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$327+ Cheap flights from Seattle (SEA) to Kolkata (CCU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CCU
Nov 5 — Nov 121
Wed 11/5
Wed 11/12
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Kolkata Netaji S. Chandra are usually found in September or February, booked 55 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Seattle to Kolkata

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Kolkata (CCU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$736
(oojo)

One-way from

$492
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,014
Provider with most accurate pricing for Seattle/Tacoma Intl-Kolkata Netaji S. Chandra flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Kolkata Netaji S. Chandra flights.
Search Deals
From Seattle/Tacoma Intl to Kolkata Netaji S. Chandra
Search Deals
One-way flight from Seattle/Tacoma Intl to Kolkata Netaji S. Chandra
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($232 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($94 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Seattle to Kolkata

Cheapest flights from Seattle to Kolkata
Explore the most affordable flight options available from Seattle to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 6, 2025.

This Indian Eagle deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:00 pmSEA - CCU
2 stops31h 20mTurkish Airlines
Wed 11/268:45 pmCCU - SEA
2 stops33h 50mTurkish Airlines
Deal found 10/5$951
This FlightHub deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:00 pmSEA - CCU
2 stops31h 20mTurkish Airlines
Mon 12/88:45 pmCCU - SEA
2 stops33h 50mTurkish Airlines
Deal found 10/4$952
This Indian Eagle deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:00 pmSEA - CCU
2 stops27h 55mTurkish Airlines
Sat 12/69:30 pmCCU - SEA
2 stops33h 05mTurkish Airlines
Deal found 10/4$964
This Gotogate deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 pmSEA - CCU
2 stops31h 20mTurkish Airlines
Wed 11/2610:30 pmCCU - SEA
2 stops32h 05mTurkish Airlines
Deal found 10/5$988
This Turkish Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:00 pmSEA - CCU
2 stops31h 20mTurkish Airlines
Wed 11/199:30 pmCCU - SEA
2 stops33h 05mTurkish Airlines
Deal found 10/5$992
This KLM deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/63:00 pmSEA - CCU
2 stops26h 40mKLM
Thu 11/206:30 pmCCU - SEA
2 stops30h 45mKLM
Deal found 10/5$1,000
This KAYAK deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 pmSEA - CCU
2 stops31h 20mTurkish Airlines
Tue 11/259:30 pmCCU - SEA
2 stops33h 05mTurkish Airlines
Deal found 10/5$1,011
This Turkish Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/37:00 pmSEA - CCU
2 stops31h 20mTurkish Airlines
Wed 11/196:30 pmCCU - SEA
2 stops36h 05mTurkish Airlines
Deal found 10/5$1,016
This KLM deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/162:05 pmSEA - CCU
2 stops30h 20mKLM
Thu 11/276:30 pmCCU - SEA
2 stops30h 45mKLM
Deal found 10/5$1,020
This FlightHub deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:00 pmSEA - CCU
2 stops31h 20mTurkish Airlines
Wed 12/249:30 pmCCU - SEA
2 stops33h 05mTurkish Airlines
Deal found 10/5$1,046
This Indian Eagle deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:45 amSEA - CCU
1 stop24h 10mSingapore Airlines
Mon 11/2411:40 pmCCU - SEA
1 stop21h 00mSingapore Airlines
Deal found 10/5$1,050
This Trip.com deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:10 amSEA - CCU
2 stops35h 55mMultiple Airlines
Wed 11/2611:40 pmCCU - SEA
1 stop21h 00mMultiple Airlines
Deal found 10/5$1,062

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 6, 2025.
Use the filters below to find and compare flights from Seattle to Kolkata that are best for you.

