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Cheap flights from Seattle to Kolkata from $515

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Kolkata departing on 4/17. 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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0 bags

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Find the cheapest flights from Seattle to Kolkata

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
8:45 am - 10:25 pm
SEA
-
CCU
24h 10m
1 stop
Singapore Airlines Logo
11:40 pm - 8:10 am
CCU
-
SEA
21h 00m
1 stop
$833Singapore Airlines
Fri, Mar 6 - Sat, Mar 14
Multiple Airlines Logo
8:45 am - 10:25 pm
SEA
-
CCU
24h 10m
1 stop
Multiple Airlines Logo
11:40 pm - 1:55 pm
CCU
-
SEA
27h 45m
2 stops
$860Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Singapore Airlines Logo
10:15 am - 10:15 pm
SEA
-
CCU
23h 30m
1 stop
Singapore Airlines Logo
11:40 pm - 8:45 am
CCU
-
SEA
21h 35m
1 stop
$863Singapore Airlines
Fri, Apr 24 - Sat, May 9
Multiple Airlines Logo
9:24 pm - 10:15 pm
SEA
-
CCU
36h 21m
2 stops
Multiple Airlines Logo
11:40 pm - 8:45 am
CCU
-
SEA
21h 35m
1 stop
$906Multiple Airlines
Fri, Apr 24 - Sat, May 9
Singapore Airlines Logo
9:45 am - 10:25 pm
SEA
-
CCU
24h 10m
1 stop
Singapore Airlines Logo
11:40 pm - 8:10 am
CCU
-
SEA
21h 00m
1 stop
$912Singapore Airlines
Fri, Mar 13 - Fri, Mar 27
Multiple Airlines Logo
8:45 am - 10:25 pm
SEA
-
CCU
24h 10m
1 stop
Multiple Airlines Logo
11:40 pm - 5:00 pm
CCU
-
SEA
30h 50m
3 stops
$914Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Turkish Airlines Logo
8:00 pm - 12:40 pm
SEA
-
CCU
52h 10m
2 stops
Turkish Airlines Logo
9:30 pm - 6:05 pm
CCU
-
SEA
33h 05m
2 stops
$915Turkish Airlines
Fri, Mar 13 - Fri, Mar 27
Singapore Airlines Logo
10:15 am - 10:15 pm
SEA
-
CCU
23h 30m
1 stop
Singapore Airlines Logo
11:40 pm - 8:45 am
CCU
-
SEA
21h 35m
1 stop
$916Singapore Airlines
Fri, Apr 24 - Sat, May 9
Singapore Airlines Logo
8:45 am - 10:25 pm
SEA
-
CCU
24h 10m
1 stop
Singapore Airlines Logo
11:40 pm - 8:10 am
CCU
-
SEA
21h 00m
1 stop
$929Singapore Airlines
Tue, Mar 3 - Mon, Mar 16
Multiple Airlines Logo
2:15 pm - 7:45 am
SEA
-
CCU
28h 00m
2 stops
Multiple Airlines Logo
8:15 pm - 11:25 am
CCU
-
SEA
28h 40m
2 stops
$966Multiple Airlines
Wed, Feb 4 - Mon, Feb 16

Turkish Airlines flights from Seattle to Kolkata

Our best Turkish Airlines deals on Seattle to Kolkata flight tickets
Turkish Airlines
Feb 8
SEA7:00 pmSeattle/Tacoma Intl
31h 15m
2 stops
CCU3:45 pmKolkata Netaji S. Chandra
Feb 25
CCU9:30 pmKolkata Netaji S. Chandra
33h 05m
2 stops
SEA5:05 pmSeattle/Tacoma Intl
$915
Turkish Airlines
Apr 15
SEA7:10 pmSeattle/Tacoma Intl
29h 15m
2 stops
CCU12:55 pmKolkata Netaji S. Chandra
May 6
CCU10:15 pmKolkata Netaji S. Chandra
31h 30m
2 stops
SEA5:15 pmSeattle/Tacoma Intl
$943
Turkish Airlines
Feb 4
SEA7:00 pmSeattle/Tacoma Intl
31h 15m
2 stops
CCU3:45 pmKolkata Netaji S. Chandra
Feb 15
CCU9:30 pmKolkata Netaji S. Chandra
33h 05m
2 stops
SEA5:05 pmSeattle/Tacoma Intl
$962

