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Cheap flights from St. Louis to Kolkata from $645

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 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Kolkata

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:21 am - 2:55 amSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
30h 04m2 stops Charlotte Douglas Abu Dhabi Zayed Intl
Multiple Airlines Logo
9:30 pm - 4:48 pmCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
29h 48m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl
$1,031Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
7:27 am - 2:55 amSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
32h 58m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl
Multiple Airlines Logo
9:00 pm - 9:08 pmCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
35h 38m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl
$1,031Multiple Airlines
Sun, Oct 4 - Fri, Dec 11
Multiple Airlines Logo
11:31 am - 2:25 amSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
27h 24m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl
Multiple Airlines Logo
9:00 pm - 7:30 pmCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
34h 00m2 stops Abu Dhabi Zayed Intl Charlotte Douglas
$1,031Multiple Airlines
Fri, Jan 29 - Fri, Feb 26
Multiple Airlines Logo
11:01 am - 2:55 amSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
29h 24m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl
Multiple Airlines Logo
9:30 pm - 5:58 pmCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
30h 58m2 stops Abu Dhabi Zayed Intl Washington, D.C. Dulles Intl
$1,031Multiple Airlines
Thu, Sep 17 - Fri, Oct 16
Multiple Airlines Logo
5:00 am - 7:55 pmSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
27h 25m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl
Multiple Airlines Logo
9:00 pm - 3:04 pmCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
29h 34m2 stops Abu Dhabi Zayed Intl Charlotte Douglas
$1,033Multiple Airlines
Sat, Jan 16 - Sat, Jan 30
Etihad Airways Logo
6:00 pm - 8:30 pmSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
40h 00m2 stops Boston Logan Intl Abu Dhabi Zayed Intl
Etihad Airways Logo
3:50 am - 12:09 amCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
30h 49m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl
$1,180Etihad Airways
Mon, Sep 28 - Sat, Oct 17
Multiple Airlines Logo
8:13 am - 7:55 pmSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
24h 12m2 stops Charlotte Douglas Abu Dhabi Zayed Intl
Multiple Airlines Logo
9:00 pm - 9:08 pmCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
35h 38m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl
$1,189Multiple Airlines
Sat, Jan 9 - Sat, Jan 23
Qatar Airways Logo
11:01 am - 2:30 amSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
28h 59m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
4:00 am - 9:43 pmCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
28h 13m2 stops Doha Hamad Intl Philadelphia
$1,200Qatar Airways
Mon, Sep 14 - Fri, Sep 18
Qatar Airways Logo
11:01 am - 2:30 amSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
28h 59m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
4:00 am - 9:43 pmCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
28h 13m2 stops Doha Hamad Intl Philadelphia
$1,227Qatar Airways
Mon, Sep 14 - Fri, Sep 18
Multiple Airlines Logo
1:29 pm - 4:50 amSTL  Lambert-St Louis-CCU Kolkata Netaji S. Chandra
28h 51m3 stops Chicago O'Hare Intl Munich Franz Josef Strauss New Delhi Indira Gandhi Intl
Multiple Airlines Logo
4:10 pm - 2:00 pmCCU  Kolkata Netaji S. Chandra-STL Lambert-St Louis
32h 20m2 stops New Delhi Indira Gandhi Intl Toronto Pearson Intl
$1,649Multiple Airlines
Mon, Sep 28 - Sun, Oct 18

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Qatar Airways flights from St. Louis to Kolkata

Our best Qatar Airways deals on St. Louis to Kolkata flight tickets
Qatar Airways
Sep 14
STL11:01 amLambert-St Louis
28h 59m
2 stops
CCU2:30 amKolkata Netaji S. Chandra
Sep 18
CCU4:00 amKolkata Netaji S. Chandra
28h 13m
2 stops
STL9:43 pmLambert-St Louis
$1,200
Qatar Airways
Sep 14
STL11:01 amLambert-St Louis
28h 59m
2 stops
CCU2:30 amKolkata Netaji S. Chandra
Sep 18
CCU4:00 amKolkata Netaji S. Chandra
28h 13m
2 stops
STL9:43 pmLambert-St Louis
$1,227
Qatar Airways
Dec 18
STL3:30 pmLambert-St Louis
46h 55m
2 stops
CCU1:55 amKolkata Netaji S. Chandra
Jan 15
CCU3:25 amKolkata Netaji S. Chandra
32h 04m
2 stops
STL11:59 pmLambert-St Louis
$2,603

