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Cheap flights from Seattle to Kolkata from ₹ 44,094

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 18/11. 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 return flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
08:45 - 22:25SEA-CCU
24h 10m1 stop
Singapore Airlines Logo
23:40 - 08:10CCU-SEA
21h 00m1 stop
₹ 65,433Singapore Airlines
Find Deal
Sun, 1 Mar - Fri, 13 Mar
Singapore Airlines Logo
08:45 - 22:25SEA-CCU
24h 10m1 stop
Singapore Airlines Logo
23:40 - 07:10CCU-SEA
21h 00m1 stop
₹ 75,616Singapore Airlines
Find Deal
Tue, 3 Feb - Sat, 14 Feb
Singapore Airlines Logo
09:45 - 22:25SEA-CCU
24h 10m1 stop
Singapore Airlines Logo
23:30 - 08:45CCU-SEA
21h 45m1 stop
₹ 77,298Singapore Airlines
Find Deal
Thu, 26 Mar - Sat, 25 Apr
Singapore Airlines Logo
10:15 - 22:15SEA-CCU
23h 30m1 stop
Singapore Airlines Logo
23:30 - 08:45CCU-SEA
21h 45m1 stop
₹ 78,626Singapore Airlines
Find Deal
Fri, 3 Apr - Thu, 30 Apr
Multiple Airlines Logo
08:45 - 22:25SEA-CCU
24h 10m1 stop
Multiple Airlines Logo
23:40 - 16:55CCU-SEA
29h 45m2 stops
₹ 81,902Multiple Airlines
Find Deal
Sun, 1 Mar - Fri, 13 Mar
Multiple Airlines Logo
08:45 - 22:25SEA-CCU
24h 10m1 stop
Multiple Airlines Logo
23:40 - 13:52CCU-SEA
26h 42m2 stops
₹ 84,116Multiple Airlines
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Sun, 15 Feb - Sun, 8 Mar
Turkish Airlines Logo
19:00 - 12:25SEA-CCU
27h 55m2 stops
Turkish Airlines Logo
21:30 - 18:05CCU-SEA
33h 05m2 stops
₹ 85,001Turkish Airlines
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Sun, 15 Feb - Sun, 8 Mar
Turkish Airlines Logo
20:00 - 15:45SEA-CCU
31h 15m2 stops
Turkish Airlines Logo
19:05 - 17:15CCU-SEA
34h 40m2 stops
₹ 88,720Turkish Airlines
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Thu, 26 Mar - Sat, 25 Apr
KLM Logo
15:10 - 07:10SEA-CCU
26h 30m2 stops
KLM Logo
18:30 - 13:20CCU-SEA
32h 20m2 stops
₹ 90,225KLM
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Sat, 17 Jan - Sat, 14 Feb
KLM Logo
13:40 - 07:10SEA-CCU
28h 00m2 stops
KLM Logo
20:15 - 13:20CCU-SEA
30h 35m2 stops
₹ 90,668KLM
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Sat, 17 Jan - Sun, 15 Feb

Singapore Airlines flights from Seattle to Kolkata

Our best Singapore Airlines deals on Seattle to Kolkata flight tickets
Singapore Airlines
1 Mar
SEA08:45Seattle/Tacoma Intl
24h 10m
1 stop
CCU22:25Kolkata Netaji S. Chandra
13 Mar
CCU23:40Kolkata Netaji S. Chandra
21h 00m
1 stop
SEA08:10Seattle/Tacoma Intl
₹ 65,433
Find similar
Singapore Airlines
3 Feb
SEA08:45Seattle/Tacoma Intl
24h 10m
1 stop
CCU22:25Kolkata Netaji S. Chandra
14 Feb
CCU23:40Kolkata Netaji S. Chandra
21h 00m
1 stop
SEA07:10Seattle/Tacoma Intl
₹ 75,616
Find similar
Singapore Airlines
26 Mar
SEA09:45Seattle/Tacoma Intl
24h 10m
1 stop
CCU22:25Kolkata Netaji S. Chandra
25 Apr
CCU23:30Kolkata Netaji S. Chandra
21h 45m
1 stop
SEA08:45Seattle/Tacoma Intl
₹ 77,298
Find similar