Singapore Airlines flights from Seattle to Kolkata

Our best Singapore Airlines deals on Seattle to Kolkata flight tickets
Singapore Airlines
Mar 6
SEA8:45 amSeattle/Tacoma Intl
24h 10m
1 stop
CCU10:25 pmKolkata Netaji S. Chandra
Mar 14
CCU11:40 pmKolkata Netaji S. Chandra
21h 00m
1 stop
SEA8:10 amSeattle/Tacoma Intl
$833
Singapore Airlines
Apr 24
SEA10:15 amSeattle/Tacoma Intl
23h 30m
1 stop
CCU10:15 pmKolkata Netaji S. Chandra
May 9
CCU11:40 pmKolkata Netaji S. Chandra
21h 35m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$863
Singapore Airlines
Mar 13
SEA9:45 amSeattle/Tacoma Intl
24h 10m
1 stop
CCU10:25 pmKolkata Netaji S. Chandra
Mar 27
CCU11:40 pmKolkata Netaji S. Chandra
21h 00m
1 stop
SEA8:10 amSeattle/Tacoma Intl
$912

momondo Fare Finder

 
Customize your flight search to find flights from Seattle 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 January 12, 2026.
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

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 3/6

8:45 am-10:25 pm

1 stop24h 10m

Kolkata Netaji S. Chandra

Sat 3/14

11:40 pm-8:10 am

1 stop21h 00m

$833

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 2/24

8:45 am-10:25 pm

1 stop24h 10m

Kolkata Netaji S. Chandra

Tue 3/3

11:40 pm-1:55 pm

2 stops27h 45m

$860

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 4/24

10:15 am-10:15 pm

1 stop23h 30m

Kolkata Netaji S. Chandra

Sat 5/9

11:40 pm-8:45 am

1 stop21h 35m

$863

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 4/24

9:24 pm-10:15 pm

2 stops36h 21m

Kolkata Netaji S. Chandra

Sat 5/9

11:40 pm-8:45 am

1 stop21h 35m

$906

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 3/13

9:45 am-10:25 pm

1 stop24h 10m

Kolkata Netaji S. Chandra

Fri 3/27

11:40 pm-8:10 am

1 stop21h 00m

$912

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 2/24

8:45 am-10:25 pm

1 stop24h 10m

Kolkata Netaji S. Chandra

Tue 3/3

11:40 pm-5:00 pm

3 stops30h 50m

$914

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 3/13

8:00 pm-12:40 pm

2 stops52h 10m

Kolkata Netaji S. Chandra

Fri 3/27

9:30 pm-6:05 pm

2 stops33h 05m

$915

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 4/24

10:15 am-10:15 pm

1 stop23h 30m

Kolkata Netaji S. Chandra

Sat 5/9

11:40 pm-8:45 am

1 stop21h 35m

$916

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 3/3

8:45 am-10:25 pm

1 stop24h 10m

Kolkata Netaji S. Chandra

Mon 3/16

11:40 pm-8:10 am

1 stop21h 00m

$929

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 2/4

2:15 pm-7:45 am

2 stops28h 00m

Kolkata Netaji S. Chandra

Mon 2/16

8:15 pm-11:25 am

2 stops28h 40m

$966

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 cheapest month to fly to Kolkata?

The month of September is, on average, the cheapest month to fly to Kolkata from Seattle, with most prices found around $788. If you aren’t able to travel during the month of September, then book flights to Kolkata from Seattle during January instead. Flights to Kolkata in January, while not as cheap as those in September, still average around $941.

How far in advance should I book a flight 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 $1,114 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 $818 on momondo.

Can stopping save me money on Seattle to Kolkata flights?

You could potentially save up to 82% 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 January 2026, prices for Seattle to Kolkata flights are approximately 36% cheaper 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

Fastest flight time

20h 20m

Direct flights

None
The fastest flight from Seattle to Kolkata takes 20h 20m
There are no direct flights from Seattle to Kolkata. There are no popular flight routes from Seattle to Kolkata.
Search flight deals

  • 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. 20h 20m 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 $717Free CancellationRating
8.1
1,430 reviews
Search Singapore Airlines flights
Qatar AirwaysPriceFrom $897Free CancellationRating
7.4
3,711 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $1,137Free CancellationRating
7.3
4,155 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,497Free CancellationRating
8.1
3,464 reviews
Search Emirates 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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