Lufthansa flights from St. Louis to Kolkata

Our best Lufthansa deals on St. Louis to Kolkata flight tickets
Lufthansa
Sep 11
STL12:59 pmLambert-St Louis
33h 21m
3 stops
CCU8:50 amKolkata Netaji S. Chandra
Sep 18
CCU10:00 pmKolkata Netaji S. Chandra
35h 29m
3 stops
STL10:59 pmLambert-St Louis
$2,165
Lufthansa
Jan 9
STL1:00 pmLambert-St Louis
32h 10m
3 stops
CCU8:40 amKolkata Netaji S. Chandra
Jan 23
CCU9:00 pmKolkata Netaji S. Chandra
28h 15m
3 stops
STL1:45 pmLambert-St Louis
$2,182
Lufthansa
Oct 4
STL7:01 pmLambert-St Louis
51h 19m
3 stops
CCU8:50 amKolkata Netaji S. Chandra
Dec 11
CCU9:00 pmKolkata Netaji S. Chandra
37h 55m
3 stops
STL11:25 pmLambert-St Louis
$2,392

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 August 7, 2026.
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

Cheapest round-trip

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Fri 9/11

10:21 am-2:55 am

2 stops30h 04m

Kolkata Netaji S. Chandra

Fri 9/18

9:30 pm-4:48 pm

2 stops29h 48m

$1,031

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Sun 10/4

7:27 am-2:55 am

2 stops32h 58m

Kolkata Netaji S. Chandra

Fri 12/11

9:00 pm-9:08 pm

2 stops35h 38m

$1,031

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Fri 1/29

11:31 am-2:25 am

2 stops27h 24m

Kolkata Netaji S. Chandra

Fri 2/26

9:00 pm-7:30 pm

2 stops34h 00m

$1,031

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Thu 9/17

11:01 am-2:55 am

2 stops29h 24m

Kolkata Netaji S. Chandra

Fri 10/16

9:30 pm-5:58 pm

2 stops30h 58m

$1,031
Quickest round-trip

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Sat 1/16

5:00 am-7:55 pm

2 stops27h 25m

Kolkata Netaji S. Chandra

Sat 1/30

9:00 pm-3:04 pm

2 stops29h 34m

$1,033

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Mon 9/28

6:00 pm-8:30 pm

2 stops40h 00m

Kolkata Netaji S. Chandra

Sat 10/17

3:50 am-12:09 am

2 stops30h 49m

$1,180

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Sat 1/9

8:13 am-7:55 pm

2 stops24h 12m

Kolkata Netaji S. Chandra

Sat 1/23

9:00 pm-9:08 pm

2 stops35h 38m

$1,189

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Mon 9/14

11:01 am-2:30 am

2 stops28h 59m

Kolkata Netaji S. Chandra

Fri 9/18

4:00 am-9:43 pm

2 stops28h 13m

$1,200

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Mon 9/14

11:01 am-2:30 am

2 stops28h 59m

Kolkata Netaji S. Chandra

Fri 9/18

4:00 am-9:43 pm

2 stops28h 13m

$1,227

St. LouisKolkata

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

STLCCU

Lambert-St Louis

Mon 9/28

1:29 pm-4:50 am

3 stops28h 51m

Kolkata Netaji S. Chandra

Sun 10/18

4:10 pm-2:00 pm

2 stops32h 20m

$1,649

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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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 cheapest month to fly to Kolkata?

The month of July is, on average, the cheapest month to fly to Kolkata from St. Louis, with most prices found around $0. If you aren’t able to travel during the month of July, then book flights to Kolkata from St. Louis during June instead. Flights to Kolkata in June, while not as cheap as those in July, still average around $0.

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

Fastest flight time

24h 56m

Direct flights

None
The fastest flight from St. Louis to Kolkata takes 24h 56m
There are no direct flights from St. Louis to Kolkata. There are no popular flight routes from St. Louis to Kolkata.
Search flight deals

Frequently asked questions about flying from St. Louis to Kolkata

  • 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 24h 56m.

  • 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 $1,071Free CancellationRating
7.4
3,740 reviews
Search Qatar Airways 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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