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$498+ Cheap flights from St. Louis (STL) 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CCU
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from St. Louis to Kolkata

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Kolkata (CCU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,687
(Priceline)

One-way from

$498
(FlightHub)

Popular in

July

Cheapest in

October

Average price

$1,212
Provider with most accurate pricing for Lambert-St Louis-Kolkata Netaji S. Chandra flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Kolkata Netaji S. Chandra flights.
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From Lambert-St Louis to Kolkata Netaji S. Chandra
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One-way flight from Lambert-St Louis to Kolkata Netaji S. Chandra
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Highest demand for flights based on searches. 26% potential increase in price ($504 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from St. Louis to Kolkata

Cheapest flights from St. Louis to Kolkata
Explore the most affordable flight options available from St. Louis to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This Priceline deal was found by Cheapflights users on 4/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/177:30 amSTL - CCU
2 stops39h 45mMultiple Airlines
Sat 6/76:25 amCCU - STL
2 stops41h 35mMultiple Airlines
Deal found 4/28$1,687
This FlightHub deal was found by Cheapflights users on 4/28. 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.
Sat 5/176:20 amSTL - CCU
2 stops33h 30mQatar Airways
Fri 6/63:50 amCCU - STL
2 stops27h 34mQatar Airways
Deal found 4/28$1,875

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis 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 April 30, 2025.
Use the filters below to find and compare flights from St. Louis to Kolkata that are best for you.

Fly from

St. Louis

Fly to

Kolkata

Route

Depart

Return

Price

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Sat 5/17

7:30 am-9:45 am

2 stops39h 45m

Kolkata Netaji S. Chandra

Sat 6/7

6:25 am-1:30 pm

2 stops41h 35m

$1,687

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Sat 5/17

6:20 am-2:20 am

2 stops33h 30m

Kolkata Netaji S. Chandra

Fri 6/6

3:50 am-8:54 pm

2 stops27h 34m

$1,875

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Fri 5/2

5:35 am-2:20 am

2 stops34h 15m

$498

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Fri 5/2

1:00 pm-4:15 am

3 stops52h 45m

$690

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Fri 7/11

1:20 pm-9:00 am

3 stops33h 10m

$746

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Thu 6/12

11:17 am-9:20 am

3 stops35h 33m

$1,313

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Compare providers for flights from St. Louis to Kolkata

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Kolkata in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Kolkata flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Kolkata flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Kolkata flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Kolkata flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Kolkata flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata from St. Louis 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 St. Louis to Kolkata

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

Find hourly flight availability from St. Louis 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 April 30, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Kolkata in the morning. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight at noon.

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 April 30, 2025.
KLM
7.8
Good
1,334 reviews

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,334 reviews
KLM
7.8
Good
1,334 reviews

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Qatar Airways
7.4
Good
3,563 reviews
KLM
7.8
Good
1,334 reviews

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Lufthansa
6.7
Okay
7,044 reviews
KLM
7.8
Good
1,334 reviews

Entertainment

7.1

Comfort

7.7

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Kolkata. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from St. Louis to Kolkata round-trip?

    Flying on Qatar Airways is currently your cheapest option to Kolkata, with prices starting at $1,875.

  • What are the cheapest airlines to fly from St. Louis to Kolkata one-way?

    The cheapest airlines for a one-way flight from St. Louis to Kolkata are Qatar Airways ($498), Lufthansa ($746), and KLM ($1,313).

  • Can I find deals for flights from St. Louis to Kolkata that include hotel bookings?

    Yes. In addition to deals on St. Louis to Kolkata flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Kolkata?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Kolkata.

  • Can I find deals for business class flights from St. Louis to Kolkata?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Kolkata?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Kolkata (average of $978). Flying from St. Louis 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 St. Louis to Kolkata

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Kolkata flights
Columbia to Kolkata flights

Top airline flying from St. Louis to Kolkata

Discover the top airline that operate flights from St. Louis 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,130Average$1,269FlexibilityNo cancel feeOn-time68%

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