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Cheap flights from Seattle to Kolkata from £1,107

SEA — CCU
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Kolkata

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Kolkata

Sun 22/1114:35 -
2 stops28h 15m
Sun 6/1221:30 -
2 stops31h 13m
Deal found 2/11£1,200
Wed 18/1116:05 -
1 stop37h 25m
Tue 8/1209:20 -
1 stop41h 45m
Deal found 2/11£1,231
Wed 18/1116:05 -
1 stop37h 25m
Wed 2/1209:20 -
1 stop41h 45m
Deal found 2/11£1,242
Fri 6/1119:05 -
2 stops28h 05m
Thu 12/1118:55 -
2 stops35h 45m
Deal found 5/11£1,262
Thu 19/1116:05 -
1 stop37h 25m
Tue 8/1209:20 -
1 stop41h 45m
Deal found 2/11£1,268
Thu 19/1116:05 -
1 stop26h 05m
Fri 4/1220:35 -
1 stop30h 30m
Deal found 2/11£1,280
Mon 23/1119:05 -
2 stops55h 05m
Sun 6/1218:55 -
2 stops35h 45m
Deal found 2/11£1,289
Tue 3/1116:05 -
2 stops27h 10m
Tue 8/1221:30 -
2 stops31h 13m
Deal found 2/11£1,298
Wed 18/1116:05 -
1 stop37h 25m
Sat 5/1220:35 -
2 stops39h 38m
Deal found 2/11£1,310

Find flight deals from Seattle to Kolkata

Round-trip from

£1,024

Popular in

December

Cheapest in

June

Average price

£955
Turkish Airlines
  • Turkish Airlines
  • 12/1-26/1
  • 4 total stops
  • 61h 25m total
  • Seattle to Kolkata
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Highest demand for flights based on searches. 10% potential increase in price (£83 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£28 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Kolkata that are best for you.

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Cheapest return flight

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Thu 29/4

10:15-22:15

1 stop23h 30m

Kolkata Netaji S. Chandra

Mon 3/5

23:50-08:45

1 stop21h 25m

£1,107

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Thu 29/4

07:00-02:30

2 stops31h 00m

Kolkata Netaji S. Chandra

Mon 3/5

04:00-12:25

1 stop20h 55m

£1,206

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 10/1

19:05-12:50

2 stops28h 15m

Kolkata Netaji S. Chandra

Sat 23/1

20:15-17:10

2 stops34h 25m

£1,209

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Mon 23/11

16:05-19:00

1 stop37h 25m

Kolkata Netaji S. Chandra

Tue 8/12

09:20-13:35

1 stop41h 45m

£1,231

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Wed 18/11

16:05-19:00

1 stop37h 25m

Kolkata Netaji S. Chandra

Wed 2/12

09:20-13:35

1 stop41h 45m

£1,242

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 22/11

23:22-01:55

2 stops37h 03m

Kolkata Netaji S. Chandra

Sun 6/12

03:25-20:04

2 stops30h 09m

£1,327

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Wed 18/11

15:50-01:55

1 stop20h 35m

Kolkata Netaji S. Chandra

Sun 6/12

03:25-18:13

2 stops28h 18m

£1,332

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Fri 20/11

16:05-00:25

1 stop42h 50m

Kolkata Netaji S. Chandra

Sat 26/12

09:20-13:35

1 stop41h 45m

£1,766

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Thu 31/12

19:05-12:50

2 stops28h 15m

Kolkata Netaji S. Chandra

Sat 2/1

18:55-17:10

2 stops59h 45m

£1,869

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Wed 30/12

19:05-12:50

2 stops28h 15m

Kolkata Netaji S. Chandra

Sat 2/1

18:55-17:10

2 stops59h 45m

£1,869

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 14 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata from Seattle with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Kolkata

How far ahead should I book a flight from Seattle to Kolkata?

The price you pay for your flight from Seattle to Kolkata may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Kolkata?

Currently, June is the cheapest month in which you can book a flight from Seattle to Kolkata (average of £711). Flying from Seattle to Kolkata in December is currently the most expensive (average of £1,311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Seattle to Kolkata?

Airfare is typical for this route at the moment.

Seattle to Kolkata flights typically cost between £759 and £1,032 in January.
The cheapest return price found within the last 5 days was £1,024 on Turkish Airlines (9 Jan–26 Jan).

Related info for your journey

  • How long is the flight from Seattle to Kolkata?

    Singapore Airlines, Qatar Airways, and Emirates can get you from Seattle to Kolkata in just under 23h 30m. Your travel time can differ by up to 13h 55m. The distance between Seattle and Kolkata is about 7224 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Seattle to Kolkata that include hotel bookings?

    Yes. In addition to deals on Seattle to Kolkata flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Kolkata?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kolkata.

  • Can I find deals for business class flights from Seattle to Kolkata?

    Yes. Cheapflights offers flight deals from Seattle to Kolkata by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Kolkata?

    Currently, June is the cheapest month in which you can book a flight from Seattle to Kolkata (average of £711). Flying from Seattle to Kolkata in December is currently the most expensive (average of £1,311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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