$327 Flights from Seattle (SEAA) to Kolkata (CCU)

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Flight deals from Seattle to Kolkata

Looking for a cheap last-minute deal or the best round-trip flight from Seattle to Kolkata? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Seattle to Kolkata

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Kolkata flights are currently cheapest in February.

Seattle to Kolkata: Alternative routes

Compare routes from Seattle to Kolkata below. You may find an airport to fly into that's cheaper, faster, or easier than Kolkata.

Seattle to Kolkata: Flight information

The things to know before you go.
Cheapest flight found$327
Cheapest month to flyFebruary

Finding cheap flights from Seattle to Kolkata: Frequently asked questions

The best price we found for a round-trip flight from Seattle to Kolkata is $717. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seattle to Kolkata. But we found flights with one stop from $717.
There are no flights flying from Seattle to Kolkata, as of December 2025.
The cheapest month to fly from Seattle to Kolkata is usually February.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Kolkata Airport on Friday, February 27, 2026.
No airlines currently offer direct flights between Seattle and Kolkata Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kolkata but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Kolkata is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Kolkata is Singapore Airlines.

Traveling from Seattle to Netaji Subhas Chandra Bose Airport (CCU): What you need to know

  • There are a couple of main airports you can start your journey from in Seattle. Check out your options leaving from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base Airport (LKE) when searching for a flight from Seattle to Netaji Subhas Chandra Bose Airport (CCU).

  • Kolkata is 12 hours 30 minutes ahead of Seattle. Netaji Subhas Chandra Bose Airport is located in Kolkata, which runs on the UTC+5:30 timezone.

  • Get to the airport on time so you don't miss your flight from Seattle to CCU. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the mad dash to your gate.

  • With more people on the move during peak seasons, aim to get to your terminal even earlier. Two hours for domestic flights and up to four for international journeys will help you stay ahead of the crowds.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • We make it simple to find cheap flights from Seattle to CCU that include a stopover. To explore all your options departing from Seattle-Tacoma International Airport (SEA), deselect 'Direct flights only.' Then, select a flight that has a stop long enough to tour the city of your choice. Popular stopovers between SEA and CCU include:

    • Dubai Airport (DXB)

    • Changi International Airport (SIN)

    • Hamad International Airport (DOH)

  • Traveling from central Seattle to SEA takes around 55 minutes on public transport. If you ride-share, drive or grab a cab, you'll cover the 14 miles in 20 minutes or so, depending on traffic.

  • Catching an early flight from Seattle to Netaji Subhas Chandra Bose Airport? Avoid the stress of rushing to the terminal (and get some bonus sleep) by choosing one of these hotels close to Seattle-Tacoma International Airport:

  • 81.27% of flights departing from Seattle-Tacoma International Airport land at their destination on time. With its impressive on-time stats, delays are unlikely when taking off from SEA.

Lake Union Sea Plane Base Airport (LKE)

  • On public transport, you can travel from central Seattle to LKE in about 25 minutes. The terminal is roughly 2 miles away, and getting there by car takes approximately 10 minutes.

  • Start your vacation early with an additional night away from home. Before your Seattle to CCU flight, kick back in one of these hotels near Lake Union Sea Plane Base Airport:

About Netaji Subhas Chandra Bose Airport (CCU)

Getting from Netaji Subhas Chandra Bose Airport (CCU) to central Kolkata

  • Netaji Subhas Chandra Bose Airport to the center of Kolkata is roughly 8 miles. If you're taking a cab or renting a car, plan ahead to make your trip as smooth as possible. Journey times will vary depending on the time of day and traffic conditions.

  • When traveling by public transport, expect a journey of around 55 minutes.

How to find the cheapest flights from Seattle to Netaji Subhas Chandra Bose Airport (CCU)

  • $327 is currently the best price for a one-way ticket from Seattle to Netaji Subhas Chandra Bose Airport. A return flight starts from $717. These prices can change depending on availability and demand.

  • To find cheap flights from Seattle to CCU, book early. Airlines typically offer lower fares when flights first go on sale.

  • The 'Whole month' tool shows you the cheapest Seattle to Netaji Subhas Chandra Bose Airport tickets across every month. It's an easy way to snap up a bargain if your trip dates aren't set in stone.

  • Spend less time searching for cheap plane tickets from Seattle to CCU by creating a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.

  • Bag the best deal on a flight from Seattle to Netaji Subhas Chandra Bose Airport with the help of the filters. Pick your ideal arrival and departure times, airlines and number of stops. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best.'

The best time to fly from Seattle to Netaji Subhas Chandra Bose Airport (CCU)

  • Think about your travel style when deciding your trip dates. April is the quietest month to go to Kolkata. July is when most people book flights from Seattle to Netaji Subhas Chandra Bose Airport (CCU), which may be ideal if you'd rather travel when it's busy.

  • Lock in a Seattle to CCU plane ticket departing in April if you want to explore the city during its warmest month. Expect temperatures in Kolkata to range from 75ºF to 108ºF.

  • Search for cheap tickets from Seattle to Netaji Subhas Chandra Bose Airport in January if you like traveling in cooler conditions. Temperatures are at their lowest then, ranging between 59ºF and 84ºF.

More about Kolkata

  • Start your Kolkata trip off on the right foot by choosing the ideal place to stay. As soon as you've booked your flight from Seattle to Netaji Subhas Chandra Bose Airport, browse our range of accommodation options including:

  • Your Kolkata trip isn't complete without checking out the sights. Leading attractions worth exploring include Victoria Memorial, Howrah Bridge and Trip to Sundarbans.

Explore more of India

  • Jamshedpur is just one of the many cities in India waiting to be discovered once you've seen the sights of Kolkata. Around 140 miles away to the west, check out popular attractions including Mughal Garden, Rock Garden and Birla Temple.

  • Durgapur is another must-experience destination in India and is around 95 miles north-west of Kolkata. No journey is complete without visiting Jama Masjid, B-Zone Major Park and Ram Mandir.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.