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Cheap flights from Kolkata to Seattle from ₹ 47,793

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
CCU — SEA
9 Mar — 16 Mar1
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 7 February 2026.

Mon 22/618:00
CCU
-
SEA
2 stops29h 45m
Multiple Airlines
Mon 24/813:50
SEA
-
CCU
2 stops30h 05m
Multiple Airlines
Deal found 4/2₹ 86,354
Tue 23/619:00
CCU
-
SEA
2 stops28h 45m
KLM
Sun 23/813:50
SEA
-
CCU
2 stops29h 10m
KLM
Deal found 4/2₹ 86,444
Sun 17/522:30
CCU
-
SEA
2 stops49h 15m
Multiple Airlines
Fri 5/613:30
SEA
-
CCU
2 stops26h 45m
Multiple Airlines
Deal found 4/2₹ 86,535
Wed 29/423:40
CCU
-
SEA
1 stop21h 35m
Multiple Airlines
Tue 28/721:25
SEA
-
CCU
2 stops36h 40m
Multiple Airlines
Deal found 4/2₹ 90,156
Mon 25/518:00
CCU
-
SEA
2 stops29h 45m
Air France
Tue 1/913:30
SEA
-
CCU
2 stops27h 30m
Air France
Deal found 4/2₹ 90,518
Wed 29/423:40
CCU
-
SEA
1 stop21h 35m
Singapore Airlines
Tue 28/710:15
SEA
-
CCU
1 stop23h 30m
Singapore Airlines
Deal found 3/2₹ 90,608
Sun 21/618:00
CCU
-
SEA
2 stops29h 45m
Multiple Airlines
Sun 23/813:50
SEA
-
CCU
2 stops29h 10m
Multiple Airlines
Deal found 4/2₹ 90,699
Tue 17/318:30
CCU
-
SEA
2 stops30h 35m
KLM
Sun 5/413:45
SEA
-
CCU
2 stops29h 15m
KLM
Deal found 4/2₹ 91,061
Mon 25/516:20
CCU
-
SEA
2 stops28h 55m
Multiple Airlines
Tue 1/910:15
SEA
-
CCU
1 stop23h 30m
Multiple Airlines
Deal found 6/2₹ 93,052

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 7 February 2026.

Round-trip from

₹ 86,354

One-way from

₹ 47,793

Popular in

January

Cheapest in

April

Average price

₹ 120,298
KLM
  • KLM
  • 22/6-24/8
  • 4 total stops
  • 59h 50m total
  • Kolkata to Seattle
Search Deals
15/4
  • 15/4
  • 2 total stops
  • 31h 35m total
  • Kolkata to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (₹ 1,466,548 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (₹ 570,368 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 7 February 2026.
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

Tue 23/6

19:00-11:15

2 stops28h 45m

Seattle/Tacoma Intl

Sun 23/8

13:50-07:30

2 stops29h 10m

₹ 86,444

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Wed 29/4

23:40-08:45

1 stop21h 35m

Seattle/Tacoma Intl

Tue 28/7

10:15-22:15

1 stop23h 30m

₹ 91,423

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Fri 10/7

23:30-08:45

1 stop21h 45m

Seattle/Tacoma Intl

Sat 1/8

07:20-22:15

2 stops26h 25m

₹ 97,759

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Wed 29/4

23:40-08:45

1 stop21h 35m

Seattle/Tacoma Intl

Tue 28/7

18:55-22:35

2 stops39h 10m

₹ 98,755

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Fri 10/7

23:30-08:45

1 stop21h 45m

Seattle/Tacoma Intl

Sat 1/8

10:15-22:15

1 stop23h 30m

₹ 103,281

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sat 23/5

22:00-12:31

2 stops27h 01m

₹ 49,875

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Thu 16/4

23:05-19:15

3 stops56h 40m

₹ 50,147

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sun 22/3

22:00-09:00

2 stops47h 30m

₹ 51,867

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Sat 18/4

15:55-08:47

3 stops53h 22m

₹ 52,500

KolkataSeattle

CCU - SEA

CCUSEA

Kolkata Netaji S. Chandra

Wed 18/2

00:50-13:45

2 stops50h 25m

₹ 58,384

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 14 results
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

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

Use this chart to determine the optimal time to book a return flight from Kolkata to Seattle. Price data was last updated on 30 January 2026.

The price you pay for your flight from Kolkata to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, June is the cheapest month in which you can book a flight from Kolkata to Seattle (average of ₹ 66,621). Flying from Kolkata to Seattle in August is currently the most expensive (average of ₹ 127,449). 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 for a return flight 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 7 February 2026.
See what other customers who have flown with Singapore Airlines, Emirates, andQatar Airways 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.
Singapore Airlines
8.2
Very Good
1,451 reviews
Check prices

Boarding

8.3

Food

7.8

Crew

8.6

Comfort

8.0

Entertainment

8.0

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
1,451 reviews
Singapore Airlines
8.2
Very Good
1,451 reviews
Check prices

Boarding

8.3

Food

7.8

Crew

8.6

Comfort

8.0

Entertainment

8.0

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.
Emirates
8.1
Very Good
3,507 reviews
Singapore Airlines
8.2
Very Good
1,451 reviews
Check prices

Boarding

8.3

Food

7.8

Crew

8.6

Comfort

8.0

Entertainment

8.0

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
3,730 reviews
Singapore Airlines
8.2
Very Good
1,451 reviews
Check prices

Boarding

8.3

Food

7.8

Crew

8.6

Comfort

8.0

Entertainment

8.0

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?

    There are many flights that can get you from Kolkata to Seattle in 28h 45m. Fly via KLM or Air France 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 are the cheapest airlines flying from Kolkata to Seattle round-trip?

    Our cheapest airline available from Kolkata to Seattle is Singapore Airlines. Our recent data shows that you can find tickets from as low as ₹ 91,540 on this airline. Additional options worth looking into are Qatar Airways and Emirates, starting at ₹ 113,994 and ₹ 120,819 round-trip. You may be able to fly from Kolkata to Seattle for 28% less than the average price by searching for these airlines.

  • 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, June is the cheapest month in which you can book a flight from Kolkata to Seattle (average of ₹ 66,621). Flying from Kolkata to Seattle in August is currently the most expensive (average of ₹ 127,449). 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

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
Kolkata to Bellingham 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 454,620 searches. Data last updated 7 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest₹ 91,540Average₹ 128,873FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qatar AirwaysCheapest₹ 113,994Average₹ 139,997FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest₹ 120,819Average₹ 130,849FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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