HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$570+ Cheap flights from Kolkata (CCU) to Seattle (SEA)

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
CCU — SEA
Apr 30 — May 71
Wed 4/30
Wed 5/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kolkata to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Kolkata Netaji S. Chandra to Seattle/Tacoma Intl are usually found in April or February, booked 90 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Kolkata to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Kolkata (CCU) to Seattle (SEA). 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 April 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,108
(Trip.com)

One-way from

$570
(Kiwi.com)

Popular in

August

Cheapest in

April

Average price

$1,311
Provider with most accurate pricing for Kolkata Netaji S. Chandra-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kolkata Netaji S. Chandra-Seattle/Tacoma Intl flights.
Search Deals
From Kolkata Netaji S. Chandra to Seattle/Tacoma Intl
Search Deals
One-way flight from Kolkata Netaji S. Chandra to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($191 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Kolkata to Seattle

Cheapest flights from Kolkata to Seattle
Explore the most affordable flight options available from Kolkata to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

This Trip.com deal was found by Cheapflights users on 4/24. 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.
Mon 5/125:30 amCCU - SEA
2 stops46h 45mMultiple Airlines
Sun 5/255:35 pmSEA - CCU
2 stops39h 40mMultiple Airlines
Deal found 4/24$1,108
This lastminute.com deal was found by Cheapflights users on 4/24. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/128:35 pmCCU - SEA
2 stops35h 35mVirgin Atlantic
Sun 5/258:20 pmSEA - CCU
2 stops48h 30mVirgin Atlantic
Deal found 4/24$1,249
This lastminute.com deal was found by Cheapflights users on 4/24. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/129:45 amCCU - SEA
1 stop40h 10mEmirates
Sun 5/255:15 pmSEA - CCU
1 stop26h 25mEmirates
Deal found 4/24$1,342
This Singapore Airlines deal was found by Cheapflights users on 4/23. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1111:30 pmCCU - SEA
1 stop21h 45mSingapore Airlines
Thu 7/3110:15 amSEA - CCU
1 stop23h 30mSingapore Airlines
Deal found 4/23$1,366
This oojo deal was found by Cheapflights users on 4/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/103:50 amCCU - SEA
1 stop21h 25mQatar Airways
Thu 7/314:30 pmSEA - CCU
1 stop21h 20mQatar Airways
Deal found 4/23$1,404
This Air France deal was found by Cheapflights users on 4/23. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/114:00 pmCCU - SEA
2 stops31h 45mAir France
Thu 7/311:30 pmSEA - CCU
2 stops27h 30mAir France
Deal found 4/23$1,488
This KLM deal was found by Cheapflights users on 4/24. 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.
Tue 5/64:00 pmCCU - SEA
2 stops32h 10mKLM
Wed 5/142:10 pmSEA - CCU
2 stops30h 40mKLM
Deal found 4/24$1,545
This FlightHub deal was found by Cheapflights users on 4/24. 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 5/159:15 pmCCU - SEA
2 stops32h 30mTurkish Airlines
Mon 10/137:10 pmSEA - CCU
2 stops28h 35mTurkish Airlines
Deal found 4/24$1,571
This British Airways deal was found by Cheapflights users on 4/23. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/102:00 amCCU - SEA
2 stops46h 05mBritish Airways
Thu 7/318:20 pmSEA - CCU
2 stops25h 40mBritish Airways
Deal found 4/23$1,609
This Gurufare deal was found by Cheapflights users on 4/24. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/85:00 pmCCU - SEA
2 stops29h 55mJapan Airlines
Mon 5/261:30 pmSEA - CCU
2 stops34h 50mJapan Airlines
Deal found 4/24$1,752
This KAYAK deal was found by Cheapflights users on 4/24. 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 5/79:20 pmCCU - SEA
2 stops27h 35mLufthansa
Wed 5/282:55 pmSEA - CCU
3 stops53h 35mLufthansa
Deal found 4/24$2,287
This Gotogate deal was found by Cheapflights users on 4/24. 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.
Sun 5/112:00 amCCU - SEA
2 stops30h 00mThai Airways
Sat 5/241:50 amSEA - CCU
2 stops34h 25mThai Airways
Deal found 4/24$2,627

Cheapflights Fare Finder

Customize your flight search to find flights from Kolkata to Seattle 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 April 25, 2025.
Use the filters below to find and compare flights from Kolkata to Seattle that are best for you.

