SEA - CCU

£387 Find Cheap Flights from Seattle to Kolkata – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 34% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return flight
£1,027
Typical prices: £759-£1,093
KLM
Fri 5/1Fri 23/2
SEA - CCU • 2 stops
Cheapest one-way flight
£387
Typical prices: £482-£932
Singapore Airlines
Mon 26/2
SEA - CCU • 1 stop
When to book
18 weeks
in advance
Our data shows that travellers who book at least 18 weeks in advance save around 42% compared to booking last minute.
Insights
Insights
When to travel
April
Cheapest • 19% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Singapore Changi (SIN)
Cheapest • Avg £986 (return)
Doha Hamad Intl (DOH)
Shortest trip • 21h 09m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Kolkata!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Kolkata (SEA-CCU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seattle to Kolkata

Tue, 5 Jan - Tue, 23 Feb
KLM Logo
16:05 - 08:45SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
27h 10m2 stops Paris Charles de Gaulle Bengaluru Intl
KLM Logo
19:10 - 11:47CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
30h 07m2 stops Bengaluru Intl Amsterdam Schiphol
£1,027KLM
Wed, 20 Jan - Wed, 3 Mar
Turkish Airlines Logo
19:05 - 12:50SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
28h 15m2 stops Istanbul Mumbai Chhatrapati Shivaji Intl
Turkish Airlines Logo
20:15 - 17:10CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
34h 25m2 stops New Delhi Indira Gandhi Intl Istanbul
£1,032Turkish Airlines
Sun, 29 Nov - Wed, 9 Dec
Multiple Airlines Logo
00:10 - 16:15SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
26h 35m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
07:00 - 18:10CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
48h 40m2 stops New Delhi Indira Gandhi Intl Taipei City Taiwan Taoyuan Intl
£1,033Multiple Airlines
Sun, 3 Jan - Tue, 2 Mar
Turkish Airlines Logo
19:05 - 12:50SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
28h 15m2 stops Istanbul Mumbai Chhatrapati Shivaji Intl
Turkish Airlines Logo
18:55 - 17:10CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
35h 45m2 stops Mumbai Chhatrapati Shivaji Intl Istanbul
£1,034Turkish Airlines
Sun, 29 Nov - Wed, 9 Dec
Multiple Airlines Logo
00:10 - 16:15SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
26h 35m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
07:00 - 17:30CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
48h 00m2 stops New Delhi Indira Gandhi Intl Taipei City Taiwan Taoyuan Intl
£1,052Multiple Airlines
Wed, 20 Jan - Mon, 1 Mar
Turkish Airlines Logo
19:05 - 15:40SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
31h 05m2 stops Istanbul Mumbai Chhatrapati Shivaji Intl
Turkish Airlines Logo
21:30 - 17:10CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
33h 10m2 stops Mumbai Chhatrapati Shivaji Intl Istanbul
£1,055Turkish Airlines
Sat, 2 Jan - Mon, 1 Mar
Turkish Airlines Logo
19:05 - 12:50SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
28h 15m2 stops Istanbul Mumbai Chhatrapati Shivaji Intl
Turkish Airlines Logo
21:30 - 17:10CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
33h 10m2 stops Mumbai Chhatrapati Shivaji Intl Istanbul
£1,056Turkish Airlines
Sun, 3 Jan - Sun, 21 Feb
Qatar Airways Logo
15:50 - 01:55SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
20h 35m1 stop Doha Hamad Intl
Qatar Airways Logo
03:25 - 11:40CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
21h 45m1 stop Doha Hamad Intl
£1,068Qatar Airways
Tue, 19 Jan - Fri, 26 Feb
Turkish Airlines Logo
19:05 - 12:50SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
28h 15m2 stops Istanbul Mumbai Chhatrapati Shivaji Intl
Turkish Airlines Logo
18:55 - 17:10CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
35h 45m2 stops Mumbai Chhatrapati Shivaji Intl Istanbul
£1,082Turkish Airlines
Sun, 3 Jan - Sun, 21 Feb
Qatar Airways Logo
15:50 - 01:55SEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
20h 35m1 stop Doha Hamad Intl
Qatar Airways Logo
03:25 - 19:57CCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
30h 02m2 stops Doha Hamad Intl San Francisco
£1,088Qatar Airways
Booking Insights

Price, demand, and travel trends for Seattle to Kolkata flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Seattle to Kolkata?

Return flights from Seattle to Kolkata typically range from £759 to £1,093. The lowest price found in the past 5 days was £1,027 on KLM.

What's the cheapest day of the week to fly from Seattle to Kolkata?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Seattle to Kolkata. It's 8% cheaper than the average day, while Thursday is the most expensive, with prices 9% higher.

What is the cheapest month to fly from Seattle to Kolkata?

•April is the cheapest month to fly from Seattle to Kolkata at £726 return.
•December (£1,194) and June (£1,048) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 64% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Kolkata the cheapest?

Flights from Seattle to Kolkata are cheapest 18 weeks before departure. Booking in this window typically costs about 42% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Seattle to Kolkata flights

Low season

September

Cheapest flight

£387
Beat the crowds with an average 52% drop in traveller numbers.
The most popular month to fly with an average 79% increase in traveller numbers.
One-way flight from Seattle to Kolkata

When to book flights from Seattle to Kolkata

Are your dates flexible? Find out the best times to travel from Seattle to Kolkata based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Seattle to Kolkata flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • How long is a flight from Seattle to Kolkata?

