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SEA - CCU

$490 Find Cheap Flights from Seattle to Kolkata - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$988
Typical prices: $1,012-$1,458
Singapore Airlines
Mon 2/12Wed 2/21
SEA - CCU • 1 stop
Cheapest one-way
$490
Typical prices: $643-$1,243
Multiple Airlines
Wed 1/10
SEA - CCU • 2 stops
When to book
18 weeks
in advance
Our data shows that travelers 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 layover airports
Singapore Changi (SIN)
Cheapest • Avg $1,290 (round-trip)
Doha Hamad Intl (DOH)
Shortest trip • 21h 06m (one-way)
Insights
Insights
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We hope you love your trip to Kolkata!
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Flight Deals

Cheap Flights from Seattle to Kolkata (SEA-CCU)

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

Recent round-trip flight deals from Seattle to Kolkata

Fri, Feb 12 - Sun, Feb 21
Multiple Airlines Logo
8:40 am - 10:25 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
24h 15m1 stop Singapore Changi
Multiple Airlines Logo
11:40 pm - 1:38 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
27h 28m2 stops Singapore Changi San Francisco
$988Multiple Airlines
Sun, Jan 17 - Sun, Jan 31
Multiple Airlines Logo
8:40 am - 10:30 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
24h 20m1 stop Singapore Changi
Multiple Airlines Logo
11:40 pm - 12:41 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
26h 31m2 stops Singapore Changi San Francisco
$988Multiple Airlines
Sun, Jan 17 - Sun, Feb 7
Multiple Airlines Logo
11:00 pm - 4:45 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
28h 15m2 stops New York John F Kennedy Intl Mumbai Chhatrapati Shivaji Intl
Multiple Airlines Logo
12:55 pm - 4:24 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
40h 59m2 stops New Delhi Indira Gandhi Intl New York John F Kennedy Intl
$1,047Multiple Airlines
Tue, Oct 20 - Mon, Nov 16
Air India Logo
9:28 am - 4:55 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
42h 57m2 stops New York John F Kennedy Intl Mumbai Chhatrapati Shivaji Intl
Air India Logo
7:00 am - 7:54 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
26h 24m2 stops New Delhi Indira Gandhi Intl San Francisco
$1,053Air India
Wed, Jan 27 - Sat, Feb 20
Singapore Airlines Logo
8:40 am - 10:25 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
72h 15m1 stop Singapore Changi
Singapore Airlines Logo
11:40 pm - 7:05 amCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
68h 55m1 stop Singapore Changi
$1,175Singapore Airlines
Sun, Jan 17 - Sun, Feb 7
Singapore Airlines Logo
8:40 am - 10:30 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
24h 20m1 stop Singapore Changi
Singapore Airlines Logo
11:40 pm - 7:05 amCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
44h 55m1 stop Singapore Changi
$1,190Singapore Airlines
Fri, Feb 12 - Sun, Feb 21
Singapore Airlines Logo
8:40 am - 10:25 pmSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
24h 15m1 stop Singapore Changi
Singapore Airlines Logo
11:40 pm - 7:05 amCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
44h 55m1 stop Singapore Changi
$1,198Singapore Airlines
Tue, Oct 20 - Sun, Nov 15
Qatar Airways Logo
4:25 pm - 2:10 amSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
21h 15m1 stop Doha Hamad Intl
Qatar Airways Logo
3:25 am - 7:54 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
29h 59m2 stops Doha Hamad Intl San Francisco
$1,393Qatar Airways
Thu, Oct 29 - Mon, Dec 7
Qatar Airways Logo
11:54 am - 1:55 amSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
25h 31m2 stops San Francisco Doha Hamad Intl
Qatar Airways Logo
3:25 am - 8:04 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
30h 09m2 stops Doha Hamad Intl San Francisco
$1,393Qatar Airways
Sun, Jan 17 - Sun, Feb 7
Qatar Airways Logo
1:30 pm - 1:55 amSEA  Seattle/Tacoma Intl-CCU Kolkata Netaji S. Chandra
46h 55m2 stops San Francisco Doha Hamad Intl
Qatar Airways Logo
3:25 am - 6:53 pmCCU  Kolkata Netaji S. Chandra-SEA Seattle/Tacoma Intl
28h 58m2 stops Doha Hamad Intl San Francisco
$1,400Qatar 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.

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’s the cheapest month to fly from Seattle to Kolkata?

•April is the cheapest month to fly from Seattle to Kolkata at $969 round-trip.
•December ($1,593) and June ($1,398) 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.

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Key details for Seattle to Kolkata flights

Low season

September

Cheapest flight

$490
Beat the crowds with an average 57% drop in travelers.
The most popular month to fly with an average 125% increase in travelers.
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 round-trip price

Your Seattle to Kolkata flight questions, answered

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

  • What cabin classes can I book on flights from Seattle to Kolkata?

    Three cabin classes are available on flights from Seattle to Kolkata:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Seattle to Kolkata?

    There are currently no nonstop flights available from Seattle to Kolkata. Flights with 1 layover take between 21h 06m and 27h 33m 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?

    Round-trip flights from Seattle to Kolkata range from $1,012 to $1,458, with an average of $1,193 over the past 12 months. Anything below $1,012 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 $1,193 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, round-trip prices on this route showed a wide range, from about $969 to $9,155. That means the highest observed fare was about 9x 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 lower than usual. Average one-way flight prices are about $821, which is 7% below 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) - 80% of one-stop connections
    • Doha Hamad Intl (DOH) - 17% of one-stop connections
    • Dubai Intl (DXB) - 3% 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 $1,100 round-trip on average, while Thursday is the most expensive at $1,308, a difference of $208.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

    Flying via Doha Hamad Intl (DOH) gives the shortest average 1-stop total travel time at 21h 06m, compared with 23h 16m via Singapore Changi (SIN) and 27h 33m 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 $1,100, about $208 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 $969 round-trip in that month - typically $624 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Kolkata Netaji S. Chandra Airport.

    • Holiday Inn Express Kolkata Airport By IHG
    • Treebo Hoops - Airport, Vip Road
    • Ethnotel, Kolkata Airport
  • 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 rental

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