Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Kolkata from $509

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Kolkata departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Seattle to Kolkata

Cheap round-trip flights

Singapore Airlines Logo
10:15 am - 10:15 pmSEA-CCU
23h 30m1 stop
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
21h 00m1 stop
$643Singapore Airlines
Find Deal
Tue, Sep 9 - Thu, Nov 6
Singapore Airlines Logo
9:45 am - 10:25 pmSEA-CCU
24h 10m1 stop
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
21h 00m1 stop
$710Singapore Airlines
Find Deal
Tue, Oct 28 - Fri, Nov 14
Singapore Airlines Logo
3:50 pm - 10:25 pmSEA-CCU
42h 05m2 stops
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
21h 00m1 stop
$735Singapore Airlines
Find Deal
Tue, Oct 28 - Fri, Nov 14
Singapore Airlines Logo
10:15 am - 10:15 pmSEA-CCU
47h 30m1 stop
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
21h 00m1 stop
$759Singapore Airlines
Find Deal
Tue, Sep 16 - Wed, Nov 5
Singapore Airlines Logo
10:15 am - 10:15 pmSEA-CCU
23h 30m1 stop
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
21h 00m1 stop
$762Singapore Airlines
Find Deal
Tue, Oct 14 - Sat, Nov 15
Singapore Airlines Logo
6:05 pm - 10:15 pmSEA-CCU
39h 40m2 stops
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
21h 00m1 stop
$778Singapore Airlines
Find Deal
Tue, Sep 16 - Wed, Nov 5
Singapore Airlines Logo
7:00 am - 10:15 pmSEA-CCU
26h 45m2 stops
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
21h 00m1 stop
$843Singapore Airlines
Find Deal
Tue, Oct 14 - Sat, Nov 15
Singapore Airlines Logo
3:50 pm - 10:25 pmSEA-CCU
42h 05m2 stops
Singapore Airlines Logo
11:40 pm - 9:55 pmCCU-SEA
35h 45m2 stops
$899Singapore Airlines
Find Deal
Tue, Oct 28 - Fri, Nov 14
 Logo
1:15 am - 1:35 amSEA-CCU
35h 50m2 stops
 Logo
2:35 am - 3:05 pmCCU-SEA
26h 00m2 stops
Mon, Oct 13 - Fri, Nov 14
 Logo
12:45 am - 1:35 amSEA-CCU
36h 20m2 stops
 Logo
2:35 am - 3:05 pmCCU-SEA
26h 00m2 stops
Fri, Oct 31 - Mon, Dec 1

Singapore Airlines flights from Seattle to Kolkata

Our best Singapore Airlines deals on Seattle to Kolkata flight tickets
Singapore Airlines
Sep 9
SEA10:15 amSeattle/Tacoma Intl
23h 30m
1 stop
CCU10:15 pmKolkata Netaji S. Chandra
Nov 6
CCU11:40 pmKolkata Netaji S. Chandra
21h 00m
1 stop
SEA7:10 amSeattle/Tacoma Intl
Singapore Airlines
Oct 28
SEA9:45 amSeattle/Tacoma Intl
24h 10m
1 stop
CCU10:25 pmKolkata Netaji S. Chandra
Nov 14
CCU11:40 pmKolkata Netaji S. Chandra
21h 00m
1 stop
SEA7:10 amSeattle/Tacoma Intl
Singapore Airlines
Oct 28
SEA3:50 pmSeattle/Tacoma Intl
42h 05m
2 stops
CCU10:25 pmKolkata Netaji S. Chandra
Nov 14
CCU11:40 pmKolkata Netaji S. Chandra
21h 00m
1 stop
SEA7:10 amSeattle/Tacoma Intl

See travel insights to Kolkata from

How to get the cheapest flight ticket from Seattle to Kolkata

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Kolkata?

