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Cheap flights from St. Louis to Kolkata from $621

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Kolkata departing on 3/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
9:15 am - 2:20 amSTL-CCU
30h 35m2 stops
Qatar Airways Logo
3:50 am - 11:24 pmCCU-STL
30h 04m2 stops
$1,337Qatar Airways
Find Deal
Wed, Apr 29 - Sat, May 2
British Airways Logo
10:00 pm - 2:10 pmSTL-CCU
29h 40m2 stops
British Airways Logo
7:05 pm - 7:30 pmCCU-STL
58h 55m2 stops
$1,472British Airways
Find Deal
Wed, Apr 29 - Sun, May 3
Lufthansa Logo
3:50 pm - 8:40 amSTL-CCU
53h 20m2 stops
Lufthansa Logo
9:00 pm - 1:55 pmCCU-STL
28h 25m2 stops
$2,255Lufthansa
Find Deal
Sun, Dec 14 - Sat, Jan 17
Multiple Airlines Logo
3:50 pm - 4:50 pmSTL-CCU
37h 30m2 stops
Multiple Airlines Logo
9:00 pm - 1:55 pmCCU-STL
28h 25m2 stops
$2,405Multiple Airlines
Find Deal
Sun, Dec 14 - Sat, Jan 17
Qatar Airways Logo
3:22 pm - 1:55 amSTL-CCU
23h 03m2 stops
Qatar Airways Logo
3:25 am - 10:44 pmCCU-STL
54h 49m2 stops
$2,547Qatar Airways
Find Deal
Sun, Dec 14 - Fri, Jan 16
Qatar Airways Logo
2:54 pm - 1:55 amSTL-CCU
23h 31m2 stops
Qatar Airways Logo
3:25 am - 10:44 pmCCU-STL
54h 49m2 stops
$2,550Qatar Airways
Find Deal
Sun, Dec 14 - Fri, Jan 16

Qatar Airways flights from St. Louis to Kolkata

Our best Qatar Airways deals on St. Louis to Kolkata flight tickets
Qatar Airways
Nov 4
STL10:44 amLambert-St Louis
27h 41m
2 stops
CCU1:55 amKolkata Netaji S. Chandra
Dec 10
CCU3:25 amKolkata Netaji S. Chandra
27h 10m
2 stops
STL7:05 pmLambert-St Louis
$1,180
Find similar
Qatar Airways
Apr 29
STL9:15 amLambert-St Louis
30h 35m
2 stops
CCU2:20 amKolkata Netaji S. Chandra
May 2
CCU3:50 amKolkata Netaji S. Chandra
30h 04m
2 stops
STL11:24 pmLambert-St Louis
$1,337
Find similar
Qatar Airways
Nov 8
STL3:59 pmLambert-St Louis
46h 26m
2 stops
CCU1:55 amKolkata Netaji S. Chandra
Nov 11
CCU3:25 amKolkata Netaji S. Chandra
54h 32m
2 stops
STL10:27 pmLambert-St Louis
$1,805
Find similar

British Airways flights from St. Louis to Kolkata

Our best British Airways deals on St. Louis to Kolkata flight tickets
British Airways
Apr 29
STL10:00 pmLambert-St Louis
29h 40m
2 stops
CCU2:10 pmKolkata Netaji S. Chandra
May 3
CCU7:05 pmKolkata Netaji S. Chandra
58h 55m
2 stops
STL7:30 pmLambert-St Louis
$1,472
Find similar
British Airways
Nov 4
STL2:51 pmLambert-St Louis
29h 04m
3 stops
CCU7:25 amKolkata Netaji S. Chandra
Dec 11
CCU10:30 pmKolkata Netaji S. Chandra
32h 05m
3 stops
STL7:05 pmLambert-St Louis
$2,347
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from St. Louis to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Wed 4/29

9:15 am-2:20 am

2 stops30h 35m

Kolkata Netaji S. Chandra

Sat 5/2

3:50 am-11:24 pm

2 stops30h 04m

$1,337

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Wed 4/29

10:00 pm-2:10 pm

2 stops29h 40m

Kolkata Netaji S. Chandra

Sun 5/3

7:05 pm-7:30 pm

2 stops58h 55m

$1,472

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Sun 12/14

3:50 pm-8:40 am

2 stops53h 20m

Kolkata Netaji S. Chandra

Sat 1/17

9:00 pm-1:55 pm

2 stops28h 25m

$2,255

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Sun 12/14

3:50 pm-4:50 pm

2 stops37h 30m

Kolkata Netaji S. Chandra

Sat 1/17

9:00 pm-1:55 pm

2 stops28h 25m

$2,405

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Sun 12/14

3:22 pm-1:55 am

2 stops23h 03m

Kolkata Netaji S. Chandra

Fri 1/16

3:25 am-10:44 pm

2 stops54h 49m

$2,547

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Sun 12/14

2:54 pm-1:55 am

2 stops23h 31m

Kolkata Netaji S. Chandra

Fri 1/16

3:25 am-10:44 pm

2 stops54h 49m

$2,550

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Fri 3/6

2:55 pm-4:35 am

3 stops50h 10m

$621

St. LouisKolkata

STL - CCU

STLCCU

Lambert-St Louis

Fri 3/6

2:55 pm-12:15 pm

2 stops57h 50m

$689

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Kolkata from

How to get the cheapest flight ticket from St. Louis to Kolkata

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Kolkata?

What is the cheapest day to depart on your flight to Kolkata?

On average, the least expensive day to fly to Kolkata from St. Louis is on a Friday. momondo users have found tickets for Friday departures for as low as $1,276. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Kolkata on Sunday is $1,581.

What is the cheapest time of day to depart on your flight to Kolkata?

In the morning is the cheapest time of day to fly from St. Louis to Kolkata when you can find flight prices for as low as $1,270. Flying to Kolkata in the morning is an ideal time because this is during off-peak travel hours. Flights to Kolkata are more costly in the afternoon, with an average ticket price of $1,581. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from St. Louis to Kolkata

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Kolkata according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Kolkata (STL to CCU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Kolkata

Direct flights

None
There are no direct flights from St. Louis to Kolkata. There are no popular flight routes from St. Louis to Kolkata.
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  • How far is Lambert-St Louis to Kolkata Netaji S. Chandra by plane?

    Kolkata Netaji S. Chandra is 8202.2 mi away from Lambert-St Louis. By plane, this route typically takes 23h 03m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Kolkata Netaji S. Chandra Airport?

    Prices for flights from Lambert-St Louis Airport to Kolkata Netaji S. Chandra Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Kolkata Netaji S. Chandra Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Kolkata Netaji S. Chandra Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Kolkata Netaji S. Chandra Airport.

  • What documentation or ID do you need to fly to Kolkata Netaji S. Chandra Airport?

    The travel and health documents required for your trip to Kolkata Netaji S. Chandra Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kolkata Netaji S. Chandra Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Kolkata?

Best airlines flying from St. Louis to Kolkata

Compare and see reviews for airlines that fly from St. Louis to Kolkata with momondo
Airline
Rating
Free Cancellation
Price
Qatar AirwaysPriceFrom $1,116Free CancellationRating
7.4
3,659 reviews
Search Qatar Airways flights
American AirlinesPriceFrom $1,327Free CancellationRating
7.2
11,033 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Kolkata?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kolkata from St. Louis.

Can I find flights from St. Louis to Kolkata with flexible booking policies on momondo?

Yes. All flights to Kolkata from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Kolkata?

Once you have performed a search for St. Louis to Kolkata flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Kolkata right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Kolkata from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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