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$638+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
CCU — SEA
Jun 10 — Jun 171
Wed 6/10
Wed 6/17
1 adult, Economy
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Cheap 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 May 11, 2026.

This oojo deal was found by Cheapflights users on 5/8. 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.
Mon 6/224:00 am
CCU
-
SEA
1 stop20h 55m
Qatar Airways
Mon 6/296:03 am
SEA
-
CCU
2 stops31h 57m
Qatar Airways
Deal found 5/8$1,125
This KLM deal was found by Cheapflights users on 5/7. 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 6/1410:30 pm
CCU
-
SEA
2 stops49h 15m
KLM
Mon 9/281:50 pm
SEA
-
CCU
2 stops30h 50m
KLM
Deal found 5/7$1,201
This Qatar Airways deal was found by Cheapflights users on 5/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/74:00 am
CCU
-
SEA
2 stops42h 30m
Qatar Airways
Tue 6/234:25 pm
SEA
-
CCU
1 stop21h 35m
Qatar Airways
Deal found 5/10$1,208
This Mytrip deal was found by Cheapflights users on 5/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/211:10 am
CCU
-
SEA
3 stops30h 35m
Multiple Airlines
Sun 6/281:15 am
SEA
-
CCU
2 stops23h 25m
Multiple Airlines
Deal found 5/8$1,243
This Qatar Airways deal was found by Cheapflights users on 5/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:00 am
CCU
-
SEA
2 stops41h 08m
Qatar Airways
Tue 6/164:25 pm
SEA
-
CCU
1 stop21h 35m
Qatar Airways
Deal found 5/10$1,271
This Qatar Airways deal was found by Cheapflights users on 5/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:00 am
CCU
-
SEA
2 stops41h 00m
Multiple Airlines
Fri 9/44:25 pm
SEA
-
CCU
1 stop21h 35m
Multiple Airlines
Deal found 5/10$1,288
This KLM deal was found by Cheapflights users on 5/8. 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.
Wed 6/39:40 pm
CCU
-
SEA
2 stops26h 27m
KLM
Tue 10/131:30 pm
SEA
-
CCU
2 stops30h 15m
KLM
Deal found 5/8$1,293
This Qatar Airways deal was found by Cheapflights users on 5/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:00 am
CCU
-
SEA
2 stops41h 08m
Qatar Airways
Sat 6/204:25 pm
SEA
-
CCU
1 stop21h 35m
Qatar Airways
Deal found 5/10$1,299
This Qatar Airways deal was found by Cheapflights users on 5/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:00 am
CCU
-
SEA
2 stops41h 04m
Qatar Airways
Thu 6/184:25 pm
SEA
-
CCU
1 stop21h 35m
Qatar Airways
Deal found 5/10$1,328
This Indian Eagle deal was found by Cheapflights users on 5/8. 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.
Sat 8/812:30 am
CCU
-
SEA
2 stops29h 15m
Multiple Airlines
Thu 9/177:10 pm
SEA
-
CCU
2 stops26h 10m
Multiple Airlines
Deal found 5/8$1,331
This Indian Eagle deal was found by Cheapflights users on 5/8. 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.
Sat 6/1310:30 pm
CCU
-
SEA
2 stops48h 40m
Multiple Airlines
Wed 11/48:00 pm
SEA
-
CCU
2 stops36h 40m
Multiple Airlines
Deal found 5/8$1,346

Find 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 May 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,125
(oojo)

One-way from

$638
(Kiwi.com)

Popular in

August

Cheapest in

April

Average price

$1,263
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. 9% potential increase in price ($127 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 11, 2026.
Use the filters below to find and compare flights from Kolkata to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sun 6/7

4:00 am-11:01 am

2 stops43h 31m

Seattle/Tacoma Intl

Mon 6/22

4:25 pm-2:30 am

1 stop21h 35m

$1,208

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sun 6/14

10:30 pm-11:15 am

2 stops49h 15m

Seattle/Tacoma Intl

Mon 9/28

1:50 pm-9:10 am

2 stops30h 50m

$1,240

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Mon 6/1

4:00 am-2:45 pm

1 stop23h 15m

Seattle/Tacoma Intl

Thu 6/18

4:25 pm-2:30 am

1 stop21h 35m

$1,358

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sun 6/14

9:50 am-1:25 pm

1 stop40h 05m

Seattle/Tacoma Intl

Mon 9/28

5:15 pm-8:10 am

1 stop26h 25m

$1,385

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Thu 10/22

9:50 am-1:25 pm

1 stop40h 05m

Seattle/Tacoma Intl

Mon 10/26

5:05 pm-7:40 am

1 stop26h 05m

$1,392
Quickest round-trip

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sat 7/18

4:00 am-12:25 pm

1 stop20h 55m

Seattle/Tacoma Intl

Wed 9/30

4:25 pm-2:30 am

1 stop21h 35m

$1,398

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Mon 7/20

4:00 am-10:41 pm

2 stops31h 11m

Seattle/Tacoma Intl

Wed 9/23

4:25 pm-2:30 am

1 stop21h 35m

$1,411

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Tue 6/9

10:30 pm-11:15 am

2 stops49h 15m

Seattle/Tacoma Intl

Tue 6/16

1:30 pm-8:15 am

2 stops30h 15m

$1,449
Cheapest one-way

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Tue 6/2

9:25 pm-11:00 am

2 stops26h 05m

$638

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Mon 6/29

2:05 am-4:10 pm

2 stops26h 35m

$874

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Showing 1-10 of 16 resultsSorted by cheapest first
1
2
  • 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 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 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

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

Currently, April is the cheapest month in which you can book a flight from Kolkata to Seattle (average of $1,011). Flying from Kolkata to Seattle in August is currently the most expensive (average of $1,477). 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.

How much does it cost to fly round-trip from Kolkata to Seattle?

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 May 11, 2026.
Peruse reviews from past customers who have flown with Singapore Airlines and Qatar Airways from Kolkata to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very good
1,510 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Crew

8.6

Food

7.8

Overall

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.2
Very good
1,510 reviews
Singapore Airlines
8.2
Very good
1,510 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Crew

8.6

Food

7.8

Overall

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Qatar Airways
7.4
Good
3,728 reviews
Singapore Airlines
8.2
Very good
1,510 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Crew

8.6

Food

7.8

Overall

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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.

  • How long is the flight from Kolkata to Seattle?

    Departing from Kolkata to Seattle will take you 40h 05m. The distance from Kolkata to Seattle is about 7224 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Singapore Airlines ($824), and Qatar Airways ($1,251) offers the cheapest pricing from Kolkata to Seattle. Singapore Airlines is priced at 35% 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 Singapore Airlines, with whom users have recently found tickets for as low as $350. However, be on the lookout for offers from Qatar Airways and Emirates, 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, April is the cheapest month in which you can book a flight from Kolkata to Seattle (average of $1,011). Flying from Kolkata to Seattle in August is currently the most expensive (average of $1,477). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Ocean Shores
Olympia
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Kirkland
Issaquah
Shoreline

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 2 airlines flying from Kolkata to Seattle

Discover the top 2 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 May 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$824Average$1,207FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,251Average$1,303FlexibilityNo cancel feeOn-time68%

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