found 9/15$920
This Etihad Airways deal was found by Cheapflights users on 9/16. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:55 pmORD - CCU
1 stop26h 35mEtihad Airways
Tue 10/74:00 amCCU - ORD
1 stop39h 15mEtihad Airways
Deal found 9/16$922
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Sun 10/191:10 pmORD - CCU
1 stop42h 25mAir India
Mon 10/2712:55 amCCU - ORD
2 stops46h 05mAir India
Deal found 9/14$925
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:10 pmORD - CCU
1 stop26h 00mEtihad Airways
Sat 12/133:35 amCCU - ORD
1 stop39h 50mEtihad Airways
Deal found 9/14$926
This oojo deal was found by Cheapflights users on 9/16. 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 9/278:34 amORD - CCU
2 stops48h 11mAir India
Sat 11/18:30 pmCCU - ORD
2 stops26h 30mAir India
Deal found 9/16$927
This Indian Eagle deal was found by Cheapflights users on 9/15. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/21:10 pmORD - CCU
1 stop19h 20mEtihad Airways
Tue 11/258:55 pmCCU - ORD
1 stop22h 30mEtihad Airways
Deal found 9/15$930
This FlightHub deal was found by Cheapflights users on 9/16. 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.
Tue 9/235:28 amSTL - CCU
2 stops34h 22mQatar Airways
Mon 12/13:25 amCCU - STL
2 stops30h 32mQatar Airways
Deal found 9/16$1,042

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 17, 2025.
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

Mon 11/10

1:10 pm-8:00 pm

1 stop19h 20m

Kolkata Netaji S. Chandra

Sat 11/22

3:35 am-7:55 am

1 stop39h 50m

$922

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sun 11/9

6:00 am-1:55 am

2 stops32h 25m

Kolkata Netaji S. Chandra

Sat 11/22

3:25 am-2:30 pm

1 stop22h 35m

$1,119

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 9/23

10:47 am-2:20 am

2 stops29h 03m

Kolkata Netaji S. Chandra

Mon 10/6

3:50 am-5:00 pm

2 stops47h 40m

$1,273

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Mon 12/8

1:10 pm-2:40 am

1 stop26h 00m

Kolkata Netaji S. Chandra

Fri 1/9

8:55 pm-7:55 am

1 stop22h 30m

$1,282

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Mon 9/22

8:33 pm-2:20 am

2 stops43h 17m

Kolkata Netaji S. Chandra

Sat 10/4

3:50 am-2:50 pm

1 stop21h 30m

$1,286

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sun 11/9

6:50 pm-9:00 am

2 stops50h 40m

Kolkata Netaji S. Chandra

Tue 11/25

9:20 pm-12:10 pm

3 stops26h 20m

$1,314

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 9/23

10:47 am-2:20 am

2 stops29h 03m

Kolkata Netaji S. Chandra

Mon 10/13

3:50 am-12:40 pm

2 stops43h 20m

$1,338

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 9/23

10:47 am-2:20 am

2 stops29h 03m

Kolkata Netaji S. Chandra

Fri 10/10

3:50 am-6:24 am

2 stops37h 04m

$1,359

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Fri 9/26

8:33 pm-2:20 am

2 stops43h 17m

Kolkata Netaji S. Chandra

Thu 10/9

3:50 am-5:00 pm

2 stops47h 40m

$1,360

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Thu 9/25

8:33 pm-2:20 am

2 stops43h 17m

Kolkata Netaji S. Chandra

Tue 10/7

3:50 am-9:23 pm

2 stops28h 03m

$1,373

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 26 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 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 Illinois to Kolkata

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Kolkata (average of $977). Flying from Illinois to Kolkata in December is currently the most expensive (average of $1,647). 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 IL to CCU?

Find hourly flight availability from Illinois to Kolkata. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Kolkata as you normally would.

How much does it cost to fly round-trip 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 8.3 mi from the center of the city.

  • How long is the flight from Illinois to Kolkata?

    For as low as $922, Etihad Airways can have you in Kolkata from Illinois in 19h 20m. Airlines will cover a distance of 7959 mi. 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 vacation 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, September is the cheapest month in which you can book a flight from Illinois to Kolkata (average of $977). Flying from Illinois to Kolkata in December is currently the most expensive (average of $1,647). 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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Top 7 airlines flying from Illinois to Kolkata

Discover the top 7 airlines that operate flights from Illinois to Kolkata. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$735Average$1,029FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$798Average$1,091FlexibilityNo cancel feeOn-time75%
SWISSCheapest$814Average$1,281FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$817Average$1,096FlexibilityNo cancel feeOn-time76%
EmiratesCheapest$823Average$1,074FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$886Average$1,271FlexibilityNo cancel feeOn-time68%
IndiGoCheapest$1,015Average$1,374FlexibilityNo cancel feeOn-time80%

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