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$384+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CCU
Jun 28 — Jul 51
Sat 6/28
Sat 7/5
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 June 23, 2025.

Round-trip from

$1,029
(Mytrip)

One-way from

$392
(Indian Eagle)

Popular in

December

Cheapest in

March

Average price

$1,514
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 ($224 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($72 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 23, 2025.

This oojo deal was found by Cheapflights users on 6/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:00 pmORD - CCU
1 stop22h 00mAir India
Sat 10/411:00 amCCU - ORD
2 stops30h 55mAir India
Deal found 6/21$1,028
This Mytrip deal was found by Cheapflights users on 6/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:50 pmORD - CCU
2 stops31h 25mMultiple Airlines
Wed 10/229:20 amCCU - ORD
2 stops32h 35mMultiple Airlines
Deal found 6/20$1,029
This oojo deal was found by Cheapflights users on 6/22. 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 11/227:45 pmORD - CCU
1 stop24h 25mEmirates
Sat 12/69:10 amCCU - ORD
1 stop41h 15mEmirates
Deal found 6/22$1,035
This FlightHub deal was found by Cheapflights users on 6/22. 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.
Fri 9/197:20 pmORD - CCU
1 stop20h 30mQatar Airways
Sun 10/123:50 amCCU - ORD
2 stops37h 01mQatar Airways
Deal found 6/22$1,057
This Gurufare deal was found by Cheapflights users on 6/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/52:20 pmORD - CCU
2 stops32h 40mSWISS
Tue 8/128:30 pmCCU - ORD
2 stops26h 10mSWISS
Deal found 6/21$1,067
This Booking.com deal was found by Cheapflights users on 6/21. 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.
Sat 7/57:50 pmORD - CCU
2 stops37h 55mIndiGo
Sat 7/1910:15 pmCCU - ORD
2 stops30h 10mIndiGo
Deal found 6/21$1,082
This Indian Eagle deal was found by Cheapflights users on 6/23. 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.
Fri 8/151:55 pmORD - CCU
1 stop26h 35mEtihad Airways
Fri 8/224:00 amCCU - ORD
1 stop39h 15mEtihad Airways
Deal found 6/23$1,099
This American Airlines deal was found by Cheapflights users on 6/21. 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.
Sat 10/2512:54 pmORD - CCU
2 stops29h 11mAmerican Airlines
Sun 12/76:00 pmCCU - ORD
2 stops35h 12mAmerican Airlines
Deal found 6/21$1,116
This FlightHub deal was found by Cheapflights users on 6/23. 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.
Thu 8/147:50 pmORD - CCU
2 stops30h 35mTurkish Airlines
Tue 9/3010:30 pmCCU - ORD
2 stops45h 40mTurkish Airlines
Deal found 6/23$1,134
This Lufthansa deal was found by Cheapflights users on 6/23. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:00 pmORD - CCU
2 stops27h 10mLufthansa
Wed 8/208:30 pmCCU - ORD
2 stops32h 15mLufthansa
Deal found 6/23$1,165
This Qatar Airways deal was found by Cheapflights users on 6/22. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:28 amSTL - CCU
2 stops34h 22mQatar Airways
Tue 9/233:50 amCCU - STL
2 stops29h 30mQatar Airways
Deal found 6/22$1,204
This Emirates deal was found by Cheapflights users on 6/22. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/203:20 pmSTL - CCU
2 stops30h 20mEmirates
Wed 9/249:45 amCCU - STL
2 stops46h 44mEmirates
Deal found 6/22$1,616

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 June 23, 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