Fly from

Kolkata

Fly to

Seattle

Route

Depart

Return

Price

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Mon 5/12

5:30 am-3:45 pm

2 stops46h 45m

Seattle/Tacoma Intl

Sun 5/25

5:35 pm-9:45 pm

2 stops39h 40m

$1,108

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Mon 5/12

8:35 pm-7:40 pm

2 stops35h 35m

Seattle/Tacoma Intl

Sun 5/25

8:20 pm-9:20 am

2 stops48h 30m

$1,249

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Mon 5/12

9:45 am-1:25 pm

1 stop40h 10m

Seattle/Tacoma Intl

Sun 5/25

5:15 pm-8:10 am

1 stop26h 25m

$1,342

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Wed 6/11

11:30 pm-8:45 am

1 stop21h 45m

Seattle/Tacoma Intl

Thu 7/31

10:15 am-10:15 pm

1 stop23h 30m

$1,366

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Tue 6/10

3:50 am-12:45 pm

1 stop21h 25m

Seattle/Tacoma Intl

Thu 7/31

4:30 pm-2:20 am

1 stop21h 20m

$1,404

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Wed 6/11

4:00 pm-11:15 am

2 stops31h 45m

Seattle/Tacoma Intl

Thu 7/31

1:30 pm-5:30 am

2 stops27h 30m

$1,488

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Tue 5/6

4:00 pm-11:40 am

2 stops32h 10m

Seattle/Tacoma Intl

Wed 5/14

2:10 pm-9:20 am

2 stops30h 40m

$1,545

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Thu 5/15

9:15 pm-5:15 pm

2 stops32h 30m

Seattle/Tacoma Intl

Mon 10/13

7:10 pm-12:15 pm

2 stops28h 35m

$1,571

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Tue 6/10

2:00 am-11:35 am

2 stops46h 05m

Seattle/Tacoma Intl

Thu 7/31

8:20 pm-10:30 am

2 stops25h 40m

$1,609

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Thu 5/8

5:00 pm-10:25 am

2 stops29h 55m

Seattle/Tacoma Intl

Mon 5/26

1:30 pm-12:50 pm

2 stops34h 50m

$1,752

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 25 results
1
2
3

Compare providers for flights from Kolkata to Seattle

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 Kolkata to Seattle in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice 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 Kolkata-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kolkata-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kolkata-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kolkata-Seattle flights, Cheapflights users trust eDreams the most. eDreams 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 Kolkata-Seattle 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 Kolkata to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Kolkata 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 Kolkata to Seattle

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

Use this chart to determine the optimal time to book a round-trip flight from Kolkata to Seattle. Price data was last updated on April 18, 2025.

The best time to book flights from Kolkata to Seattle is 90 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 Kolkata to Seattle?

Currently, January is the cheapest month in which you can book a flight from Kolkata to Seattle (average of $238). Flying from Kolkata to Seattle in July is currently the most expensive (average of $411). 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.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated April 25, 2025.
See what other customers who have flown with Japan Airlines, Singapore Airlines and Emirates from Kolkata to Seattle have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,453 reviews

Crew

8.7

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Japan Airlines
8.3
Very good
1,453 reviews
Japan Airlines
8.3
Very good
1,453 reviews

Crew

8.7

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Singapore Airlines
8.1
Very good
1,290 reviews
Japan Airlines
8.3
Very good
1,453 reviews

Crew

8.7

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Emirates
8.0
Very good
3,206 reviews
Japan Airlines
8.3
Very good
1,453 reviews

Crew

8.7

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
KLM
7.8
Good
1,333 reviews
Japan Airlines
8.3
Very good
1,453 reviews

Crew

8.7

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Thai Airways
7.7
Good
325 reviews
Japan Airlines
8.3
Very good
1,453 reviews

Crew

8.7

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Related info for your journey

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

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

    According to our current data, Virgin Atlantic ($1,249), Emirates ($1,342), and Singapore Airlines ($1,366) offers the cheapest pricing from Kolkata to Seattle. Virgin Atlantic is priced at 16% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Kolkata to Seattle one-way?

    The cheapest airline one-way is Japan Airlines, with whom users have recently found tickets for as low as $743. However, be on the lookout for offers from Qatar Airways and Air India, as they are both options that can get you from Kolkata to Seattle for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kolkata to Seattle 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 Kolkata to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Kolkata to Seattle (average of $238). Flying from Kolkata to Seattle in July is currently the most expensive (average of $411). 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

Traveling to a place near Kolkata?

Book flights to Kolkata if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Renton
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Aberdeen
Lynnwood
Shelton
Silverdale
Redmond
Issaquah

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kolkata to Seattle

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

Top 3 airlines flying from Kolkata to Seattle

Discover the top 3 airlines that operate flights from Kolkata to Seattle. 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 April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$775Average$1,422FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,323Average$1,573FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,326Average$1,389FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.