Turkish Airlines flights from Seattle to Kolkata

Our best Turkish Airlines deals on Seattle to Kolkata flight tickets
Turkish Airlines
15 Feb
SEA19:00Seattle/Tacoma Intl
27h 55m
2 stops
CCU12:25Kolkata Netaji S. Chandra
8 Mar
CCU21:30Kolkata Netaji S. Chandra
33h 05m
2 stops
SEA18:05Seattle/Tacoma Intl
₹ 85,001
Find similar
Turkish Airlines
26 Mar
SEA20:00Seattle/Tacoma Intl
31h 15m
2 stops
CCU15:45Kolkata Netaji S. Chandra
25 Apr
CCU19:05Kolkata Netaji S. Chandra
34h 40m
2 stops
SEA17:15Seattle/Tacoma Intl
₹ 88,720
Find similar
Turkish Airlines
1 Mar
SEA19:00Seattle/Tacoma Intl
31h 15m
2 stops
CCU15:45Kolkata Netaji S. Chandra
13 Mar
CCU21:30Kolkata Netaji S. Chandra
33h 05m
2 stops
SEA18:05Seattle/Tacoma Intl
₹ 91,819
Find similar

momondo Fare Finder

 
Customise 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 59,053 searches. Data last updated 3 November 2025.
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

Sun 1/3

08:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Fri 13/3

23:40-08:10

1 stop21h 00m

₹ 65,433

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 3/2

08:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Sat 14/2

23:40-07:10

1 stop21h 00m

₹ 75,616

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Thu 26/3

09:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Sat 25/4

23:30-08:45

1 stop21h 45m

₹ 77,298

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 3/4

10:15-22:15

1 stop23h 30m

Kolkata Netaji S. Chandra

Thu 30/4

23:30-08:45

1 stop21h 45m

₹ 78,626

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 1/3

08:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Fri 13/3

23:40-16:55

2 stops29h 45m

₹ 81,902

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 15/2

08:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Sun 8/3

23:40-13:52

2 stops26h 42m

₹ 84,116

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 15/2

19:00-12:25

2 stops27h 55m

Kolkata Netaji S. Chandra

Sun 8/3

21:30-18:05

2 stops33h 05m

₹ 85,001

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Thu 26/3

20:00-15:45

2 stops31h 15m

Kolkata Netaji S. Chandra

Sat 25/4

19:05-17:15

2 stops34h 40m

₹ 88,720

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 17/1

15:10-07:10

2 stops26h 30m

Kolkata Netaji S. Chandra

Sat 14/2

18:30-13:20

2 stops32h 20m

₹ 90,225

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 17/1

13:40-07:10

2 stops28h 00m

Kolkata Netaji S. Chandra

Sun 15/2

20:15-13:20

2 stops30h 35m

₹ 90,668

Flights are sorted by cheapest return 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?

If you are unable to visit Kolkata during the month of September, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around ₹ 84,027.

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

According to our data, the cheapest time of day to fly to Kolkata is in the morning. momondo users have found flights departing from Seattle to Kolkata in the morning for as low as ₹ 99,128. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Kolkata, so prices are often more expensive at around ₹ 201,274 per ticket.

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 ₹ 105,189 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kolkata from Seattle for as low as ₹ 74,907 on momondo.

How have Seattle to Kolkata flight prices changed over time?

As of November 2025, prices for Seattle to Kolkata flights are approximately 13% 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 return 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

Direct flights

None
There are no direct flights from Seattle to Kolkata. There are no popular flight routes from Seattle to Kolkata.
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  • 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 11621.6 km. Flights usually cover this in 23h 30m, depending on flying conditions and air traffic around both airports.

  • 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 are updated daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Kolkata . Millions of users trust and use momondo every year so you are in good hands.

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?

Once all potential Seattle to Kolkata flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Seattle to Kolkata flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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