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Cheap flights from Kolkata to Seattle from ₹ 53,951

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
CCU — SEA
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Kolkata to Seattle

Enter your travel dates to find the best prices.

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 10 August 2026.

Mon 14/921:30 -
2 stops37h 37m
Mon 12/1022:15 -
2 stops33h 45m
Deal found 8/8₹ 95,246
Mon 14/921:30 -
2 stops35h 44m
Wed 10/315:10 -
2 stops39h 15m
Deal found 7/8₹ 97,340
Wed 16/921:30 -
2 stops37h 37m
Fri 18/923:42 -
2 stops32h 18m
Deal found 6/8₹ 97,720
Tue 8/908:20 -
2 stops23h 55m
Tue 9/200:10 -
2 stops42h 40m
Deal found 7/8₹ 107,236
Sun 15/1101:55 -
2 stops29h 45m
Sun 10/100:10 -
2 stops35h 00m
Deal found 8/8₹ 108,758
Sat 29/802:00 -
2 stops30h 20m
Tue 9/200:10 -
2 stops26h 35m
Deal found 7/8₹ 112,945
Thu 27/800:30 -
2 stops55h 10m
Mon 15/200:10 -
2 stops34h 15m
Deal found 7/8₹ 114,752
Tue 25/802:00 -
2 stops54h 20m
Thu 18/200:10 -
2 stops26h 35m
Deal found 7/8₹ 116,180

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 10 August 2026.

Round-trip from

₹ 95,246

One-way from

₹ 53,951

Popular in

July

Cheapest in

January

Average price

₹ 140,253
14/9-12/10
  • 14/9-12/10
  • 4 total stops
  • 71h 22m total
  • Kolkata to Seattle
Search Deals
7/10
  • 7/10
  • 2 total stops
  • 29h 05m total
  • Kolkata to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (₹ 1,932,874 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 356,561 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 454,620 searches. Data last updated 10 August 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 return flight

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Wed 16/9

21:30-22:37

2 stops37h 37m

Seattle/Tacoma Intl

Fri 18/9

23:42-20:30

2 stops32h 18m

₹ 97,720

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Mon 7/9

16:15-17:48

2 stops38h 03m

Seattle/Tacoma Intl

Mon 14/9

13:50-10:35

2 stops32h 15m

₹ 118,844
Fastest return journey

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Mon 7/9

04:00-20:21

2 stops28h 51m

Seattle/Tacoma Intl

Mon 14/9

16:25-02:30

1 stop21h 35m

₹ 133,878

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Sat 29/8

19:15-10:40

2 stops51h 55m

Seattle/Tacoma Intl

Thu 18/2

19:05-11:10

2 stops26h 35m

₹ 149,863

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Wed 26/8

09:50-13:35

1 stop40h 15m

Seattle/Tacoma Intl

Sat 20/2

10:45-07:40

2 stops31h 25m

₹ 164,707

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Sun 23/8

09:50-13:35

1 stop40h 15m

Seattle/Tacoma Intl

Sat 20/2

10:45-07:40

2 stops31h 25m

₹ 164,707

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Fri 28/8

20:55-18:29

2 stops34h 04m

Seattle/Tacoma Intl

Thu 18/2

10:45-07:40

2 stops31h 25m

₹ 167,371

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Mon 28/9

23:30-16:30

2 stops29h 30m

Seattle/Tacoma Intl

Mon 22/3

07:20-22:25

3 stops50h 35m

₹ 169,655

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Wed 16/9

20:55-13:25

1 stop29h 00m

Seattle/Tacoma Intl

Fri 18/9

17:15-08:10

1 stop26h 25m

₹ 185,164
Cheapest one-way
Fastest single journey

KolkataSeattle

CCU Kolkata Netaji S. Chandra - SEA Seattle/Tacoma Intl

CCUSEA

Kolkata Netaji S. Chandra

Wed 7/10

16:10-08:45

2 stops29h 05m

₹ 53,951

Flights are sorted by cheapest return flights first.

Deals found on 7/8

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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 return 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, January is the cheapest month in which you can book a flight from Kolkata to Seattle (average of ₹ 98,672). Flying from Kolkata to Seattle in July is currently the most expensive (average of ₹ 166,039). 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.

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 10 August 2026.
See what other customers who have flown with KLM from Kolkata to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,555 reviews
Check prices

Crew

8.4

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
KLM
7.8
Good
1,555 reviews
KLM
7.8
Good
1,555 reviews
Check prices

Crew

8.4

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

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?

    There are many flights that can get you from Kolkata to Seattle in 28h 51m. Fly via Etihad Airways or Qatar Airways to get the fastest option. Airlines will cover a distance of 11626 km. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Kolkata to Seattle round-trip?

    Our cheapest airline available from Kolkata to Seattle is KLM. Our recent data shows that you can find tickets from as low as ₹ 96,200 on this airline. You may be able to fly from Kolkata to Seattle for 22% less than the average price by searching for this airline.

  • 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 holiday 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 ₹ 98,672). Flying from Kolkata to Seattle in July is currently the most expensive (average of ₹ 166,039). 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 Kolkata to Seattle

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

Top airline flying from Kolkata to Seattle

Discover the top airline 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 454,620 searches. Data last updated 10 August 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest₹ 96,200Average₹ 98,640FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Kolkata to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Kolkata to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Kolkata to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Kolkata.

Can Cheapflights find flights from Kolkata to Seattle with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Kolkata to Seattle flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Kolkata to Seattle become cheaper?

Not ready to book yet? You can track prices for flights from Kolkata to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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