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$279+ Cheap flights from Kolkata (CCU) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
CCU — SEA
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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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 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$279
(Vakatrip)

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.
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Provider most trusted by Cheapflights users for Kolkata Netaji S. Chandra-Seattle/Tacoma Intl flights.
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From Kolkata Netaji S. Chandra to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($189 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 29, 2025.

This Vakatrip deal was found by Cheapflights users on 4/28. 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 Vakatrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1211:30 pmCCU - SEA
1 stop21h 45mSingapore Airlines
Thu 5/1510:15 amSEA - CCU
1 stop23h 30mSingapore Airlines
Deal found 4/28$279
This Vakatrip deal was found by Cheapflights users on 4/28. 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 Vakatrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/111:30 amCCU - SEA
1 stop24h 25mEmirates
Thu 5/155:15 pmSEA - CCU
1 stop26h 25mEmirates
Deal found 4/28$663
This Trip.com deal was found by Cheapflights users on 4/28. 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.
Sun 6/1512:30 amCCU - SEA
2 stops28h 10mMultiple Airlines
Fri 8/2210:15 amSEA - CCU
1 stop23h 30mMultiple Airlines
Deal found 4/28$1,066
This KLM deal was found by Cheapflights users on 4/28. 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.
Mon 6/167:00 pmCCU - SEA
2 stops29h 10mKLM
Fri 8/221:55 pmSEA - CCU
2 stops30h 00mKLM
Deal found 4/28$1,213
This Air France deal was found by Cheapflights users on 4/29. 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.
Thu 6/57:30 pmCCU - SEA
2 stops28h 15mAir France
Wed 9/171:30 pmSEA - CCU
2 stops27h 30mAir France
Deal found 4/29$1,215
This Ovago deal was found by Cheapflights users on 4/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/167:00 pmCCU - SEA
2 stops28h 05mJapan Airlines
Sun 8/241:30 pmSEA - CCU
2 stops34h 50mJapan Airlines
Deal found 4/28$1,267
This Justfly.com deal was found by Cheapflights users on 4/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/233:50 amCCU - SEA
1 stop21h 25mQatar Airways
Wed 11/123:40 pmSEA - CCU
1 stop20h 35mQatar Airways
Deal found 4/28$1,294
This British Airways deal was found by Cheapflights users on 4/28. 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.
Sun 6/152:00 amCCU - SEA
2 stops45h 40mBritish Airways
Mon 8/258:20 pmSEA - CCU
2 stops25h 40mBritish Airways
Deal found 4/28$1,398
This EaseMyTrip deal was found by Cheapflights users on 4/29. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1310:15 pmCCU - SEA
2 stops31h 30mTurkish Airlines
Fri 5/167:10 pmSEA - CCU
2 stops29h 15mTurkish Airlines
Deal found 4/29$1,704
This oojo deal was found by Cheapflights users on 4/29. 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.
Thu 8/72:00 amCCU - SEA
2 stops29h 40mThai Airways
Thu 9/41:30 amSEA - CCU
2 stops34h 45mThai Airways
Deal found 4/29$2,083
This EaseMyTrip deal was found by Cheapflights users on 4/28. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/129:20 pmCCU - SEA
2 stops27h 35mLufthansa
Thu 5/1510:00 amSEA - CCU
3 stops34h 30mLufthansa
Deal found 4/28$2,143

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 29, 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

11:30 pm-8:45 am

1 stop21h 45m

Seattle/Tacoma Intl

Thu 5/15

10:15 am-10:15 pm

1 stop23h 30m

$279

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sun 5/11

1:30 am-1:25 pm

1 stop24h 25m

Seattle/Tacoma Intl

Thu 5/15

5:15 pm-8:10 am

1 stop26h 25m

$663

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sun 6/15

12:30 am-4:10 pm

2 stops28h 10m

Seattle/Tacoma Intl

Fri 8/22

10:15 am-10:15 pm

1 stop23h 30m

$1,066

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Mon 6/16

7:00 pm-11:40 am

2 stops29h 10m

Seattle/Tacoma Intl

Fri 8/22

1:55 pm-8:25 am

2 stops30h 00m

$1,213

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Thu 6/5

7:30 pm-11:15 am

2 stops28h 15m

Seattle/Tacoma Intl

Wed 9/17

1:30 pm-5:30 am

2 stops27h 30m

$1,215

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Mon 6/16

7:00 pm-10:35 am

2 stops28h 05m

Seattle/Tacoma Intl

Sun 8/24

1:30 pm-12:50 pm

2 stops34h 50m

$1,267

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Mon 6/23

3:50 am-12:45 pm

1 stop21h 25m

Seattle/Tacoma Intl

Wed 11/12

3:40 pm-1:45 am

1 stop20h 35m

$1,294

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sun 6/15

2:00 am-11:10 am

2 stops45h 40m

Seattle/Tacoma Intl

Mon 8/25

8:20 pm-10:30 am

2 stops25h 40m

$1,398

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Tue 5/13

10:15 pm-5:15 pm

2 stops31h 30m

Seattle/Tacoma Intl

Fri 5/16

7:10 pm-12:55 pm

2 stops29h 15m

$1,704

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Thu 8/7

2:00 am-7:10 pm

2 stops29h 40m

Seattle/Tacoma Intl

Thu 9/4

1:30 am-12:45 am

2 stops34h 45m

$2,083

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 11 results
1
2

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 25, 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 $405). 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 29, 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
1,459 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

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
1,459 reviews
Japan Airlines
8.3
Very good
1,459 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

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
1,292 reviews
Japan Airlines
8.3
Very good
1,459 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

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
3,213 reviews
Japan Airlines
8.3
Very good
1,459 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

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
1,334 reviews
Japan Airlines
8.3
Very good
1,459 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

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
1,459 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

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, Singapore Airlines ($279), Emirates ($663), and KLM ($1,213) offers the cheapest pricing from Kolkata to Seattle. Singapore Airlines is priced at 81% lower than the current average price of a flight leaving 3 months from now.

  • 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 $405). 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
Lakewood
Renton
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Lynnwood
Aberdeen
Shelton
Silverdale
Redmond
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$775Average$1,421FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,323Average$1,573FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,326Average$1,389FlexibilityNo cancel feeOn-time75%

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