Cheap Flights from Seattle to Kolkata

Compare Seattle to Kolkata flight deals

Find the cheapest month or even day of the year to fly to Kolkata

Book the best Kolkata fare with no extra fees

Flight deals from Seattle to Kolkata

Looking for a cheap last-minute deal or the best return flight from Seattle to Kolkata? Find the lowest prices on one-way and return 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 March.

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 foundC$502
Cheapest month to flyMarch

Finding cheap flights from Seattle to Kolkata: Frequently asked questions

The best price we found for a return flight from Seattle to Kolkata is C$995. 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 C$995.
As of September 2025, there are no flights flying from Seattle to Kolkata.
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 Tuesday, February 3, 2026.
No airlines currently offer direct flights between Seattle and Kolkata Airport. Most routes have one or more stops.
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 .

Travelling from Seattle to Netaji Subhas Chandra Bose Airport (CCU): what you need to know

  • Get your vacation planning started by considering where you'll take off for your flight from Seattle to Netaji Subhas Chandra Bose Airport (CCU). Seattle-Tacoma International Airport (SEA) and Lake Union Sea Plane Base (LKE) are Seattle's main airports.

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

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you'll have plenty of time to board your flight from Seattle to CCU.

  • July is a peak travel month. If you're heading away then or around a major holiday like Thanksgiving, Memorial Day or Christmas, turn up even earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international journeys.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • A stopover is the perfect opportunity to break up your trip — and perhaps even tour another city. When browsing flights from Seattle to CCU departing from Seattle-Tacoma International Airport (SEA), uncheck the 'Direct flights only' box to see where you can visit along the way. Top options include:

    • Dubai Airport (DXB)

    • Changi International Airport (SIN)

    • Hamad International Airport (DOH)

  • From the centre of Seattle, SEA is around 23 kilometres away. Use navigation apps or visit the official airport website to work out the best way to reach the terminal.

  • Want a handy hotel close to Seattle-Tacoma International Airport? If you're catching an early flight from Seattle to Netaji Subhas Chandra Bose Airport, these stays will put you moments from your departure lounge:

Lake Union Sea Plane Base (LKE)

  • Visit friends or family or just take a moment to stretch your legs with a stopover. If you'd like to split up your flight from Seattle to Netaji Subhas Chandra Bose Airport, check out these options when heading out from Lake Union Sea Plane Base:

    • Hamad International Airport (DOH)

    • Dubai Airport (DXB)

    • Changi International Airport (SIN)

  • On public transport, you can travel from central Seattle to LKE in around 23 minutes. The terminal is roughly 3 kilometres away, and making the journey by car takes approximately 11 minutes.

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

About Netaji Subhas Chandra Bose Airport (CCU)

  • Consider booking a hotel near CCU if you're catching a late flight from Seattle to Netaji Subhas Chandra Bose Airport. Pick one of these accommodation options and avoid the hassle of a long transfer:

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

  • Netaji Subhas Chandra Bose Airport to the centre of Kolkata takes about 40 minutes in a car. It's approximately 16 kilometres away. See what options are available, such as car rentals, cabs or ride-sharing services.

  • Getting to the centre on public transport will take you around 57 minutes.

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

  • C$502 is the cheapest price we've found for a one-way ticket from Seattle to Netaji Subhas Chandra Bose Airport. Return flights start from C$995. Prices may vary depending on availability at the time of booking.

  • We suggest booking as soon as possible to lock in flight tickets from Seattle to CCU. You're more likely to land a great deal and have a wider selection of flight times and dates.

  • The 'Whole month' search function shows you the cheapest tickets from Seattle to Netaji Subhas Chandra Bose Airport across the entire month. It's a great way to snap up a bargain if your travel plans are flexible.

  • Set up a Price Alert and keep track of changes on this route through push notifications or email. You'll know straight away when prices fall. Timing matters when searching for flight tickets from Seattle to CCU.

  • Make the most of the filters to find your ideal journey. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Seattle to Netaji Subhas Chandra Bose Airport, use the 'Sort by' tool. You can also filter by arrival and departure times, airline, and journey duration.

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

  • It's time to plan your travel dates for your flight from Seattle to Netaji Subhas Chandra Bose Airport. July is the most popular month to travel to Kolkata. If you want a more relaxed atmosphere, go in April.

  • Think about the type of weather that'll suit your plans for Kolkata. April is known as the warmest month. Lock in your flights from Seattle to CCU during then and you can expect temperatures of between 24ºC and 42ºC.

  • Visit in January for cooler conditions. Temperatures average between 15ºC and 29ºC. However, this destination promises a good time whenever you book your cheap flights from Seattle to Netaji Subhas Chandra Bose Airport.

More about Kolkata

  • When it comes to looking for somewhere to rest your head, you'll find the most popular stays in Kolkata right here. Check out these hotels after locking in your flight from Seattle to Netaji Subhas Chandra Bose Airport:

  • One of the best ways to experience Kolkata is to explore its popular attractions. Essential stops include Victoria Memorial, Howrah Bridge and Indian Museum.

Complete your Kolkata trip with a car rental

  • Finding you a cheap flight from Seattle to Netaji Subhas Chandra Bose Airport isn't our only party trick. Browse our car rentals in Kolkata and explore at your own pace. We search for deals from trusted car rental providers and put them all in one place. You can instantly compare offers and then book with no fees.

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