STL - CCU

$1,137 Find Cheap Flights from St. Louis to Kolkata

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Kolkata departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Kolkata

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Kolkata, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Kolkata, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,137
Typical prices: $1,204-$1,176
Qatar Airways
do 9/24ma 9/28
STL - CCU • 2 stops
Top airlines
Cheapest • from $1,137 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Kolkata. You'll need at least 2 connections.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Kolkata!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Kolkata that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Kolkata

do, sep. 24 - ma, sep. 28
Qatar Airways Logo
10:14 am - 2:30 am
STL
-
CCU
29h 46m
2 stops
Qatar Airways Logo
4:00 am - 11:41 pm
CCU
-
STL
30h 11m
2 stops
$1,137Qatar Airways
ma, jun. 22 - vr, jul. 31
Qatar Airways Logo
9:08 am - 2:30 am
STL
-
CCU
30h 52m
2 stops
Qatar Airways Logo
4:00 am - 7:21 pm
CCU
-
STL
25h 51m
2 stops
$1,457Qatar Airways
ma, jun. 22 - vr, jul. 31
Multiple Airlines Logo
1:13 pm - 4:50 am
STL
-
CCU
29h 07m
3 stops
Multiple Airlines Logo
9:55 am - 2:02 pm
CCU
-
STL
38h 37m
2 stops
$1,987Multiple Airlines
ma, jun. 22 - vr, jul. 31
Lufthansa Logo
8:35 am - 4:50 am
STL
-
CCU
33h 45m
3 stops
Lufthansa Logo
10:00 pm - 3:46 pm
CCU
-
STL
52h 16m
3 stops
$2,798Lufthansa
vr, jun. 12 - vr, jun. 19
Emirates Logo
3:10 pm - 7:15 pm
STL
-
CCU
41h 35m
2 stops
Emirates Logo
8:55 pm - 10:45 pm
CCU
-
STL
36h 20m
2 stops
$7,305Emirates
Booking Insights

KAYAK's insights & trends for St. Louis to Kolkata flights

Get data-powered insights and trends into flights from St. Louis to Kolkata to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Kolkata?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Kolkata departing in September.

What is the cheapest month to fly from St. Louis to Kolkata?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Kolkata, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Kolkata is June, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $1,459 and $1,388 respectively.

Good to know

Low seasonMay
Cheapest flight$1,137
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from St. Louis to Kolkata

When to book flights from St. Louis to Kolkata

Are your dates flexible? Find out the best times to travel from St. Louis to Kolkata based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Kolkata

  • What is the cheapest flight from St. Louis to Kolkata?

    In the last 3 days, the lowest price for a flight from St. Louis to Kolkata was $1,137 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Kolkata?

    A passport is required to fly from St. Louis to Kolkata.

  • Which aircraft models fly most regularly from St. Louis to Kolkata?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Kolkata?

    oneworld is the only airline alliance operating flights between St. Louis and Kolkata.

  • Which is the best airline for flights from St. Louis to Kolkata, Qatar Airways or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Kolkata are Qatar Airways and American Airlines. With an average price for the route of $1,258 and an overall rating of 7.4, Qatar Airways is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,377 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from St. Louis to Kolkata?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Kolkata.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Kolkata?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kolkata from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Kolkata?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kolkata with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and CCU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Kolkata?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kolkata from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Kolkata

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Kolkata. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Kolkata? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Qatar AirwaysOverall score based on 3724 reviews
7.3Comfort
7.3Entertainment
7.9Crew
7.5Boarding
7.3Food
Airline reviews

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

4.0 OkayAnonymous, Feb 2026
MIA - DOH
Read more Qatar Airways reviews

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

It would help id flight crew were not rude and showed some courtesy. They were shouting at passengers and yelling instructions as if we were school children at lunch cafeteria!!

Looks like a local flight. Food was horrible. No entertainment system.

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

Everything you need to know for your flight from St. Louis to Kolkata

Information on your arrival and departure airports