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Cheap flights from Illinois to Kolkata from ₹ 41,930

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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CCU
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Kolkata

Enter your travel dates to find the best prices.

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 27 July 2026.

Mon 7/921:10
ORD
-
CCU
1 stop36h 50m
Etihad Airways
Mon 14/921:30
CCU
-
ORD
1 stop21h 35m
Etihad Airways
Deal found 24/7₹ 77,692
Fri 4/914:00
ORD
-
CCU
1 stop26h 25m
Etihad Airways
Fri 25/903:50
CCU
-
ORD
1 stop39h 15m
Etihad Airways
Deal found 23/7₹ 80,584
Tue 8/914:00
ORD
-
CCU
1 stop20h 00m
Etihad Airways
Mon 14/903:50
CCU
-
ORD
1 stop39h 15m
Etihad Airways
Deal found 24/7₹ 80,969
Sun 6/921:10
ORD
-
CCU
1 stop19h 15m
Etihad Airways
Sun 13/921:30
CCU
-
ORD
1 stop21h 35m
Etihad Airways
Deal found 23/7₹ 81,355
Sat 5/914:00
ORD
-
CCU
1 stop20h 00m
Etihad Airways
Sat 26/903:50
CCU
-
ORD
1 stop39h 15m
Etihad Airways
Deal found 24/7₹ 81,548
Sun 18/1014:00
ORD
-
CCU
1 stop20h 00m
Etihad Airways
Mon 2/1103:20
CCU
-
ORD
1 stop23h 10m
Etihad Airways
Deal found 24/7₹ 82,319
Wed 2/921:10
ORD
-
CCU
1 stop19h 15m
Etihad Airways
Fri 25/921:30
CCU
-
ORD
1 stop21h 35m
Etihad Airways
Deal found 23/7₹ 82,511
Sat 5/921:10
ORD
-
CCU
1 stop36h 50m
Etihad Airways
Fri 25/903:50
CCU
-
ORD
1 stop39h 15m
Etihad Airways
Deal found 23/7₹ 82,897
Wed 14/1005:00
STL
-
CCU
2 stops35h 25m
Multiple Airlines
Sat 24/1003:20
CCU
-
STL
2 stops31h 08m
Multiple Airlines
Deal found 22/7₹ 112,104
Wed 14/1013:29
STL
-
CCU
3 stops47h 21m
Multiple Airlines
Fri 23/1008:30
CCU
-
STL
2 stops37h 33m
Multiple Airlines
Deal found 22/7₹ 166,372
Wed 14/1013:09
STL
-
CCU
3 stops48h 41m
Multiple Airlines
Sat 24/1021:00
CCU
-
STL
2 stops28h 15m
Multiple Airlines
Deal found 22/7₹ 170,421
Thu 15/1019:01
STL
-
CCU
3 stops51h 19m
Multiple Airlines
Sat 24/1020:55
CCU
-
STL
2 stops34h 48m
Multiple Airlines
Deal found 22/7₹ 188,832

Find flight deals from Illinois to Kolkata

Keep the following information in mind while searching for Illinois to Kolkata flight deals. Data was last updated 27 July 2026.

Round-trip from

₹ 77,692

One-way from

₹ 41,930

Popular in

May

Cheapest in

February

Average price

₹ 93,886
Etihad Airways
  • Etihad Airways
  • 7/9-14/9
  • 2 total stops
  • 58h 25m total
  • Illinois to Kolkata
Search Deals
8/8
  • 8/8
  • 2 total stops
  • 25h 15m total
  • Illinois to Kolkata
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (₹ 3,771,438 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (₹ 788,378 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 454,620 searches. Data last updated 27 July 2026.
Use the filters below to find and compare flights from Illinois to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 8/9

14:00-20:30

1 stop20h 00m

Kolkata Netaji S. Chandra

Mon 14/9

03:50-15:40

1 stop22h 20m

₹ 83,572
Fastest return journey

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Wed 9/9

21:10-02:55

1 stop19h 15m

Kolkata Netaji S. Chandra

Wed 16/9

21:30-08:35

1 stop21h 35m

₹ 83,957

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Wed 23/9

19:20-02:30

1 stop20h 40m

Kolkata Netaji S. Chandra

Sun 27/9

04:00-15:05

1 stop21h 35m

₹ 97,259

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Wed 9/9

06:00-02:30

2 stops34h 00m

Kolkata Netaji S. Chandra

Wed 16/9

04:00-23:59

2 stops30h 29m

₹ 106,706

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Thu 20/8

20:35-19:15

1 stop36h 10m

Kolkata Netaji S. Chandra

Wed 26/8

01:30-15:45

1 stop24h 45m

₹ 112,971

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Tue 13/10

20:10-12:30

2 stops29h 50m

Kolkata Netaji S. Chandra

Wed 21/10

22:30-09:40

2 stops45h 40m

₹ 115,092

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Wed 23/9

11:25-10:45

2 stops36h 50m

Kolkata Netaji S. Chandra

Sun 27/9

21:40-09:40

2 stops46h 30m

₹ 119,237

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Mon 12/10

11:25-15:30

2 stops41h 35m

Kolkata Netaji S. Chandra

Wed 21/10

22:30-09:40

2 stops45h 40m

₹ 121,068

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Thu 10/9

20:10-12:55

2 stops30h 15m

Kolkata Netaji S. Chandra

Mon 29/3

18:45-09:40

2 stops49h 25m

₹ 127,237

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Fri 4/9

16:30-04:50

3 stops25h 50m

Kolkata Netaji S. Chandra

Fri 18/9

21:00-12:00

3 stops25h 30m

₹ 172,831

Flights are sorted by cheapest return flights first.

Deals found on 23/7

Showing 1-10 of 21 resultsSorted by cheapest first
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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 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 Illinois to Kolkata

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

Currently, February is the cheapest month in which you can book a flight from Illinois to Kolkata (average of ₹ 91,572). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 187,771). 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 Illinois to Kolkata?

Airfare is typical for this route at the moment.
Illinois to Kolkata flights typically cost between ₹ 69,209 and ₹ 97,452 in September.
The cheapest return price found within the last 5 days was ₹ 77,692 on Etihad Airways (7 Sept–14 Sept).

How far ahead should I book a flight from Illinois to Kolkata?

The best time to book flights from Illinois to Kolkata is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 13.4 km from the centre of the city.

  • How long is the flight from Illinois to Kolkata?

    For as low as ₹ 83,572, Etihad Airways can have you in Kolkata from Illinois in 20h. The distance from Illinois to Kolkata is about 12809 km. 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 holiday 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, February is the cheapest month in which you can book a flight from Illinois to Kolkata (average of ₹ 91,572). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 187,771). 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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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 Illinois to Kolkata?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois to Kolkata. 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 Illinois to Kolkata?

Millions of users choose and trust Cheapflights to book the best flight deals from Illinois to Kolkata for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Illinois to Kolkata with no change fees?

Yes! Cheapflights helps users easily find flights from Illinois to Kolkata with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Kolkata become cheaper?

Yes, Cheapflights offers price alerts on Illinois to Kolkata 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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