    There are currently no direct flights available from Seattle to Kolkata. Flights with 1 stopover take between 21h 09m and 27h 52m in total, depending on the connection.

  • Do I need a passport to fly from Seattle to Kolkata?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Seattle to Kolkata flight?

    Return flights from Seattle to Kolkata range from £759 to £1,093, with an average of £894 over the past 12 months. Anything below £759 counts as a good deal.

  • How expensive are last-minute Seattle to Kolkata flights?

    Last-minute fares on this route (booked within two weeks of departure) run 37% above the £894 route average. Book 18 weeks before departure for the lowest fares.

  • Have flight prices from Seattle to Kolkata changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £1,027 to £5,741. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Seattle to Kolkata looking right now?

    One-way fares from Seattle to Kolkata are currently higher than usual. Average one-way flight prices are about £1,215, which is 84% above the typical average for this route.

  • Which airports can I use when flying from Seattle to Kolkata?

    Flights from Seattle to Kolkata usually depart from Seattle/Tacoma Intl (SEA) and arrive at Kolkata Netaji S. Chandra (CCU).

  • Which airports do connecting flights from Seattle to Kolkata pass through?

    One-stop flights from Seattle to Kolkata most commonly connect through:

    • Singapore Changi (SIN) – 77% of one-stop connections
    • Doha Hamad Intl (DOH) – 22% of one-stop connections
    • Dubai Intl (DXB) – 0% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to Kolkata?

    Yes. Flexible dates can save you up to 16% on flights from Seattle to Kolkata. Monday is the cheapest departure day at £824 return on average, while Thursday is the most expensive at £980, a difference of £156.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Seattle to Kolkata?

    Flying via Doha Hamad Intl (DOH) gives the shortest average 1-stop total travel time of 21h 09m, compared to 23h 10m via Singapore Changi (SIN) and 27h 52m via Dubai Intl (DXB).

  • What is the time difference between Seattle and Kolkata?

    Kolkata is 12 hours ahead of Seattle (India Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What’s the easiest way to get from the city to Seattle–Tacoma International Airport?

    You can evade traffic and even save money on parking by purchasing a ticket or using an ORCA card to catch the Link light rail from downtown Seattle to the airport.

  • Where can I park at Seattle–Tacoma International Airport?

    Depending on your stay in Kolkata, you can use on-airport long-term parking lots like the General Parking on the 1st to 3rd floors and 5th to 8th floors. You can reserve covered parking lots at Sea-Tac’s official website.

  • Are there on-site car rental companies at Kolkata Airport?

    The only major car hire company on-site at Kolkata airport is Avis. However, a local car hire agency called Wenz has a counter in the Arrival Level operated by Wenz International Private Limited and offers a variety of choice vehicles.

  • Can I get a bus from Kolkata Airport to the city?

    Yes. The West Bengal Surface Transport Corporation (WBSTC) bus is a great alternative when you can’t hire a vehicle and need a cost-effective mode of transportation to downtown Kolkata from the airport. Services start at 8 am, and the last bus departs the airport at 9:30 pm.

Your guide to booking Seattle to Kolkata flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Thursday. On this route, Monday flights average £824, about £156 less than Thursday fares (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 42% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Kolkata trip for April. Fares historically average £726 return in that month – typically £468 less than the most expensive month, which is December (based on the last 12 months).
  • Also known as Kolkata Airport or Kolkata Netaji S. Chandra, Netaji Subhas Chandra Bose International (CCU) is the airport that serves the Capital of West Bengal state, India, Kolkata. If you’re traveling to India with a companion animal, consider using Air India, Jet Airways, and SpiceJet because they allow pets on board. At Seattle–Tacoma International Airport or Sea-Tac, pets must remain leashed except when visiting Pet Relief Areas on the Subway level of Concourse D, Mezzanine Level of Concourse S, the Mezzanine Level of Central Terminal, etc.
  • As the 10th-busiest airport in the U.S. that serves more than 36 million passengers per year, Seattle–Tacoma International Airport (SEA) can get very busy between 5 am to 7 am, 9 am to 11 am, and 4 pm to 6 pm. TSA recommends that travelers arrive 3h before their departure flight, so there’s ample time to navigate around the terminal, check-in, go through security, and find your gate.
  • If you arrive at Sea-Tac with time to spare before your flight to Kolkata, you can purchase a day pass to access The Club SEA in Concourse A and the Alaska Lounges in Concourses C, D and the North Satellite Terminal. Lounge facilities at Kolkata Airport are located in the Security Hold Areas of the Domestic and International Terminal.
  • Passengers that need to keep their kids entertained can head to Sea-Tac’s children’s play area near gate A, next door to Qdoba or use one of the seven lactation pods situated throughout the four Concourses. Located at Departure Level 3 and arrival Level 1 at Kolkata Airport are child care rooms available for traveling moms that need privacy to breastfeed, pump or change diapers.
  • While post-security wheelchair services are provided by your airline, Seattle–Tacoma International Airport, in conjunction with Prospect Airport Services, provides wheelchairs, including complimentary Meet and Assist services to passengers with disability. Communicating your wheelchair needs while booking your Kolkata tickets through KAYAK is advisable.

More options for your flight from Seattle to Kolkata

Complete your trip to Kolkata with a hotel stay or car hire

Car hire in Kolkata
Hotels in Kolkata
Holidays in Kolkata