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Cheap flights from Seattle to Kolkata from $385

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Kolkata

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
9:40 am - 10:30 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
24h 20m1 stop Singapore Changi
Singapore Airlines Logo
11:50 pm - 8:45 amCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 25m1 stop Singapore Changi
$935Singapore Airlines
Sun, Mar 21 - Thu, Apr 15
Singapore Airlines Logo
8:40 am - 10:25 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
24h 15m1 stop Singapore Changi
Singapore Airlines Logo
11:40 pm - 8:45 amCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 35m1 stop Singapore Changi
$1,013Singapore Airlines
Sat, Jan 23 - Sat, Mar 27
Multiple Airlines Logo
9:40 am - 10:30 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
24h 20m1 stop Singapore Changi
Multiple Airlines Logo
11:50 pm - 6:56 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
31h 36m2 stops Singapore Changi San Francisco
$1,021Multiple Airlines
Sun, Mar 21 - Thu, Apr 15
Multiple Airlines Logo
11:18 pm - 7:55 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
32h 07m2 stops New York John F Kennedy Intl Mumbai Chhatrapati Shivaji Intl
Multiple Airlines Logo
8:55 pm - 11:55 amCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
27h 30m2 stops New Delhi Indira Gandhi Intl San Francisco
$1,053Multiple Airlines
Mon, Oct 19 - Wed, Oct 28
Multiple Airlines Logo
11:18 pm - 4:55 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
29h 07m2 stops New York John F Kennedy Intl Mumbai Chhatrapati Shivaji Intl
Multiple Airlines Logo
10:30 pm - 11:55 amCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
25h 55m2 stops New Delhi Indira Gandhi Intl San Francisco
$1,064Multiple Airlines
Sun, Oct 18 - Wed, Oct 28
Singapore Airlines Logo
8:40 am - 10:25 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
48h 15m1 stop Singapore Changi
Singapore Airlines Logo
11:20 pm - 7:05 amCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 15m1 stop Singapore Changi
$1,154Singapore Airlines
Wed, Nov 18 - Tue, Dec 1
Singapore Airlines Logo
8:40 am - 10:25 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
48h 15m1 stop Singapore Changi
Singapore Airlines Logo
11:40 pm - 8:45 amCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 35m1 stop Singapore Changi
$1,203Singapore Airlines
Fri, Jan 22 - Sat, Mar 27
Qatar Airways Logo
4:50 pm - 1:55 amSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
20h 35m1 stop Doha Hamad Intl
Qatar Airways Logo
4:00 am - 12:55 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 25m1 stop Doha Hamad Intl
$1,241Qatar Airways
Mon, Mar 22 - Wed, Apr 14
Qatar Airways Logo
4:50 pm - 1:55 amSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
20h 35m1 stop Doha Hamad Intl
Qatar Airways Logo
4:00 am - 12:55 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 25m1 stop Doha Hamad Intl
$1,241Qatar Airways
Sun, Mar 21 - Fri, Apr 16
Qatar Airways Logo
4:50 pm - 1:55 amSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
20h 35m1 stop Doha Hamad Intl
Qatar Airways Logo
4:00 am - 12:55 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 25m1 stop Doha Hamad Intl
$1,241Qatar Airways
Mon, Mar 22 - Fri, Apr 16

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Turkish Airlines flights from Seattle to Kolkata

Our best Turkish Airlines deals on Seattle to Kolkata flight tickets
Turkish Airlines
Jan 22
SEA7:05 pmSeattle/Tacoma Intl
30h 45m
2 stops
CCU3:20 pmKolkata Netaji S. Chandra
Mar 26
CCU8:15 pmKolkata Netaji S. Chandra
34h 25m
2 stops
SEA6:10 pmSeattle/Tacoma Intl
$1,163
Turkish Airlines
Oct 20
SEA7:15 pmSeattle/Tacoma Intl
31h 45m
2 stops
CCU3:30 pmKolkata Netaji S. Chandra
Nov 19
CCU9:30 pmKolkata Netaji S. Chandra
33h 10m
2 stops
SEA5:10 pmSeattle/Tacoma Intl
$1,195
Turkish Airlines
Mar 19
SEA8:05 pmSeattle/Tacoma Intl
28h 15m
2 stops
CCU12:50 pmKolkata Netaji S. Chandra
Apr 16
CCU6:45 pmKolkata Netaji S. Chandra
35h 00m
2 stops
SEA5:15 pmSeattle/Tacoma Intl
$1,230

Singapore Airlines flights from Seattle to Kolkata

Our best Singapore Airlines deals on Seattle to Kolkata flight tickets
Singapore Airlines
Mar 21
SEA9:40 amSeattle/Tacoma Intl
24h 20m
1 stop
CCU10:30 pmKolkata Netaji S. Chandra
Apr 15
CCU11:50 pmKolkata Netaji S. Chandra
21h 25m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$935
Singapore Airlines
Jan 23
SEA8:40 amSeattle/Tacoma Intl
24h 15m
1 stop
CCU10:25 pmKolkata Netaji S. Chandra
Mar 27
CCU11:40 pmKolkata Netaji S. Chandra
21h 35m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$1,013
Singapore Airlines
Nov 18
SEA8:40 amSeattle/Tacoma Intl
48h 15m
1 stop
CCU10:25 pmKolkata Netaji S. Chandra
Dec 1
CCU11:20 pmKolkata Netaji S. Chandra
21h 15m
1 stop
SEA7:05 amSeattle/Tacoma Intl
$1,154