Fly from

Seattle

Fly to

Kolkata

Route

Depart

Return

Price

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Mon 11/3

7:00 pm-12:25 pm

2 stops27h 55m

Kolkata Netaji S. Chandra

Wed 12/10

10:30 pm-5:05 pm

2 stops32h 05m

$952

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Thu 11/6

7:00 pm-3:50 pm

2 stops31h 20m

Kolkata Netaji S. Chandra

Wed 11/19

9:30 pm-5:05 pm

2 stops33h 05m

$992

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Mon 11/3

7:00 pm-3:50 pm

2 stops31h 20m

Kolkata Netaji S. Chandra

Wed 11/19

6:30 pm-5:05 pm

2 stops36h 05m

$1,016

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 11/8

7:00 pm-3:50 pm

2 stops31h 20m

Kolkata Netaji S. Chandra

Wed 11/19

10:30 pm-5:05 pm

2 stops32h 05m

$1,016

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 11/9

7:00 pm-3:50 pm

2 stops31h 20m

Kolkata Netaji S. Chandra

Wed 11/19

10:30 pm-5:05 pm

2 stops32h 05m

$1,016

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Mon 11/17

2:05 pm-9:55 am

2 stops30h 20m

Kolkata Netaji S. Chandra

Thu 11/27

6:30 pm-11:45 am

2 stops30h 45m

$1,020

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 11/23

2:05 pm-9:55 am

2 stops30h 20m

Kolkata Netaji S. Chandra

Mon 12/1

6:30 pm-11:25 am

2 stops30h 25m

$1,123

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 11/4

8:45 am-10:25 pm

1 stop24h 10m

Kolkata Netaji S. Chandra

Tue 12/16

11:40 pm-4:36 pm

2 stops30h 26m

$1,252

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 11/15

3:00 pm-8:55 am

2 stops28h 25m

Kolkata Netaji S. Chandra

Tue 11/25

6:30 pm-11:45 am

2 stops30h 45m

$1,256

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 10/8

8:25 pm-8:25 am

2 stops47h 30m

Kolkata Netaji S. Chandra

Sun 10/12

8:35 pm-3:30 pm

2 stops31h 25m

$1,269

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

Showing 1-10 of 19 results
1
2

Compare providers for flights from Seattle to Kolkata

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Kolkata in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Kolkata flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Kolkata flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Kolkata flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Kolkata flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Kolkata flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Kolkata

How far ahead should I book a flight from Seattle to Kolkata?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Kolkata. Price data was last updated on October 3, 2025.

The best time to book flights from Seattle to Kolkata is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Kolkata?

Currently, September is the cheapest month in which you can book a flight from Seattle to Kolkata (average of $971). Flying from Seattle to Kolkata in December is currently the most expensive (average of $1,647). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to CCU?

Find hourly flight availability from Seattle to Kolkata. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 6, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Kolkata as you normally would.

What is the cheapest day to fly from Seattle to Kolkata?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Kolkata. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Kolkata flight should consider departing on Monday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Kolkata

Get insights into the airlines that provide service to Kolkata. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kolkata. Reviews last updated October 6, 2025.
Read through reviews of airlines operating flights from Seattle to Kolkata, such as Emirates, Singapore Airlines, and Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,363 reviews

Entertainment

8.2

Overall

8.1

Food

7.9

Comfort

8.0

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,363 reviews
Emirates
8.1
Very good
3,363 reviews

Entertainment

8.2

Overall

8.1

Food

7.9

Comfort

8.0

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Singapore Airlines
8.1
Very good
1,373 reviews
Emirates
8.1
Very good
3,363 reviews

Entertainment

8.2

Overall

8.1

Food

7.9

Comfort

8.0

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,645 reviews
Emirates
8.1
Very good
3,363 reviews

Entertainment

8.2

Overall

8.1

Food

7.9

Comfort

8.0

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Turkish Airlines
7.3
Good
3,987 reviews
Emirates
8.1
Very good
3,363 reviews

Entertainment

8.2

Overall

8.1

Food

7.9

Comfort

8.0

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Kolkata. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Kolkata?

    Airlines like Turkish Airlines fly from Seattle to Kolkata in about 27h 55m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 7224 mi.

  • What are the cheapest airlines flying from Seattle to Kolkata round-trip?

    Our cheapest airline available from Seattle to Kolkata is Singapore Airlines. Our recent data shows that you can find tickets from as low as $718 on this airline. Additional options worth looking into are Turkish Airlines and Qatar Airways, starting at $1,137 and $1,213 round-trip. Singapore Airlines is 40% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Seattle to Kolkata that include hotel bookings?

    Yes. In addition to deals on Seattle to Kolkata flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Kolkata?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kolkata.

  • Can I find deals for business class flights from Seattle to Kolkata?

    Yes. Cheapflights offers flight deals from Seattle to Kolkata by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Kolkata?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Kolkata (average of $971). Flying from Seattle to Kolkata in December is currently the most expensive (average of $1,647). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Seattle to Kolkata

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Kolkata flights
Spokane to Kolkata flights

Top 4 airlines flying from Seattle to Kolkata

Discover the top 4 airlines that operate flights from Seattle to Kolkata. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$718Average$1,110FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,137Average$1,282FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,213Average$3,275FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,768Average$2,785FlexibilityNo cancel feeOn-time75%

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