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Cheap flights from Seattle to Kolkata from $432

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 9/6. 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

Logo
2:15 pm - 11:59 pmSEA-CCU
45h 14m2 stops
Logo
12:30 am - 2:55 pmCCU-SEA
50h 55m2 stops
$884
Find Deal
dom, out 19 - sex, out 31
Logo
9:32 pm - 10:25 pmSEA-CCU
35h 23m2 stops
Logo
11:40 pm - 4:36 pmCCU-SEA
30h 26m2 stops
$903
Find Deal
seg, nov 3 - ter, dez 9
Logo
9:45 am - 10:25 pmSEA-CCU
24h 10m1 stop
Logo
11:40 pm - 4:36 pmCCU-SEA
30h 26m2 stops
$909
Find Deal
ter, out 28 - ter, dez 9
Singapore Airlines Logo
8:45 am - 10:25 pmSEA-CCU
24h 10m1 stop
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
21h 00m1 stop
$917Singapore Airlines
Find Deal
dom, nov 23 - seg, dez 8
Singapore Airlines Logo
9:32 pm - 10:25 pmSEA-CCU
35h 23m2 stops
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
45h 00m1 stop
$938Singapore Airlines
Find Deal
seg, nov 3 - ter, dez 9
Singapore Airlines Logo
9:45 am - 10:25 pmSEA-CCU
24h 10m1 stop
Singapore Airlines Logo
11:40 pm - 7:10 amCCU-SEA
45h 00m1 stop
$947Singapore Airlines
Find Deal
ter, out 28 - ter, dez 9
Air India Logo
11:20 pm - 12:50 amSEA-CCU
37h 00m2 stops
Air India Logo
7:55 pm - 10:20 pmCCU-SEA
38h 55m2 stops
$1,092Air India
Find Deal
sex, ago 29 - sáb, set 13
Turkish Airlines Logo
7:00 pm - 3:50 pmSEA-CCU
31h 20m2 stops
Turkish Airlines Logo
9:30 pm - 5:05 pmCCU-SEA
33h 05m2 stops
$1,097Turkish Airlines
Find Deal
dom, nov 2 - sex, nov 28
Air India Logo
11:20 pm - 12:10 amSEA-CCU
36h 20m2 stops
Air India Logo
2:25 am - 10:20 pmCCU-SEA
56h 25m2 stops
$1,104Air India
Find Deal
sex, ago 29 - sex, set 12
Turkish Airlines Logo
7:00 pm - 3:50 pmSEA-CCU
31h 20m2 stops
Turkish Airlines Logo
9:30 pm - 5:05 pmCCU-SEA
33h 05m2 stops
$1,120Turkish Airlines
Find Deal
dom, nov 2 - seg, dez 8

Air India flights from Seattle to Kolkata

Our best Air India deals on Seattle to Kolkata flight tickets
Air India
Aug 29
SEA11:20 pmSeattle/Tacoma Intl
37h 00m
2 stops
CCU12:50 amKolkata Netaji S. Chandra
Sep 13
CCU7:55 pmKolkata Netaji S. Chandra
38h 55m
2 stops
SEA10:20 pmSeattle/Tacoma Intl
$1,092
Find similar
Air India
Aug 29
SEA11:20 pmSeattle/Tacoma Intl
36h 20m
2 stops
CCU12:10 amKolkata Netaji S. Chandra
Sep 12
CCU2:25 amKolkata Netaji S. Chandra
56h 25m
2 stops
SEA10:20 pmSeattle/Tacoma Intl
$1,104
Find similar
Air India
Sep 19
SEA11:59 pmSeattle/Tacoma Intl
29h 36m
2 stops
CCU6:05 pmKolkata Netaji S. Chandra
Oct 5
CCU6:25 amKolkata Netaji S. Chandra
52h 41m
2 stops
SEA10:36 pmSeattle/Tacoma Intl
$1,156
Find similar

