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Cheap flights from Illinois to Kolkata from ₹ 32,172

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CCU
11 Apr — 18 Apr1
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 12 March 2026.

Mon 3/813:10
ORD
-
CCU
1 stop20h 40m
Air India
Tue 18/816:10
CCU
-
ORD
2 stops29h 30m
Air India
Deal found 11/3₹ 67,378
Wed 8/413:10
ORD
-
CCU
1 stop20h 35m
Air India
Tue 21/422:00
CCU
-
ORD
2 stops23h 40m
Air India
Deal found 7/3₹ 73,169
Mon 6/413:10
ORD
-
CCU
1 stop21h 35m
Air India
Tue 28/408:30
CCU
-
ORD
2 stops37h 10m
Air India
Deal found 8/3₹ 75,559
Wed 8/413:10
ORD
-
CCU
1 stop21h 35m
Air India
Thu 23/421:00
CCU
-
ORD
2 stops24h 40m
Air India
Deal found 8/3₹ 75,835
Wed 8/413:10
ORD
-
CCU
1 stop20h 35m
Air India
Sun 19/410:30
CCU
-
ORD
2 stops35h 10m
Air India
Deal found 7/3₹ 77,122
Tue 1/906:00
ORD
-
CCU
2 stops24h 20m
Multiple Airlines
Tue 20/1022:00
CCU
-
ORD
2 stops23h 40m
Multiple Airlines
Deal found 9/3₹ 78,133
Mon 23/320:45
ORD
-
CCU
1 stop35h 35m
Emirates
Wed 15/420:55
CCU
-
ORD
1 stop29h 20m
Emirates
Deal found 9/3₹ 78,500
Sun 29/320:35
ORD
-
CCU
1 stop25h 05m
Emirates
Thu 9/409:50
CCU
-
ORD
1 stop40h 25m
Emirates
Deal found 9/3₹ 78,684
Fri 3/413:10
ORD
-
CCU
1 stop23h 35m
Air India
Tue 28/408:30
CCU
-
ORD
2 stops37h 10m
Air India
Deal found 9/3₹ 79,879
Wed 22/413:10
ORD
-
CCU
1 stop20h 35m
Air India
Sat 6/608:30
CCU
-
ORD
2 stops37h 10m
Air India
Deal found 7/3₹ 80,155
Wed 2/906:00
ORD
-
CCU
2 stops24h 20m
Multiple Airlines
Thu 22/1020:35
CCU
-
ORD
2 stops26h 15m
Multiple Airlines
Deal found 9/3₹ 80,523
Tue 24/317:51
STL
-
CCU
2 stops46h 19m
Etihad Airways
Tue 7/404:10
CCU
-
STL
2 stops43h 42m
Etihad Airways
Deal found 9/3₹ 86,038

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 12 March 2026.

Round-trip from

₹ 67,378

One-way from

₹ 32,172

Popular in

December

Cheapest in

February

Average price

₹ 84,659
Air India
  • Air India
  • 3/8-18/8
  • 3 total stops
  • 50h 10m total
  • Illinois to Kolkata
Search Deals
22/4
  • 22/4
  • 1 total stop
  • 32h 35m total
  • Illinois to Kolkata
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (₹ 1,858,817 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (₹ 556,496 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 12 March 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

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Sun 26/4

07:00-20:30

2 stops27h 00m

Kolkata Netaji S. Chandra

Sun 3/5

21:30-19:30

2 stops32h 30m

₹ 86,314

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sun 6/9

20:35-08:10

1 stop25h 05m

Kolkata Netaji S. Chandra

Thu 10/9

09:50-15:45

1 stop40h 25m

₹ 90,082

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Tue 5/5

05:51-20:30

2 stops28h 09m

Kolkata Netaji S. Chandra

Mon 11/5

21:30-16:41

2 stops29h 41m

₹ 90,174
Fastest return journey

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Sun 6/9

19:20-02:30

1 stop20h 40m

Kolkata Netaji S. Chandra

Thu 10/9

04:00-15:05

1 stop21h 35m

₹ 91,829

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Tue 21/4

12:27-02:30

2 stops27h 33m

Kolkata Netaji S. Chandra

Tue 28/4

04:00-22:19

2 stops28h 49m

₹ 92,013

ChicagoKolkata

ORD - CCU

ORDCCU

Chicago O'Hare Intl

Fri 1/5

16:20-09:05

2 stops30h 15m

Kolkata Netaji S. Chandra

Sat 16/5

19:00-14:15

2 stops29h 45m

₹ 97,344

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Wed 25/3

11:59-01:55

2 stops27h 26m

Kolkata Netaji S. Chandra

Tue 7/4

04:00-17:21

2 stops47h 51m

₹ 97,804

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Wed 25/3

11:22-01:55

2 stops28h 03m

Kolkata Netaji S. Chandra

Mon 6/4

04:00-17:21

2 stops47h 51m

₹ 97,804

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Thu 26/3

18:20-01:55

2 stops45h 05m

Kolkata Netaji S. Chandra

Mon 6/4

04:00-17:21

2 stops47h 51m

₹ 100,470

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Sat 25/4

12:27-02:30

2 stops27h 33m

Kolkata Netaji S. Chandra

Sat 2/5

04:00-22:53

2 stops29h 23m

₹ 100,837

Flights are sorted by cheapest return flights first.

Deals found on 7/3

Showing 1-10 of 40 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, August is the cheapest month in which you can book a flight from Illinois to Kolkata (average of ₹ 65,172). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 96,609). 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.

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 ₹ 91,829, Emirates can have you in Kolkata from Illinois in 20h 40m. 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, August is the cheapest month in which you can book a flight from Illinois to Kolkata (average of ₹ 65,172). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 96,609). 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

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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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