$515 Cheap Flights from Kolkata (CCU) to Seattle (SEA)

View $515 flight on Mon, Dec 15, 2025Opens in a new window

Popular airlines from Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Kolkata to Seattle (CCU-SEA)

Prices were available within the past 7 days and start at $515 for one-way flights and $902 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air India
Mon, Dec 15 - Sun, Apr 5
CCU
Kolkata
SEA
Seattle
$902 Roundtrip, found 2 days ago
$902
Roundtrip
found 2 days ago
Select Air India flight, departing Mon, Dec 15 from Kolkata to Seattle, returning Sun, Apr 5, priced at $902 found 2 days ago
Air India
Mon, Dec 15 - Sun, Apr 5
CCU
Kolkata
SEA
Seattle
$941 Roundtrip, found 2 days ago
$941
Roundtrip
found 2 days ago
Select Air India flight, departing Mon, Dec 15 from Kolkata to Seattle, returning Sun, Apr 5, priced at $941 found 2 days ago
Air India
Tue, Nov 11 - Tue, Jan 13
CCU
Kolkata
SEA
Seattle
$955 Roundtrip, found 5 days ago
$955
Roundtrip
found 5 days ago
Select Air India flight, departing Tue, Nov 11 from Kolkata to Seattle, returning Tue, Jan 13, priced at $955 found 5 days ago
Air India
Mon, Nov 10 - Mon, Apr 13
CCU
Kolkata
SEA
Seattle
$960 Roundtrip, found 1 day ago
$960
Roundtrip
found 1 day ago
Select Air India flight, departing Mon, Nov 10 from Kolkata to Seattle, returning Mon, Apr 13, priced at $960 found 1 day ago
Air India
Tue, Nov 11 - Tue, Jan 13
CCU
Kolkata
SEA
Seattle
$965 Roundtrip, found 5 days ago
$965
Roundtrip
found 5 days ago
Select Air India flight, departing Tue, Nov 11 from Kolkata to Seattle, returning Tue, Jan 13, priced at $965 found 5 days ago
Air India
Tue, Nov 11 - Tue, Jan 13
CCU
Kolkata
SEA
Seattle
$965 Roundtrip, found 5 days ago
$965
Roundtrip
found 5 days ago
Select Air India flight, departing Tue, Nov 11 from Kolkata to Seattle, returning Tue, Jan 13, priced at $965 found 5 days ago
Singapore Airlines
Fri, Feb 13 - Sat, Feb 28
CCU
Kolkata
SEA
Seattle
$995 Roundtrip, found 1 day ago
$995
Roundtrip
found 1 day ago
Select Singapore Airlines flight, departing Fri, Feb 13 from Kolkata to Seattle, returning Sat, Feb 28, priced at $995 found 1 day ago
Air France
Mon, Feb 16 - Mon, Mar 2
CCU
Kolkata
SEA
Seattle
$1,071 Roundtrip, found 4 days ago
$1,071
Roundtrip
found 4 days ago
Select Air France flight, departing Mon, Feb 16 from Kolkata to Seattle, returning Mon, Mar 2, priced at $1,071 found 4 days ago
KLM
Sun, Feb 15 - Fri, Mar 6
CCU
Kolkata
SEA
Seattle
$1,071 Roundtrip, found 7 hours ago
$1,071
Roundtrip
found 7 hours ago
Select KLM flight, departing Sun, Feb 15 from Kolkata to Seattle, returning Fri, Mar 6, priced at $1,071 found 7 hours ago
Virgin Atlantic
Sun, Nov 23 - Thu, Dec 4
CCU
Kolkata
SEA
Seattle
$1,166 Roundtrip, found 1 day ago
$1,166
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Sun, Nov 23 from Kolkata to Seattle, returning Thu, Dec 4, priced at $1,166 found 1 day ago

Find the cheapest month to fly from Kolkata (CCU) to Seattle (SEA)

September is typically the cheapest month to fly

From $947 - $1,468 per traveler.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $1,208
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $1,208

Frequently asked questions

How much does a flight from Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle - Tacoma Intl. Airport (SEA) cost?
Grab a cheap one-way flight from $515 or cheap return flight from $902 from Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest month to fly from CCU to SEA is December, when there's less demand. Off-peak season is generally when airlines offer better prices between these airports.
How many flights per day from Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle - Tacoma Intl. Airport (SEA)?
Nonstop flights from Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CCU to SEA?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid possible delays on the Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle - Tacoma Intl. Airport (SEA) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute fares from CCU to SEA are usually more expensive. For the cheapest rates, start searching for flights early. That said, if your travel plans are flexible, it's possible to land a cheap ticket right before your journey.
Is it cheaper to book a CCU to SEA flight and hotel package?
You can save money by securing a CCU to SEA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After selecting your ideal flights and accommodations, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from Netaji Subhash Chandra Bose Intl. Airport (CCU) to Seattle - Tacoma Intl. Airport (SEA)?
In most cases, you're able to cancel or reschedule your CCU to SEA flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you want further details, go to our Customer Service portal.

Travel information

Origin airport
Netaji Subhash Chandra Bose Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air France, British Airways, Emirates, Japan Airlines, KLM, Lufthansa, Qatar Airways, Singapore Airlines, Turkish Airlines, Virgin Atlantic
Roundtrip price
$902
Distance
7230 mi

Book with confidence

Kolkata to Seattle Flights

The cheapest times to fly from Kolkata to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kolkata to Seattle are during the month of December. You can find some of the cheapest flights from Kolkata to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kolkata to Seattle

Sunday is one of the best days to book for cheap flights from Kolkata to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Kolkata to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kolkata to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $515 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kolkata to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kolkata to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Kolkata to Seattle Flights

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*Available to One Key members.