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Cheap flights from Seattle to Kolkata from ₹ 50,647

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 16/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Kolkata

Cheap return flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
23:40 - 02:55SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
38h 45m2 stops Boston Logan Intl Abu Dhabi Zayed Intl
Etihad Airways Logo
21:30 - 20:44CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
35h 44m2 stops Abu Dhabi Zayed Intl New York John F Kennedy Intl
₹ 98,343Etihad Airways
Sat, 5 Sep - Wed, 16 Sep
Etihad Airways Logo
23:41 - 20:30SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
32h 19m2 stops Boston Logan Intl Abu Dhabi Zayed Intl
Etihad Airways Logo
21:30 - 22:38CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
37h 38m2 stops Abu Dhabi Zayed Intl Boston Logan Intl
₹ 101,865Etihad Airways
Fri, 4 Sep - Sun, 18 Oct
Etihad Airways Logo
23:42 - 20:30SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
32h 18m2 stops Boston Logan Intl Abu Dhabi Zayed Intl
Etihad Airways Logo
21:30 - 20:44CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
35h 44m2 stops Abu Dhabi Zayed Intl New York John F Kennedy Intl
₹ 102,817Etihad Airways
Wed, 23 Sep - Sun, 27 Sep
Multiple Airlines Logo
06:15 - 02:55SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
32h 10m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl
Multiple Airlines Logo
21:30 - 21:36CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
36h 36m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl
₹ 102,912Multiple Airlines
Sun, 20 Sep - Sun, 27 Sep
Multiple Airlines Logo
10:59 - 02:55SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
27h 26m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl
Multiple Airlines Logo
21:30 - 20:43CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
35h 43m2 stops Abu Dhabi Zayed Intl New York John F Kennedy Intl
₹ 104,055Multiple Airlines
Fri, 2 Oct - Sun, 4 Oct
Multiple Airlines Logo
00:10 - 23:50SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
35h 10m2 stops Incheon Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
01:00 - 15:15CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
26h 45m2 stops Bangkok Suvarnabhumi Incheon Intl
₹ 104,531Multiple Airlines
Mon, 31 Aug - Wed, 9 Sep
Multiple Airlines Logo
00:10 - 23:50SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
34h 10m2 stops Incheon Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
00:50 - 13:55CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
26h 35m2 stops Bangkok Suvarnabhumi Incheon Intl
₹ 104,816Multiple Airlines
Mon, 4 Jan - Mon, 22 Feb
Singapore Airlines Logo
08:45 - 22:25SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
48h 10m1 stop Singapore Changi
Singapore Airlines Logo
23:40 - 07:10CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 00m1 stop Singapore Changi
₹ 105,578Singapore Airlines
Tue, 5 Jan - Tue, 23 Feb
Singapore Airlines Logo
08:45 - 22:30SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
24h 15m1 stop Singapore Changi
Singapore Airlines Logo
23:40 - 07:10CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 00m1 stop Singapore Changi
₹ 106,149Singapore Airlines
Sun, 17 Jan - Sat, 30 Jan
Etihad Airways Logo
23:45 - 20:30SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
32h 15m2 stops Boston Logan Intl Abu Dhabi Zayed Intl
Etihad Airways Logo
21:30 - 22:38CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
37h 38m2 stops Abu Dhabi Zayed Intl Boston Logan Intl
₹ 106,339Etihad Airways
Wed, 2 Sep - Sun, 18 Oct

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Turkish Airlines flights from Seattle to Kolkata

Our best Turkish Airlines deals on Seattle to Kolkata flight tickets
Turkish Airlines
28 Oct
SEA20:05Seattle/Tacoma Intl
31h 10m
2 stops
CCU15:45Kolkata Netaji S. Chandra
17 Nov
CCU22:30Kolkata Netaji S. Chandra
32h 10m
2 stops
SEA17:10Seattle/Tacoma Intl
₹ 114,336
Turkish Airlines
17 Jan
SEA19:05Seattle/Tacoma Intl
31h 10m
2 stops
CCU15:45Kolkata Netaji S. Chandra
30 Jan
CCU21:30Kolkata Netaji S. Chandra
33h 10m
2 stops
SEA17:10Seattle/Tacoma Intl
₹ 115,288
Turkish Airlines
25 Oct
SEA20:05Seattle/Tacoma Intl
27h 50m
2 stops
CCU12:25Kolkata Netaji S. Chandra
19 Nov
CCU20:45Kolkata Netaji S. Chandra
33h 55m
2 stops
SEA17:10Seattle/Tacoma Intl
₹ 118,811

