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Cheap flights from Seattle to Kolkata from ₹ 41,161

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 15/9. 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
23:55 - 20:30
SEA
-
CCU
32h 05m
2 stops
Etihad Airways Logo
03:50 - 20:42
CCU
-
SEA
53h 22m
2 stops
₹ 104,507Etihad Airways
Mon, 14 Sep - Sat, 26 Sep
Singapore Airlines Logo
08:45 - 22:25
SEA
-
CCU
24h 10m
1 stop
Singapore Airlines Logo
23:40 - 07:10
CCU
-
SEA
21h 00m
1 stop
₹ 105,356Singapore Airlines
Wed, 18 Nov - Fri, 25 Dec
Etihad Airways Logo
23:55 - 20:30
SEA
-
CCU
32h 05m
2 stops
Etihad Airways Logo
03:50 - 20:42
CCU
-
SEA
53h 22m
2 stops
₹ 110,077Etihad Airways
Sat, 12 Sep - Sat, 26 Sep
Multiple Airlines Logo
19:15 - 11:50
SEA
-
CCU
28h 05m
2 stops
Multiple Airlines Logo
00:30 - 10:40
CCU
-
SEA
46h 40m
2 stops
₹ 116,307Multiple Airlines
Sat, 8 Aug - Thu, 13 Aug
Multiple Airlines Logo
19:15 - 14:25
SEA
-
CCU
30h 40m
2 stops
Multiple Airlines Logo
00:30 - 10:40
CCU
-
SEA
46h 40m
2 stops
₹ 116,496Multiple Airlines
Sat, 15 Aug - Thu, 20 Aug
Multiple Airlines Logo
12:35 - 23:20
SEA
-
CCU
46h 15m
2 stops
Multiple Airlines Logo
00:30 - 10:40
CCU
-
SEA
46h 40m
2 stops
₹ 122,255Multiple Airlines
Sat, 15 Aug - Sat, 5 Sep
Multiple Airlines Logo
13:50 - 09:40
SEA
-
CCU
31h 20m
2 stops
Multiple Airlines Logo
18:45 - 17:43
CCU
-
SEA
35h 28m
2 stops
₹ 124,143Multiple Airlines
Fri, 11 Sep - Sun, 27 Sep
Multiple Airlines Logo
19:05 - 12:25
SEA
-
CCU
27h 50m
2 stops
Multiple Airlines Logo
00:30 - 17:10
CCU
-
SEA
30h 10m
2 stops
₹ 126,409Multiple Airlines
Wed, 18 Nov - Thu, 24 Dec
KLM Logo
13:30 - 09:10
SEA
-
CCU
31h 10m
2 stops
KLM Logo
21:40 - 11:33
CCU
-
SEA
26h 23m
2 stops
₹ 126,881KLM
Wed, 22 Jul - Wed, 29 Jul
Multiple Airlines Logo
19:05 - 22:10
SEA
-
CCU
37h 35m
2 stops
Multiple Airlines Logo
00:30 - 17:10
CCU
-
SEA
30h 10m
2 stops
₹ 127,542Multiple Airlines
Wed, 18 Nov - Thu, 24 Dec

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Qatar Airways flights from Seattle to Kolkata

Our best Qatar Airways deals on Seattle to Kolkata flight tickets
Qatar Airways
15 Aug
SEA16:25Seattle/Tacoma Intl
21h 35m
1 stop
CCU02:30Kolkata Netaji S. Chandra
6 Sept
CCU04:00Kolkata Netaji S. Chandra
21h 15m
1 stop
SEA12:45Seattle/Tacoma Intl
₹ 132,262
Qatar Airways
15 Aug
SEA07:03Seattle/Tacoma Intl
30h 57m
2 stops
CCU02:30Kolkata Netaji S. Chandra
6 Sept
CCU04:00Kolkata Netaji S. Chandra
21h 15m
1 stop
SEA12:45Seattle/Tacoma Intl
₹ 135,944
Qatar Airways
12 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
₹ 136,321

Singapore Airlines flights from Seattle to Kolkata

Our best Singapore Airlines deals on Seattle to Kolkata flight tickets
Singapore Airlines
18 Nov
SEA08:45Seattle/Tacoma Intl
24h 10m
1 stop
CCU22:25Kolkata Netaji S. Chandra
25 Dec
CCU23:40Kolkata Netaji S. Chandra
21h 00m
1 stop
SEA07:10Seattle/Tacoma Intl
₹ 105,356
Singapore Airlines
18 Nov
SEA08:45Seattle/Tacoma Intl
24h 10m
1 stop
CCU22:25Kolkata Netaji S. Chandra
25 Dec
CCU23:40Kolkata Netaji S. Chandra
21h 00m
1 stop
SEA07:10Seattle/Tacoma Intl
₹ 127,730
Singapore Airlines
20 Nov
SEA08:45Seattle/Tacoma Intl
24h 10m
1 stop
CCU22:25Kolkata Netaji S. Chandra
25 Dec
CCU23:40Kolkata Netaji S. Chandra
21h 00m
1 stop
SEA07:10Seattle/Tacoma Intl
₹ 130,751

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 25 June 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 - CCU

SEACCU

Seattle/Tacoma Intl

Mon 14/9

23:55-20:30

2 stops32h 05m

Kolkata Netaji S. Chandra

Sat 26/9

03:50-20:42

2 stops53h 22m

₹ 104,507
Fastest return journey

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 18/11

08:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Fri 25/12

23:40-07:10

1 stop21h 00m

₹ 105,356

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 12/9

23:55-20:30

2 stops32h 05m

Kolkata Netaji S. Chandra

Sat 26/9

03:50-20:42

2 stops53h 22m

₹ 110,077

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 8/8

19:15-11:50

2 stops28h 05m

Kolkata Netaji S. Chandra

Thu 13/8

00:30-10:40

2 stops46h 40m

₹ 116,307

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 15/8

19:15-14:25

2 stops30h 40m

Kolkata Netaji S. Chandra

Thu 20/8

00:30-10:40

2 stops46h 40m

₹ 116,496

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 15/8

12:35-23:20

2 stops46h 15m

Kolkata Netaji S. Chandra

Sat 5/9

00:30-10:40

2 stops46h 40m

₹ 122,255

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 11/9

13:50-09:40

2 stops31h 20m

Kolkata Netaji S. Chandra

Sun 27/9

18:45-17:43

2 stops35h 28m

₹ 124,143

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 18/11

19:05-12:25

2 stops27h 50m

Kolkata Netaji S. Chandra

Thu 24/12

00:30-17:10

2 stops30h 10m

₹ 126,409

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 22/7

13:30-09:10

2 stops31h 10m

Kolkata Netaji S. Chandra

Wed 29/7

21:40-11:33

2 stops26h 23m

₹ 126,881

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 18/11

19:05-22:10

2 stops37h 35m

Kolkata Netaji S. Chandra

Thu 24/12

00:30-17:10

2 stops30h 10m

₹ 127,542

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?

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 March is also very affordable. Most momondo users find prices during this month for around ₹ 87,042.

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 ₹ 104,641 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 ₹ 79,867 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 June 2026, prices for Seattle to Kolkata flights are approximately 6% 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

21h 35m

Direct flights

None
The fastest flight from Seattle to Kolkata takes 21h 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 21h 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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