$596 Cheap Flights from St. Louis (STL) to Kolkata (CCU)

View $596 flight on Fri, Oct 24, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU)

Cheap Flights from St. Louis to Kolkata (STL-CCU)

Prices were available within the past 7 days and start at $596 for one-way flights and $1,065 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Oct 7 - Mon, Oct 20
STL
St. Louis
CCU
Kolkata
$1,065 Roundtrip, found 2 days ago
$1,065
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Oct 7 from St. Louis to Kolkata, returning Mon, Oct 20, priced at $1,065 found 2 days ago
American Airlines
Tue, Oct 28 - Tue, Nov 11
STL
St. Louis
CCU
Kolkata
$1,075 Roundtrip, found 2 days ago
$1,075
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Oct 28 from St. Louis to Kolkata, returning Tue, Nov 11, priced at $1,075 found 2 days ago
Qatar Airways
Tue, Oct 7 - Mon, Oct 20
STL
St. Louis
CCU
Kolkata
$1,076 Roundtrip, found 2 days ago
$1,076
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Tue, Oct 7 from St. Louis to Kolkata, returning Mon, Oct 20, priced at $1,076 found 2 days ago
American Airlines
Mon, Oct 6 - Wed, Oct 22
STL
St. Louis
CCU
Kolkata
$1,081 Roundtrip, found 2 days ago
$1,081
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Oct 6 from St. Louis to Kolkata, returning Wed, Oct 22, priced at $1,081 found 2 days ago
American Airlines
Tue, Oct 7 - Mon, Oct 20
STL
St. Louis
CCU
Kolkata
$1,082 Roundtrip, found 2 days ago
$1,082
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Oct 7 from St. Louis to Kolkata, returning Mon, Oct 20, priced at $1,082 found 2 days ago
American Airlines
Tue, Oct 28 - Fri, Nov 14
STL
St. Louis
CCU
Kolkata
$1,083 Roundtrip, found 2 days ago
$1,083
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Oct 28 from St. Louis to Kolkata, returning Fri, Nov 14, priced at $1,083 found 2 days ago
Qatar Airways
Wed, Feb 4 - Wed, Mar 25
STL
St. Louis
CCU
Kolkata
$1,084 Roundtrip, found 2 days ago
$1,084
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Wed, Feb 4 from St. Louis to Kolkata, returning Wed, Mar 25, priced at $1,084 found 2 days ago
Qatar Airways
Tue, Jan 27 - Tue, Feb 3
STL
St. Louis
CCU
Kolkata
$1,084 Roundtrip, found 5 days ago
$1,084
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Tue, Jan 27 from St. Louis to Kolkata, returning Tue, Feb 3, priced at $1,084 found 5 days ago
American Airlines
Tue, Oct 14 - Sun, Oct 26
STL
St. Louis
CCU
Kolkata
$1,085 Roundtrip, found 2 days ago
$1,085
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Oct 14 from St. Louis to Kolkata, returning Sun, Oct 26, priced at $1,085 found 2 days ago
Lufthansa
Sun, Dec 14 - Sat, Jan 17
STL
St. Louis
CCU
Kolkata
$2,726 Roundtrip, found 2 days ago
$2,726
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sun, Dec 14 from St. Louis to Kolkata, returning Sat, Jan 17, priced at $2,726 found 2 days ago

Alternative airports near Kolkata

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Netaji Subhash Chandra Bose Intl. CCU. Cheapest and Closest option available. Average driving time to city center is 15 minutes. Flights from $1,266
CCU
Netaji Subhash Chandra Bose Intl.
CheapestClosest
Average driving time to city center15 min
Flights from $1,266

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU) cost?
Get a cheap one-way flight from $596 or cheap return flight from $1,065 from Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU)?
Planning your trip for October is a good way to save, as it's the cheapest month for flights between STL and CCU. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU)?
To find the cheapest airline flying from STL to CCU, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU)?
There are no daily nonstop flights departing from Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from STL to CCU?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU) route, aim to travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU) last-minute?
Last-minute fares from STL to CCU are usually more expensive. To secure the lowest prices, start looking for flights ahead of time. That being said, if you're flexible with your travel dates, it's possible to find a cheap fare right before your trip.
Is it cheaper to book a STL to CCU flight and hotel package?
You can save money by booking a STL to CCU flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your preferred accommodations and flights, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Netaji Subhash Chandra Bose Intl. Airport (CCU)?
Typically, it's possible to reschedule or cancel your STL to CCU flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Netaji Subhash Chandra Bose Intl.
Airlines serving
Qatar Airways
Roundtrip price
$1,065
Distance
8194 mi

Book with confidence

Book with confidence

St. Louis to Kolkata Flights

The cheapest times to fly from St. Louis to Kolkata

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Kolkata are during the month of October. You can find some of the cheapest flights from St. Louis to Kolkata with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Kolkata

Sunday is one of the best days to book for cheap flights from St. Louis to Kolkata: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Kolkata

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Kolkata in 2025. You can also book with separate airlines for your outbound and return journeys, from $596 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Kolkata flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Kolkata airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Kolkata Flights

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*Available to One Key members.