How long is the flight from Illinois to Kolkata?

For as low as ₹ 101,269, Etihad Airways can have you in Kolkata from Illinois in 29h 03m. The distance from Illinois to Kolkata is about 13177 km. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Kolkata ranges from 7.0 - 356.0 inches per month. August is typically the wettest month, when rainfall can reach 356.0 mm. December is typically the driest time to visit Kolkata when rainfall is around 7.0 mm.

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 31.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).

What is the cheapest time of day to fly from IL to CCU?

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.

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.

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.

₹ 39,611+ Cheap Flights from Illinois to Kolkata

Cheap flight deals from Illinois to Kolkata

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 11 September 2026.

Thu 24/920:25 -

1 stop20h 00m

Fri 9/1021:30 -

1 stop21h 35m

Deal found 8/9₹ 79,221

Tue 15/914:00 -

1 stop20h 00m

Wed 23/921:30 -

1 stop21h 35m

Deal found 8/9₹ 80,176

Sun 13/920:25 -

1 stop20h 00m

Mon 21/921:30 -

1 stop21h 35m

Deal found 5/9₹ 81,798

Mon 14/920:25 -

1 stop37h 35m

Mon 21/903:50 -

1 stop39h 15m

Deal found 6/9₹ 82,657

Sun 27/920:25 -

1 stop20h 00m

Fri 9/1021:30 -

1 stop21h 35m

Deal found 6/9₹ 82,753

Thu 24/920:25 -

1 stop20h 00m

Sat 17/1003:50 -

1 stop39h 15m

Deal found 8/9₹ 83,039

Tue 22/914:00 -

1 stop20h 00m

Wed 7/1021:30 -

1 stop21h 35m

Deal found 6/9₹ 83,612

Tue 29/914:00 -

1 stop20h 00m

Wed 7/1021:30 -

1 stop21h 35m

Deal found 6/9₹ 83,707

Sat 10/1014:00 -

1 stop20h 00m

Wed 28/1021:00 -

1 stop22h 25m

Deal found 8/9₹ 83,994

Tue 15/920:35 -

1 stop25h 05m

Tue 22/909:50 -

1 stop40h 35m

Deal found 10/9₹ 84,184

Fri 16/1020:25 -

1 stop37h 35m

Mon 26/1003:20 -

1 stop40h 05m

Deal found 8/9₹ 84,566

Tue 29/914:00 -

1 stop20h 00m

Mon 12/1003:50 -

1 stop22h 20m

Deal found 6/9₹ 84,662

Best flights from Illinois to Kolkata
Discover carefully curated flight deals from Illinois to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Fri 12/207:29 -

