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Cheap flights from Seattle to Kolkata from ₹ 44,924

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 1/9. 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

Singapore Airlines Logo
09:45 - 22:25SEA-CCU
24h 10m1 stop
Singapore Airlines Logo
23:40 - 07:10CCU-SEA
21h 00m1 stop
₹ 68,392Singapore Airlines
Find Deal
Sat, 1 Nov - Sat, 15 Nov
Singapore Airlines Logo
08:45 - 22:25SEA-CCU
24h 10m1 stop
Singapore Airlines Logo
23:40 - 07:10CCU-SEA
21h 00m1 stop
₹ 75,223Singapore Airlines
Find Deal
Tue, 13 Jan - Sat, 24 Jan
Singapore Airlines Logo
08:45 - 22:25SEA-CCU
24h 10m1 stop
Singapore Airlines Logo
23:40 - 07:10CCU-SEA
21h 00m1 stop
₹ 75,310Singapore Airlines
Find Deal
Tue, 13 Jan - Sat, 24 Jan
Singapore Airlines Logo
21:25 - 22:25SEA-CCU
35h 30m2 stops
Singapore Airlines Logo
23:40 - 07:10CCU-SEA
21h 00m1 stop
₹ 76,449Singapore Airlines
Find Deal
Tue, 13 Jan - Sat, 24 Jan
Air India Logo
23:59 - 16:50SEA-CCU
28h 21m2 stops
Air India Logo
06:25 - 22:10CCU-SEA
52h 15m2 stops
₹ 80,740Air India
Find Deal
Wed, 1 Oct - Tue, 21 Oct
Turkish Airlines Logo
20:00 - 12:25SEA-CCU
27h 55m2 stops
Turkish Airlines Logo
18:30 - 17:05CCU-SEA
36h 05m2 stops
₹ 93,087Turkish Airlines
Find Deal
Sat, 1 Nov - Sat, 15 Nov
Logo
13:20 - 06:00SEA-CCU
28h 10m2 stops
Logo
19:50 - 10:50CCU-SEA
27h 30m2 stops
₹ 93,700
Find Deal
Fri, 15 Aug - Fri, 22 Aug
Logo
12:50 - 00:45SEA-CCU
47h 25m2 stops
Logo
02:00 - 10:40CCU-SEA
45h 10m2 stops
₹ 93,788
Find Deal
Sun, 14 Sep - Sat, 20 Sep
Air India Logo
23:59 - 20:30SEA-CCU
32h 01m2 stops
Air India Logo
07:00 - 22:24CCU-SEA
51h 54m2 stops
₹ 94,138Air India
Find Deal
Sun, 14 Sep - Sun, 21 Sep
Turkish Airlines Logo
19:10 - 12:55SEA-CCU
29h 15m2 stops
Turkish Airlines Logo
22:15 - 18:05CCU-SEA
32h 20m2 stops
₹ 100,268Turkish Airlines
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Tue, 21 Oct - Sat, 25 Oct

Singapore Airlines flights from Seattle to Kolkata

Our best Singapore Airlines deals on Seattle to Kolkata flight tickets
Singapore Airlines
1 Nov
SEA09:45Seattle/Tacoma Intl
24h 10m
1 stop
CCU22:25Kolkata Netaji S. Chandra
15 Nov
CCU23:40Kolkata Netaji S. Chandra
21h 00m
1 stop
SEA07:10Seattle/Tacoma Intl
₹ 68,392
Find similar
Singapore Airlines
13 Jan
SEA08:45Seattle/Tacoma Intl
24h 10m
1 stop
CCU22:25Kolkata Netaji S. Chandra
24 Jan
CCU23:40Kolkata Netaji S. Chandra
21h 00m
1 stop
SEA07:10Seattle/Tacoma Intl
₹ 75,223
Find similar
Singapore Airlines
13 Jan
SEA08:45Seattle/Tacoma Intl
24h 10m
1 stop
CCU22:25Kolkata Netaji S. Chandra
24 Jan
CCU23:40Kolkata Netaji S. Chandra
21h 00m
1 stop
SEA07:10Seattle/Tacoma Intl
₹ 75,310
Find similar

Air India flights from Seattle to Kolkata

Our best Air India deals on Seattle to Kolkata flight tickets
Air India
1 Oct
SEA23:59Seattle/Tacoma Intl
28h 21m
2 stops
CCU16:50Kolkata Netaji S. Chandra
21 Oct
CCU06:25Kolkata Netaji S. Chandra
52h 15m
2 stops
SEA22:10Seattle/Tacoma Intl
₹ 80,740
Find similar
Air India
14 Sept
SEA23:59Seattle/Tacoma Intl
32h 01m
2 stops
CCU20:30Kolkata Netaji S. Chandra
21 Sept
CCU07:00Kolkata Netaji S. Chandra
51h 54m
2 stops
SEA22:24Seattle/Tacoma Intl
₹ 94,138
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 1 August 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

Sat 1/11

09:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Sat 15/11

23:40-07:10

1 stop21h 00m

₹ 68,392

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 13/1

08:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Sat 24/1

23:40-07:10

1 stop21h 00m

₹ 75,223

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 13/1

08:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Sat 24/1

23:40-07:10

1 stop21h 00m

₹ 75,310

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 13/1

21:25-22:25

2 stops35h 30m

Kolkata Netaji S. Chandra

Sat 24/1

23:40-07:10

1 stop21h 00m

₹ 76,449

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 1/10

23:59-16:50

2 stops28h 21m

Kolkata Netaji S. Chandra

Tue 21/10

06:25-22:10

2 stops52h 15m

₹ 80,740

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 1/11

20:00-12:25

2 stops27h 55m

Kolkata Netaji S. Chandra

Sat 15/11

18:30-17:05

2 stops36h 05m

₹ 93,087

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 15/8

13:20-06:00

2 stops28h 10m

Kolkata Netaji S. Chandra

Fri 22/8

19:50-10:50

2 stops27h 30m

₹ 93,700

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 14/9

12:50-00:45

2 stops47h 25m

Kolkata Netaji S. Chandra

Sat 20/9

02:00-10:40

2 stops45h 10m

₹ 93,788

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 14/9

23:59-20:30

2 stops32h 01m

Kolkata Netaji S. Chandra

Sun 21/9

07:00-22:24

2 stops51h 54m

₹ 94,138

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 21/10

19:10-12:55

2 stops29h 15m

Kolkata Netaji S. Chandra

Sat 25/10

22:15-18:05

2 stops32h 20m

₹ 100,268

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

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 ₹ 84,067.

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 ₹ 98,039. 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 ₹ 199,064 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 ₹ 107,040 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 ₹ 80,827 on momondo.

How have Seattle to Kolkata flight prices changed over time?

As of August 2025, prices for Seattle to Kolkata flights are approximately 53% 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

Best price found

₹ 44,924

Fastest flight time

23h 25m

Direct flights

None

Airports in Kolkata

1 airport
The best one-way flight to Kolkata from Seattle in the past 72 hours is ₹ 44,924. The best return flight deal from Seattle to Kolkata found on momondo in the last 72 hours is ₹ 68,392.
The fastest flight from Seattle to Kolkata takes 23h 25m
There are no direct flights from Seattle to Kolkata. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Kolkata Netaji S. Chandra Airport.
There is 1 airport near Kolkata: Kolkata Netaji S. Chandra (CCU)
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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 25m, 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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