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Cheap flights from Seattle to Kolkata from $474

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 4/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Kolkata

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Kolkata.
10:15 am - 10:15 pmSEA-CCU
23h 30m1 stop
11:30 pm - 8:45 amCCU-SEA
21h 45m1 stop
$735Singapore Airlines
Find Deal
Sat, Sep 6 - Mon, Oct 6
10:15 am - 10:15 pmSEA-CCU
23h 30m1 stop
11:40 pm - 7:10 amCCU-SEA
21h 00m1 stop
$829Singapore Airlines
Find Deal
Tue, Aug 19 - Mon, Feb 16
10:15 am - 10:15 pmSEA-CCU
23h 30m1 stop
3:50 am - 12:45 pmCCU-SEA
21h 25m1 stop
$1,208
Find Deal
Thu, May 8 - Wed, May 14
10:15 am - 10:15 pmSEA-CCU
23h 30m1 stop
11:30 pm - 6:27 pmCCU-SEA
31h 27m3 stops
$1,215
Find Deal
Thu, May 8 - Thu, May 15
11:25 pm - 2:50 amSEA-CCU
38h 55m2 stops
3:45 am - 10:12 pmCCU-SEA
54h 57m2 stops
$1,228Etihad Airways
Find Deal
Thu, Aug 21 - Thu, Sep 18
11:45 pm - 8:20 pmSEA-CCU
32h 05m2 stops
3:45 am - 10:12 pmCCU-SEA
30h 57m2 stops
$1,278Etihad Airways
Find Deal
Wed, Sep 10 - Sat, Oct 11
7:10 pm - 12:15 pmSEA-CCU
28h 35m2 stops
10:30 pm - 5:15 pmCCU-SEA
31h 15m2 stops
$1,297Turkish Airlines
Find Deal
Fri, May 9 - Fri, May 16
7:10 pm - 12:15 pmSEA-CCU
28h 35m2 stops
10:30 pm - 5:15 pmCCU-SEA
31h 15m2 stops
$1,304Turkish Airlines
Find Deal
Sat, May 10 - Mon, May 12
2:15 pm - 9:00 amSEA-CCU
30h 15m2 stops
9:20 pm - 4:59 pmCCU-SEA
32h 09m2 stops
$1,422Lufthansa
Find Deal
Mon, May 5 - Tue, May 13
2:15 pm - 9:00 amSEA-CCU
30h 15m2 stops
9:20 pm - 4:59 pmCCU-SEA
32h 09m2 stops
$1,432Lufthansa
Find Deal
Sun, May 4 - Tue, May 13

Singapore Airlines flights from Seattle to Kolkata

Our best Singapore Airlines deals on Seattle to Kolkata flight tickets
Singapore Airlines
Sep 6
SEA10:15 amSeattle/Tacoma Intl
23h 30m
1 stop
CCU10:15 pmKolkata Netaji S. Chandra
Oct 6
CCU11:30 pmKolkata Netaji S. Chandra
21h 45m
1 stop
SEA8:45 amSeattle/Tacoma Intl
Singapore Airlines
Aug 19
SEA10:15 amSeattle/Tacoma Intl
23h 30m
1 stop
CCU10:15 pmKolkata Netaji S. Chandra
Feb 16
CCU11:40 pmKolkata Netaji S. Chandra
21h 00m
1 stop
SEA7:10 amSeattle/Tacoma Intl
Singapore Airlines
Aug 17
SEA10:15 amSeattle/Tacoma Intl
23h 30m
1 stop
CCU10:15 pmKolkata Netaji S. Chandra
Sep 15
CCU11:30 pmKolkata Netaji S. Chandra
21h 45m
1 stop
SEA8:45 amSeattle/Tacoma Intl

Etihad Airways flights from Seattle to Kolkata

Our best Etihad Airways deals on Seattle to Kolkata flight tickets
Etihad Airways
Aug 21
SEA11:25 pmSeattle/Tacoma Intl
38h 55m
2 stops
CCU2:50 amKolkata Netaji S. Chandra
Sep 18
CCU3:45 amKolkata Netaji S. Chandra
54h 57m
2 stops
SEA10:12 pmSeattle/Tacoma Intl
Etihad Airways
Sep 10
SEA11:45 pmSeattle/Tacoma Intl
32h 05m
2 stops
CCU8:20 pmKolkata Netaji S. Chandra
Oct 11
CCU3:45 amKolkata Netaji S. Chandra
30h 57m
2 stops
SEA10:12 pmSeattle/Tacoma Intl
Etihad Airways
Aug 27
SEA11:25 pmSeattle/Tacoma Intl
32h 25m
2 stops
CCU8:20 pmKolkata Netaji S. Chandra
Sep 19
CCU3:45 amKolkata Netaji S. Chandra
54h 57m
2 stops
SEA10:12 pmSeattle/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 $890. 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 $939.

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 Monday. momondo users have found tickets for Monday departures for as low as $1,171. 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 26 weeks ahead of your departure date. In general, you can expect to find flights to Kolkata for around $1,252 when searching 26 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.

How have Seattle to Kolkata flight prices changed over time?

As of March 2025, prices for Seattle to Kolkata flights are approximately 43% 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

$474

Fastest flight time

21h 20m

Direct flights

None

Airports in Kolkata

1 airport
The best one-way flight to Kolkata from Seattle in the past 72 hours is $474. The best round-trip flight deal from Seattle to Kolkata found on momondo in the last 72 hours is $735.
The fastest flight from Seattle to Kolkata takes 21h 20m
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. 23h 30m 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 $759Free CancellationRating
8.1
1,284 reviews
Search Singapore Airlines flights
Turkish AirlinesPriceFrom $1,137Free CancellationRating
7.3
3,747 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,334Free CancellationRating
7.4
3,539 reviews
Search Qatar Airways flights
LufthansaPriceFrom $1,463Free CancellationRating
6.7
6,952 reviews
Search Lufthansa flights
EmiratesPriceFrom $1,497Free CancellationRating
8.0
3,189 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.


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