2 stops31h 26m

Fri 12/321:00 -

2 stops32h 37m

Deal found 8/9₹ 98,406

Wed 3/209:52 -

2 stops29h 03m

Sat 27/203:20 -

2 stops50h 18m

Deal found 7/9₹ 101,269

Sun 4/1006:30 -

2 stops33h 10m

Wed 9/1203:25 -

2 stops26h 22m

Deal found 8/9₹ 106,042

Sat 21/1120:15 -

2 stops31h 35m

Sun 6/1218:45 -

2 stops50h 45m

Deal found 6/9₹ 113,582

Sun 4/1013:09 -

3 stops33h 11m

Thu 10/1220:55 -

2 stops28h 20m

Deal found 10/9₹ 171,423

Sun 18/1011:31 -

2 stops28h 09m

Thu 29/1003:25 -

2 stops31h 24m

Deal found 9/9₹ 106,328

Sun 4/1011:01 -

2 stops29h 24m

Thu 10/1203:20 -

2 stops45h 28m

Deal found 8/9₹ 106,614

Sun 4/1007:27 -

2 stops32h 13m

Thu 10/1203:25 -

2 stops44h 42m

Deal found 6/9₹ 107,760

Sun 6/1220:15 -

2 stops53h 05m

Fri 18/1222:30 -

2 stops47h 00m

Deal found 6/9₹ 125,418

Tue 15/1211:45 -

2 stops37h 25m

Sun 17/119:05 -

2 stops34h 45m

Deal found 6/9₹ 164,646

Fri 20/1121:35 -

3 stops46h 35m

Fri 1/120:55 -

3 stops28h 40m

Deal found 10/9₹ 337,692

Tue 15/1211:45 -

2 stops37h 35m

Sun 17/121:30 -

2 stops48h 00m

Deal found 9/9₹ 169,323

Wed 3/209:52 -

3 stops34h 18m

Sun 28/220:15 -

3 stops31h 58m

Deal found 7/9₹ 171,423

Fri 25/1210:00 -

2 stops28h 25m

Sun 10/103:25 -

2 stops26h 34m

Deal found 10/9₹ 167,223

Sun 15/1121:50 -

2 stops30h 25m

Tue 1/1222:30 -

2 stops31h 45m

Deal found 6/9₹ 436,957

Sun 3/119:45 -

1 stop24h 25m

Fri 26/220:25 -

1 stop30h 00m

Deal found 9/9₹ 489,739

Sat 21/1106:00 -

2 stops32h 25m

Fri 1/103:25 -

2 stops28h 08m

Deal found 10/9₹ 229,264

Wed 4/1113:50 -

3 stops45h 05m

Tue 1/1223:20 -

2 stops45h 40m

Deal found 7/9₹ 286,532

Sun 22/1121:50 -

2 stops25h 20m

Wed 2/1220:15 -

2 stops34h 00m

Deal found 8/9₹ 436,957

Mon 16/1121:50 -

2 stops25h 20m

Tue 24/1120:15 -

2 stops29h 00m

Deal found 7/9₹ 484,681

Find flight deals from Illinois to Kolkata

Round-trip from	₹ 79,221
One-way from	₹ 39,611
Popular in	May
Cheapest in	February
Average price	₹ 101,079

Etihad Airways
24/9-9/10
2 total stops
41h 35m total
Illinois to Kolkata

Search Deals

Etihad Airways
16/9-31/12
1 total stop
37h 55m total
Illinois to Kolkata

Search Deals

Highest demand for flights based on searches. 22% potential increase in price (₹ 3,282,654 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (₹ 735,195 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoKolkata

ORD Chicago O'Hare Intl - CCU Kolkata Netaji S. Chandra

ORDCCU

Chicago O'Hare Intl

Thu 8/10

11:10-22:20

2 stops48h 40m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 49,823

ChicagoKolkata

ORD Chicago O'Hare Intl - CCU Kolkata Netaji S. Chandra

ORDCCU

Chicago O'Hare Intl

Thu 1/10

17:10-08:15

2 stops28h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 56,600

ChicagoKolkata

ORD Chicago O'Hare Intl - CCU Kolkata Netaji S. Chandra

ORDCCU

Chicago O'Hare Intl

Fri 25/9

12:59-02:55

2 stops27h 26m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 58,223

ChicagoKolkata

ORD Chicago O'Hare Intl - CCU Kolkata Netaji S. Chandra

ORDCCU

Chicago O'Hare Intl

Wed 25/11

11:45-12:50

2 stops37h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 59,082

ChicagoKolkata

ORD Chicago O'Hare Intl - CCU Kolkata Netaji S. Chandra

ORDCCU

Chicago O'Hare Intl

Thu 22/10

20:25-13:25

3 stops30h 30m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 59,273

ChicagoKolkata

ORD Chicago O'Hare Intl - CCU Kolkata Netaji S. Chandra

ORDCCU

Chicago O'Hare Intl

Fri 27/11

20:15-12:50

2 stops29h 05m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 61,945

ChicagoKolkata

ORD Chicago O'Hare Intl - CCU Kolkata Netaji S. Chandra

ORDCCU

Chicago O'Hare Intl

Sun 22/11

11:45-15:20

2 stops40h 05m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 61,945

St. LouisKolkata

STL Lambert-St Louis - CCU Kolkata Netaji S. Chandra

STLCCU

Lambert-St Louis

Sun 1/11

11:34-01:55

2 stops26h 51m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 65,381

ChicagoKolkata

ORD Chicago O'Hare Intl - CCU Kolkata Netaji S. Chandra

ORDCCU

Chicago O'Hare Intl

Sun 25/10

21:15-15:55

3 stops32h 10m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 66,240

ChicagoKolkata

ORD Chicago O'Hare Intl - CCU Kolkata Netaji S. Chandra

ORDCCU

Chicago O'Hare Intl

Wed 30/12

12:30-01:55

2 stops25h 55m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 66,813

Flights are sorted by cheapest return flights first.

Deals found on 8/9

Showing 1-10 of 35 resultsSorted by cheapest first

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.

STL-CCU

ORD-CCU

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

USIL-CCU

STL-CCU

ORD-CCU

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 ₹ 90,675). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 186,408). 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 below average for this route at the moment.

Illinois to Kolkata flights typically cost between ₹ 95,829 and ₹ 138,494 in September.
The cheapest return price found within the last 5 days was ₹ 79,221 on Etihad Airways (24 Sept–9 Oct).