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Sun 3/21

9:40 am-10:30 pm

1 stop24h 20m

Kolkata Netaji S. Chandra

Thu 4/15

11:50 pm-8:45 am

1 stop21h 25m

$935

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Sat 1/23

8:40 am-10:25 pm

1 stop24h 15m

Kolkata Netaji S. Chandra

Sat 3/27

11:40 pm-8:45 am

1 stop21h 35m

$1,013

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Sun 3/21

9:40 am-10:30 pm

1 stop24h 20m

Kolkata Netaji S. Chandra

Thu 4/15

11:50 pm-6:56 pm

2 stops31h 36m

$1,021

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Mon 10/19

11:18 pm-7:55 pm

2 stops32h 07m

Kolkata Netaji S. Chandra

Wed 10/28

8:55 pm-11:55 am

2 stops27h 30m

$1,053

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Sun 10/18

11:18 pm-4:55 pm

2 stops29h 07m

Kolkata Netaji S. Chandra

Wed 10/28

10:30 pm-11:55 am

2 stops25h 55m

$1,064

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Wed 11/18

8:40 am-10:25 pm

1 stop48h 15m

Kolkata Netaji S. Chandra

Tue 12/1

11:20 pm-7:05 am

1 stop21h 15m

$1,154

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Fri 1/22

8:40 am-10:25 pm

1 stop48h 15m

Kolkata Netaji S. Chandra

Sat 3/27

11:40 pm-8:45 am

1 stop21h 35m

$1,203
Quickest round-trip

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Mon 3/22

4:50 pm-1:55 am

1 stop20h 35m

Kolkata Netaji S. Chandra

Wed 4/14

4:00 am-12:55 pm

1 stop21h 25m

$1,241

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Sun 3/21

4:50 pm-1:55 am

1 stop20h 35m

Kolkata Netaji S. Chandra

Fri 4/16

4:00 am-12:55 pm

1 stop21h 25m

$1,241

SeattleKolkata

SEA Seattle/Tacoma Intl - CCU Kolkata Netaji S. Chandra

SEACCU

Seattle/Tacoma Intl

Mon 3/22

4:50 pm-1:55 am

1 stop20h 35m

Kolkata Netaji S. Chandra

Fri 4/16

4:00 am-12:55 pm

1 stop21h 25m

$1,241

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kolkata from

How to get the cheapest flight ticket from Seattle 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 Seattle and Kolkata?

Prices are currently low for flights on this route.

Typical prices usually range from $1,085 to $1,637.
The lowest price recently found on this route was $1,053.

What is the cheapest month to fly to Kolkata?

The month of April is, on average, the cheapest month to fly to Kolkata from Seattle, with most prices found around $991. If you aren’t able to travel during the month of April, then book flights to Kolkata from Seattle during March instead. Flights to Kolkata in March, while not as cheap as those in April, still average around $1,000.

How far in advance should I book a flight from Seattle to Kolkata?

You are more likely to see cheaper flights to Kolkata from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Kolkata for around $1,194 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kolkata from Seattle for as low as $935 on momondo.

Can stopping save me money on Seattle to Kolkata flights?

You could potentially save up to 34% on your flight if you consider stops on a Seattle to Kolkata flight.

How have Seattle to Kolkata flight prices changed over time?

As of September 2026, prices for Seattle to Kolkata flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Kolkata

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

Cheap Seattle to Kolkata (SEA to CCU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Kolkata

Best Price Found

$385

Fastest flight time

26h 35m

Direct flights

None
The best one-way flight to Kolkata from Seattle in the past 72 hours is $385. The best round-trip flight deal from Seattle to Kolkata found on momondo in the last 72 hours is $935.
The fastest flight from Seattle to Kolkata takes 26h 35m
There are no direct flights from Seattle to Kolkata. There are no popular flight routes from Seattle to Kolkata.
Search flight deals

Frequently asked questions about flying from Seattle to Kolkata

  • How far is Seattle/Tacoma Intl to Kolkata Netaji S. Chandra by plane?

    The straight-line distance from Seattle/Tacoma Intl to Kolkata Netaji S. Chandra is 7221.3 mi. 26h 35m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Kolkata Netaji S. Chandra Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Kolkata Netaji S. Chandra Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Kolkata Netaji S. Chandra Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl 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 Seattle/Tacoma Intl Airport to Kolkata Netaji S. Chandra Airport.

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

    The necessary travel and health documents for your Kolkata Netaji S. Chandra Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Kolkata?

Best airlines flying from Seattle to Kolkata

Compare and see reviews for airlines that fly from Seattle to Kolkata with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $744Free CancellationRating
8.2
1,617 reviews
Search Singapore Airlines flights
Qatar AirwaysPriceFrom $1,072Free CancellationRating
7.3
3,729 reviews
Search Qatar Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Kolkata?

Finding the right flight to Kolkata from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Kolkata quick and easy, saving you time and money.

Can I find flights from Seattle to Kolkata with flexible booking policies on momondo?

Flights from Seattle to Kolkata with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Kolkata?

momondo provides multiple filters to help you find the best flight to Kolkata from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Seattle to Kolkata flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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