The month of September is, on average, the cheapest month to fly to Kolkata from Seattle, with most prices found around $823. If you aren’t able to travel during the month of September, then book flights to Kolkata from Seattle during February instead. Flights to Kolkata in February, while not as cheap as those in September, still average around $959.

What is the cheapest day to depart on your flight to Kolkata?

On average, the least expensive day to fly to Kolkata from Seattle is on a Friday. momondo users have found tickets for Friday departures for as low as $1,042. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Kolkata on Sunday is $1,676.

What is the cheapest time of day to depart on your flight to Kolkata?

In the evening is the cheapest time of day to fly from Seattle to Kolkata when you can find flight prices for as low as $1,141. Flying to Kolkata in the evening is an ideal time because this is during off-peak travel hours. Flights to Kolkata are more costly at noon, with an average ticket price of $1,560. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Seattle/Tacoma Intl to Kolkata Netaji S. Chandra flight route?

Fly from Seattle/Tacoma Intl to Kolkata Netaji S. Chandra for the best Seattle/Tacoma Intl - Kolkata Netaji S. Chandra flight prices

How far in advance should I book a flight to Kolkata?

You are more likely to see cheaper flights to Kolkata from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Kolkata for around $1,248 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kolkata from Seattle for as low as $983 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Kolkata Netaji S. Chandra flights?

There are 1 cabin classes available to choose from on Seattle/Tacoma Intl to Kolkata Netaji S. Chandra flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Kolkata flights?

You could potentially save up to 7% on your flight if you consider stops on a Seattle to Kolkata flight.

How have Seattle to Kolkata flight prices changed over time?

As of July 2025, prices for Seattle to Kolkata flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Kolkata

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Kolkata according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Kolkata (SEA to CCU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Kolkata

Best Price Found

$509

Fastest flight time

20h 35m

Direct flights

None

Airports in Kolkata

1 airport
The best one-way flight to Kolkata from Seattle in the past 72 hours is $509. The best round-trip flight deal from Seattle to Kolkata found on momondo in the last 72 hours is $643.
The fastest flight from Seattle to Kolkata takes 20h 35m
There are no direct flights from Seattle to Kolkata. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Kolkata Netaji S. Chandra Airport.
There is 1 airport near Kolkata: Kolkata Netaji S. Chandra (CCU)

  • How far is Seattle/Tacoma Intl to Kolkata Netaji S. Chandra by plane?

    The straight-line distance from Seattle/Tacoma Intl to Kolkata Netaji S. Chandra is 7221.3 mi. 22h 55m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Kolkata Netaji S. Chandra Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Kolkata Netaji S. Chandra Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Kolkata Netaji S. Chandra Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Kolkata Netaji S. Chandra Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Kolkata Netaji S. Chandra Airport.

  • What documentation or ID do you need to fly to Kolkata Netaji S. Chandra Airport?

    The necessary travel and health documents for your Kolkata Netaji S. Chandra Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Kolkata?


Best airlines flying from Seattle to Kolkata

Compare and see reviews for airlines that fly from Seattle to Kolkata with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $769Free CancellationRating
8.1
1,324 reviews
Search Singapore Airlines flights
Turkish AirlinesPriceFrom $1,137Free CancellationRating
7.3
3,893 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,334Free CancellationRating
7.4
3,591 reviews
Search Qatar Airways flights
LufthansaPriceFrom $1,489Free CancellationRating
6.8
7,193 reviews
Search Lufthansa flights
EmiratesPriceFrom $1,497Free CancellationRating
8.1
3,288 reviews
Search Emirates flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Kolkata?

Finding the right flight to Kolkata from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Kolkata quick and easy, saving you time and money.

Can I find flights from Seattle to Kolkata with flexible booking policies on momondo?

Flights from Seattle to Kolkata with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Kolkata?

momondo provides multiple filters to help you find the best flight to Kolkata from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Kolkata right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Kolkata flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


An easier way to manage your Kolkata trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 7/14
Mon 7/21

Find better results for your trip to India

Airports servicing West Bengal