Turkish Airlines flights from Seattle to Kolkata

Our best Turkish Airlines deals on Seattle to Kolkata flight tickets
Turkish Airlines
Nov 2
SEA7:00 pmSeattle/Tacoma Intl
31h 20m
2 stops
CCU3:50 pmKolkata Netaji S. Chandra
Nov 28
CCU9:30 pmKolkata Netaji S. Chandra
33h 05m
2 stops
SEA5:05 pmSeattle/Tacoma Intl
$1,097
Find similar
Turkish Airlines
Nov 2
SEA7:00 pmSeattle/Tacoma Intl
31h 20m
2 stops
CCU3:50 pmKolkata Netaji S. Chandra
Dec 8
CCU9:30 pmKolkata Netaji S. Chandra
33h 05m
2 stops
SEA5:05 pmSeattle/Tacoma Intl
$1,120
Find similar
Turkish Airlines
Nov 1
SEA8:00 pmSeattle/Tacoma Intl
28h 10m
2 stops
CCU12:40 pmKolkata Netaji S. Chandra
Nov 28
CCU9:30 pmKolkata Netaji S. Chandra
33h 05m
2 stops
SEA5:05 pmSeattle/Tacoma Intl
$1,124
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Kolkata that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated agosto 25, 2025.
Use the filters below to find and compare flights from Seattle to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

dom 10/19

2:15 pm-11:59 pm

2 stops45h 14m

Kolkata Netaji S. Chandra

sex 10/31

12:30 am-2:55 pm

2 stops50h 55m

$884

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

seg 11/3

9:32 pm-10:25 pm

2 stops35h 23m

Kolkata Netaji S. Chandra

ter 12/9

11:40 pm-4:36 pm

2 stops30h 26m

$903

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

ter 10/28

9:45 am-10:25 pm

1 stop24h 10m

Kolkata Netaji S. Chandra

ter 12/9

11:40 pm-4:36 pm

2 stops30h 26m

$909

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

dom 11/23

8:45 am-10:25 pm

1 stop24h 10m

Kolkata Netaji S. Chandra

seg 12/8

11:40 pm-7:10 am

1 stop21h 00m

$917

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

seg 11/3

9:32 pm-10:25 pm

2 stops35h 23m

Kolkata Netaji S. Chandra

ter 12/9

11:40 pm-7:10 am

1 stop45h 00m

$938

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

ter 10/28

9:45 am-10:25 pm

1 stop24h 10m

Kolkata Netaji S. Chandra

ter 12/9

11:40 pm-7:10 am

1 stop45h 00m

$947

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

sex 8/29

11:20 pm-12:50 am

2 stops37h 00m

Kolkata Netaji S. Chandra

sáb 9/13

7:55 pm-10:20 pm

2 stops38h 55m

$1,092

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

dom 11/2

7:00 pm-3:50 pm

2 stops31h 20m

Kolkata Netaji S. Chandra

sex 11/28

9:30 pm-5:05 pm

2 stops33h 05m

$1,097

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

sex 8/29

11:20 pm-12:10 am

2 stops36h 20m

Kolkata Netaji S. Chandra

sex 9/12

2:25 am-10:20 pm

2 stops56h 25m

$1,104

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

dom 11/2

7:00 pm-3:50 pm

2 stops31h 20m

Kolkata Netaji S. Chandra

seg 12/8

9:30 pm-5:05 pm

2 stops33h 05m

$1,120

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $788. 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 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 weeks ahead of your departure date. In general, you can expect to find flights to Kolkata for around $1,205 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 $848 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 9% 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 August 2025, prices for Seattle to Kolkata flights are approximately 53% 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

Direct flights

None
There are no direct flights from Seattle to Kolkata. There are no popular flight routes from Seattle to Kolkata.
Search flight deals

  • 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 $733Free CancellationRating
8.1
1,352 reviews
Search Singapore Airlines flights
Turkish AirlinesPriceFrom $1,137Free CancellationRating
7.3
3,953 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,485Free CancellationRating
7.4
3,608 reviews
Search Qatar Airways flights
EmiratesPriceFrom $1,497Free CancellationRating
8.1
3,318 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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