Thu 9/18

7:50 pm-1:45 pm

2 stops31h 25m

Kolkata Netaji S. Chandra

Wed 10/22

9:20 am-7:25 am

2 stops32h 35m

$1,029

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Thu 8/7

12:15 pm-9:50 pm

2 stops47h 05m

Kolkata Netaji S. Chandra

Thu 8/14

8:30 pm-10:15 am

2 stops24h 15m

$1,031

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Fri 9/19

7:20 pm-2:20 am

1 stop20h 30m

Kolkata Netaji S. Chandra

Sun 10/12

3:50 am-6:21 am

2 stops37h 01m

$1,057

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 8/5

2:20 pm-9:30 am

2 stops32h 40m

Kolkata Netaji S. Chandra

Tue 8/12

8:30 pm-12:10 pm

2 stops26h 10m

$1,067

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sat 7/5

7:50 pm-8:15 pm

2 stops37h 55m

Kolkata Netaji S. Chandra

Sat 7/19

10:15 pm-5:55 pm

2 stops30h 10m

$1,082

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Fri 8/15

1:55 pm-3:00 am

1 stop26h 35m

Kolkata Netaji S. Chandra

Fri 8/22

4:00 am-8:45 am

1 stop39h 15m

$1,099

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Thu 8/14

7:50 pm-12:55 pm

2 stops30h 35m

Kolkata Netaji S. Chandra

Tue 9/30

10:30 pm-9:40 am

2 stops45h 40m

$1,134

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Fri 9/19

4:54 pm-4:45 am

2 stops25h 21m

Kolkata Netaji S. Chandra

Mon 10/13

6:00 pm-4:14 pm

2 stops32h 44m

$1,151

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sat 8/16

6:00 pm-7:40 am

2 stops27h 10m

Kolkata Netaji S. Chandra

Wed 8/20

8:30 pm-6:15 pm

2 stops32h 15m

$1,165

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Sat 9/20

5:28 am-2:20 am

2 stops34h 22m

Kolkata Netaji S. Chandra

Tue 9/23

3:50 am-10:50 pm

2 stops29h 30m

$1,204

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/23

Showing 1-10 of 27 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 $967). 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 June 23, 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.

Rainfall in Kolkata by month

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

In terms of precipitation, rainfall in Kolkata ranges from 0.3 - 14.0 inches per month. August is typically the wettest month, when rainfall can reach 14.0 in. December is typically the driest time to visit Kolkata when rainfall is around 0.3 in.

Temperature in Kolkata by month

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

If weather is an important factor for your trip to Kolkata, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 87.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

Reviews of airlines servicing Kolkata

Get insights into the airlines that provide service to Kolkata. 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 Kolkata. Reviews last updated June 23, 2025.
See what other customers who have flown with Japan Airlines, Emirates and Singapore Airlines from Illinois to Kolkata have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,502 reviews

Food

7.7

Overall

8.3

Entertainment

7.8

Comfort

8.2

Crew

8.7

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Japan Airlines
8.3
Very good
1,502 reviews
Japan Airlines
8.3
Very good
1,502 reviews

Food

7.7

Overall

8.3

Entertainment

7.8

Comfort

8.2

Crew

8.7

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Emirates
8.1
Very good
3,273 reviews
Japan Airlines
8.3
Very good
1,502 reviews

Food

7.7

Overall

8.3

Entertainment

7.8

Comfort

8.2

Crew

8.7

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Singapore Airlines
8.1
Very good
1,315 reviews
Japan Airlines
8.3
Very good
1,502 reviews

Food

7.7

Overall

8.3

Entertainment

7.8

Comfort

8.2

Crew

8.7

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
KLM
7.8
Good
1,365 reviews
Japan Airlines
8.3
Very good
1,502 reviews

Food

7.7

Overall

8.3

Entertainment

7.8

Comfort

8.2

Crew

8.7

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Thai Airways
7.7
Good
336 reviews
Japan Airlines
8.3
Very good
1,502 reviews

Food

7.7

Overall

8.3

Entertainment

7.8

Comfort

8.2

Crew

8.7

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.

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.

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

    The cheapest airline one-way is Air India, with whom users have recently found tickets for as low as $392. However, be on the lookout for offers from IndiGo and American Airlines, as they are both options that can get you from Illinois to Kolkata for a low price.

  • 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 $967). 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 June 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$725Average$1,062FlexibilityNo cancel feeOn-time79%
Air IndiaCheapest$755Average$1,044FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$795Average$1,056FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$813Average$1,005FlexibilityNo cancel feeOn-time76%
EmiratesCheapest$823Average$1,016FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$856Average$1,274FlexibilityNo cancel feeOn-time68%
IndiGoCheapest$959Average$1,572FlexibilityNo cancel feeOn-time80%

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