Qatar Airways flights from Seattle to Kolkata

Our best Qatar Airways deals on Seattle to Kolkata flight tickets
Qatar Airways
26 Nov
SEA15:50Seattle/Tacoma Intl
20h 35m
1 stop
CCU01:55Kolkata Netaji S. Chandra
20 Dec
CCU03:25Kolkata Netaji S. Chandra
21h 45m
1 stop
SEA11:40Seattle/Tacoma Intl
₹ 116,621
Qatar Airways
20 Sept
SEA16:25Seattle/Tacoma Intl
21h 35m
1 stop
CCU02:30Kolkata Netaji S. Chandra
27 Sept
CCU04:00Kolkata Netaji S. Chandra
21h 15m
1 stop
SEA12:45Seattle/Tacoma Intl
₹ 122,048
Qatar Airways
1 Sept
SEA10:40Seattle/Tacoma Intl
27h 20m
2 stops
CCU02:30Kolkata Netaji S. Chandra
22 Oct
CCU04:00Kolkata Netaji S. Chandra
28h 26m
2 stops
SEA19:56Seattle/Tacoma Intl
₹ 122,428

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 7 August 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

Cheapest return flight

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sat 5/9

23:40-02:55

2 stops38h 45m

Kolkata Netaji S. Chandra

Wed 16/9

21:30-20:44

2 stops35h 44m

₹ 98,343

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Fri 4/9

23:41-20:30

2 stops32h 19m

Kolkata Netaji S. Chandra

Sun 18/10

21:30-22:38

2 stops37h 38m

₹ 101,865

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Wed 23/9

23:42-20:30

2 stops32h 18m

Kolkata Netaji S. Chandra

Sun 27/9

21:30-20:44

2 stops35h 44m

₹ 102,817

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 20/9

06:15-02:55

2 stops32h 10m

Kolkata Netaji S. Chandra

Sun 27/9

21:30-21:36

2 stops36h 36m

₹ 102,912

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Fri 2/10

10:59-02:55

2 stops27h 26m

Kolkata Netaji S. Chandra

Sun 4/10

21:30-20:43

2 stops35h 43m

₹ 104,055

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Mon 31/8

00:10-23:50

2 stops35h 10m

Kolkata Netaji S. Chandra

Wed 9/9

01:00-15:15

2 stops26h 45m

₹ 104,531

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Mon 4/1

00:10-23:50

2 stops34h 10m

Kolkata Netaji S. Chandra

Mon 22/2

00:50-13:55

2 stops26h 35m

₹ 104,816

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Tue 5/1

08:45-22:25

1 stop48h 10m

Kolkata Netaji S. Chandra

Tue 23/2

23:40-07:10

1 stop21h 00m

₹ 105,578
Fastest return journey

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 17/1

08:45-22:30

1 stop24h 15m

Kolkata Netaji S. Chandra

Sat 30/1

23:40-07:10

1 stop21h 00m

₹ 106,149

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Wed 2/9

23:45-20:30

2 stops32h 15m

Kolkata Netaji S. Chandra

Sun 18/10

21:30-22:38

2 stops37h 38m

₹ 106,339

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 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 ₹ 111,385 to ₹ 199,065.
The lowest price recently found on this route was ₹ 98,343.

What is the cheapest month to fly to Kolkata?

If you are unable to visit Kolkata during the month of March, then departing from Seattle during the month April is also very affordable. Most momondo users find prices during this month for around ₹ 94,344.

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 ₹ 110,354 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 ₹ 81,111 on momondo.

Can stopping save me money on Seattle to Kolkata flights?

You could potentially save up to 52% 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 August 2026, prices for Seattle to Kolkata flights are approximately 28% 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 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

Fastest flight time

20h 35m

Direct flights

None
The fastest flight from Seattle to Kolkata takes 20h 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 11621.6 km. Flights usually cover this in 20h 35m, 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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