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Cheap flights from Seattle to Kolkata from £538

SEA — CCU
20 Oct — 27 Oct1
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

Tue 17/1123:30 -
2 stops27h 15m
Mon 30/1120:55 -
2 stops58h 45m
Deal found 17/9£910
Mon 19/1019:15 -
2 stops31h 45m
Thu 19/1121:30 -
2 stops33h 10m
Deal found 17/9£932
Tue 10/1100:10 -
2 stops26h 35m
Mon 30/1120:55 -
2 stops58h 45m
Deal found 18/9£932
Thu 12/1100:10 -
2 stops26h 35m
Mon 30/1122:30 -
2 stops57h 10m
Deal found 16/9£940
Sun 25/1015:25 -
2 stops29h 00m
Wed 17/221:05 -
2 stops28h 12m
Deal found 15/9£941
Tue 27/1015:25 -
2 stops27h 40m
Wed 17/219:10 -
2 stops30h 07m
Deal found 15/9£956
Mon 26/1015:25 -
2 stops29h 00m
Mon 16/1121:30 -
2 stops29h 50m
Deal found 17/9£971
Wed 21/1013:45 -
2 stops30h 00m
Mon 16/1121:30 -
2 stops29h 50m
Deal found 17/9£972
Wed 21/1013:45 -
2 stops29h 20m
Wed 18/1121:05 -
2 stops28h 12m
Deal found 17/9£993
Thu 22/1013:45 -
2 stops29h 20m
Mon 16/1121:30 -
2 stops29h 50m
Deal found 17/9£994
Thu 19/1123:30 -
2 stops27h 15m
Sat 5/1220:55 -
2 stops58h 45m
Deal found 18/9£999
Mon 19/1019:15 -
2 stops31h 45m
Wed 18/1118:45 -
2 stops35h 55m
Deal found 17/9£1,007

Find flight deals from Seattle to Kolkata

Round-trip from

£814

One-way from

£538

Popular in

December

Cheapest in

April

Average price

£889
31/1-22/2
  • 31/1-22/2
  • 4 total stops
  • 104h 50m total
  • Seattle to Kolkata
Search Deals
Etihad Airways
  • Etihad Airways
  • 19/10-31/12
  • 2 total stops
  • 32h 05m total
  • Seattle to Kolkata
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

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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Depart

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Price

Cheapest return flight

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Wed 21/10

23:55-02:55

2 stops38h 30m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

£538

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Mon 19/10

23:55-20:30

2 stops32h 05m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

£538

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Tue 20/10

23:55-02:55

2 stops38h 30m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

£538

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 27/9

16:25-02:30

1 stop21h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

£573

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sat 26/9

16:25-02:30

1 stop21h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

£602

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Fri 25/9

16:25-02:30

1 stop21h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

£666

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Fri 23/10

17:45-08:10

2 stops49h 55m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

£762

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 31/1

00:10-11:45

2 stops46h 05m

Kolkata Netaji S. Chandra

Mon 22/2

20:55-18:10

2 stops58h 45m

£814
Fastest return journey

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 4/10

16:25-02:10

1 stop21h 15m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

£889

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Tue 17/11

23:30-16:15

2 stops27h 15m

Kolkata Netaji S. Chandra

Mon 30/11

19:05-18:10

2 stops60h 35m

£910

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 20 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, April is the cheapest month in which you can book a flight from Seattle to Kolkata (average of £740). Flying from Seattle to Kolkata in December is currently the most expensive (average of £1,219). 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 £633 and £1,151 in January.
The cheapest return price found within the last 5 days was £814 on Multiple Airlines (31 Jan–22 Feb).

Related info for your journey

  • How long is the flight from Seattle to Kolkata?

    Turkish Airlines can get you from Seattle to Kolkata in just under 28h 15m. Your travel time can differ by up to . The distance between Seattle and Kolkata is about 7224 mi.

  • 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, April is the cheapest month in which you can book a flight from Seattle to Kolkata (average of £740). Flying from Seattle to Kolkata in December is currently the most expensive (average of £1,219). 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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Kolkata Netaji S. Chandra Airport car hire

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