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

The best time to book flights from Illinois to Kolkata is 53 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

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 ₹ 101,269, Etihad Airways can have you in Kolkata from Illinois in 29h 03m. The distance from Illinois to Kolkata is about 13177 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 ₹ 90,675). Flying from Illinois to Kolkata in December is currently the most expensive (average of ₹ 186,408). 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

Alternative routes

Complete your trip

Direct flights to West Bengal

Flights by cabin class

Kolkata flight routes

Other flight options

Popular flights

Alternative routes for Illinois to Kolkata

John F Kennedy Intl to Kolkata flights

Newark to Kolkata flights

San Francisco to Kolkata flights

Dulles Intl to Kolkata flights

Dallas/Fort Worth to Kolkata flights

San Jose to Kolkata flights

O'Hare Intl to Kolkata flights

LaGuardia to Kolkata flights

Charlotte to Kolkata flights

Los Angeles to Kolkata flights

Baltimore to Kolkata flights

Reagan-National to Kolkata flights

Boston to Kolkata flights

Oakland to Kolkata flights

Hobby to Kolkata flights

George Bush Intcntl to Kolkata flights

Raleigh to Kolkata flights

John F Kennedy Intl to Bagdogra flights

Atlanta to Kolkata flights

Newark to Bagdogra flights

Seattle to Kolkata flights

Columbus to Kolkata flights

Tampa to Kolkata flights

Burbank to Kolkata flights

Philadelphia to Kolkata flights

Orlando to Kolkata flights

Buffalo to Kolkata flights

Miami to Kolkata flights

Detroit to Kolkata flights

San Diego to Kolkata flights

Sky Harbor Intl to Kolkata flights

Salt Lake City to Kolkata flights

St. Louis to Kolkata flights

New Orleans to Kolkata flights

Fort Lauderdale to Kolkata flights

Ontario to Kolkata flights

Denver to Kolkata flights

Austin to Kolkata flights

Cleveland to Kolkata flights

Kansas City to Kolkata flights

Syracuse to Kolkata flights

Minneapolis to Kolkata flights

Baltimore to Bagdogra flights

Boston to Bagdogra flights

Richmond to Kolkata flights

Portland to Kolkata flights

Dulles Intl to Bagdogra flights

Pittsburgh to Kolkata flights

Long Beach to Kolkata flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Illinois to Kolkata from ₹ 39,611

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Kolkata

Cheapest flights from Illinois to KolkataExplore 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 11 September 2026.

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 11 September 2026.

Best flights from Illinois to KolkataDiscover carefully curated flight deals from Illinois to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Discover carefully curated flight deals from Illinois to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Last-minute flights from Illinois to KolkataDiscover last-minute flight deals from Illinois to Kolkata. Data last updated 11 September 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Kolkata. Data last updated 11 September 2026 and is based on user searches.

One-way flights from Illinois to KolkataSearch for one-way flight options from Illinois to Kolkata. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Search for one-way flight options from Illinois to Kolkata. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Find flight deals from Illinois to Kolkata

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Kolkata that are best for you.

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.

Cheapflights Insights

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

How much does it cost for a return flight from Illinois to Kolkata?

Airfare is below average for this route at the moment.

Illinois to Kolkata flights typically cost between ₹ 95,829 and ₹ 138,494 in September.The cheapest return price found within the last 5 days was ₹ 79,221 on Etihad Airways (24 Sept–9 Oct).

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

The best time to book flights from Illinois to Kolkata is 53 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

What airport do you fly into for flights to Kolkata from Illinois?

How long is the flight from Illinois to Kolkata?

Can I find deals for flights from Illinois to Kolkata that include hotel bookings?

How can I find direct flights from Illinois to Kolkata?

Can I find deals for business class flights from Illinois to Kolkata?

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

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.

Alternative routes for Illinois to Kolkata

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Kolkata by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to West Bengal

Book a non-stop flight to one of these other cities located in West Bengal.

Search flights from Illinois to Kolkata by cabin class

Find flights from Illinois to Kolkata, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Kolkata

Explore flights to Kolkata departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 11 September 2026.

Illinois and Kolkata flights

Browse other Illinois and Kolkata flight options. Last updated on 11 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Illinois to Kolkata?

Why should you use Cheapflights to find cheap flight tickets from Illinois to Kolkata?

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

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

100% Free

Book With Flexibility

Travel Smart

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 11 September 2026.

Best flights from Illinois to Kolkata
Discover carefully curated flight deals from Illinois to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Last-minute flights from Illinois to Kolkata
Discover last-minute flight deals from Illinois to Kolkata. Data last updated 11 September 2026 and is based on user searches.

One-way flights from Illinois to Kolkata
Search for one-way flight options from Illinois to Kolkata. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Illinois to Kolkata flights typically cost between ₹ 95,829 and ₹ 138,494 in September.
The cheapest return price found within the last 5 days was ₹ 79,221 on Etihad Airways (24 Sept–9 Oct).