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Cheap flights from Seattle to Kolkata from ₹ 46,846

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CCU
12 Jun — 19 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Kolkata

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Kolkata
Explore the most affordable flight options available from Seattle to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 May 2026.

Wed 9/923:55
SEA
-
CCU
2 stops38h 35m
Etihad Airways
Fri 9/1004:10
CCU
-
SEA
2 stops29h 35m
Etihad Airways
Deal found 9/5₹ 102,105
Thu 8/1010:15
SEA
-
CCU
1 stop23h 30m
Singapore Airlines
Mon 26/1023:40
CCU
-
SEA
1 stop21h 00m
Singapore Airlines
Deal found 13/5₹ 102,392
Fri 9/1010:15
SEA
-
CCU
1 stop47h 30m
Singapore Airlines
Sat 7/1123:40
CCU
-
SEA
1 stop21h 00m
Singapore Airlines
Deal found 13/5₹ 108,702
Tue 13/1010:15
SEA
-
CCU
1 stop23h 30m
Singapore Airlines
Fri 23/1023:40
CCU
-
SEA
1 stop21h 35m
Singapore Airlines
Deal found 10/5₹ 109,754
Thu 8/1010:15
SEA
-
CCU
1 stop23h 30m
Multiple Airlines
Mon 26/1023:40
CCU
-
SEA
2 stops28h 55m
Multiple Airlines
Deal found 13/5₹ 111,857
Mon 2/1120:00
SEA
-
CCU
2 stops34h 25m
Multiple Airlines
Sun 20/1222:00
CCU
-
SEA
2 stops32h 35m
Multiple Airlines
Deal found 10/5₹ 112,431
Fri 9/1019:10
SEA
-
CCU
2 stops33h 15m
Multiple Airlines
Sat 7/1117:30
CCU
-
SEA
2 stops37h 05m
Multiple Airlines
Deal found 13/5₹ 112,622
Fri 20/1119:00
SEA
-
CCU
2 stops32h 20m
Multiple Airlines
Fri 25/1221:00
CCU
-
SEA
2 stops33h 35m
Multiple Airlines
Deal found 12/5₹ 115,394
Wed 9/917:59
SEA
-
CCU
2 stops40h 06m
Multiple Airlines
Fri 9/1023:40
CCU
-
SEA
1 stop21h 35m
Multiple Airlines
Deal found 9/5₹ 116,542
Mon 2/1116:05
SEA
-
CCU
1 stop20h 20m
Qatar Airways
Sat 19/1203:25
CCU
-
SEA
1 stop21h 45m
Qatar Airways
Deal found 10/5₹ 116,733
Sat 10/1023:55
SEA
-
CCU
2 stops38h 35m
Etihad Airways
Sat 24/1004:10
CCU
-
SEA
2 stops29h 35m
Etihad Airways
Deal found 12/5₹ 117,020
Thu 8/1009:59
SEA
-
CCU
2 stops28h 01m
Qatar Airways
Sun 25/1003:25
CCU
-
SEA
2 stops27h 38m
Qatar Airways
Deal found 13/5₹ 117,402

Find flight deals from Seattle to Kolkata

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Kolkata (CCU). 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 13 May 2026.

Round-trip from

₹ 102,105

One-way from

₹ 46,846

Popular in

December

Cheapest in

September

Average price

₹ 105,643
Etihad Airways
  • Etihad Airways
  • 9/9-9/10
  • 4 total stops
  • 68h 10m total
  • Seattle to Kolkata
Search Deals
Singapore Airlines
  • Singapore Airlines
  • 21/8
  • 1 total stop
  • 23h 30m total
  • Seattle to Kolkata
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (₹ 1,290,258 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (₹ 528,708 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to Kolkata 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 13 May 2026.
Use the filters below to find and compare flights from Seattle to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 30/6

16:25-02:30

1 stop21h 35m

Kolkata Netaji S. Chandra

Sat 8/8

04:00-12:25

1 stop20h 55m

₹ 126,006

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 6/6

17:05-17:30

3 stops35h 55m

Kolkata Netaji S. Chandra

Fri 12/6

07:10-14:45

3 stops44h 05m

₹ 129,161

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 5/6

19:10-21:20

2 stops37h 40m

Kolkata Netaji S. Chandra

Sat 13/6

22:30-10:40

2 stops48h 40m

₹ 135,854

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 1/7

16:25-20:20

2 stops39h 25m

Kolkata Netaji S. Chandra

Tue 4/8

06:55-12:25

2 stops42h 00m

₹ 142,546

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 2/8

19:10-15:30

2 stops31h 50m

Kolkata Netaji S. Chandra

Sun 16/8

18:45-17:15

2 stops35h 00m

₹ 149,716

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 7/8

19:10-12:50

2 stops29h 10m

Kolkata Netaji S. Chandra

Tue 18/8

18:45-17:15

2 stops35h 00m

₹ 154,210

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Thu 6/8

19:10-10:45

2 stops27h 05m

Kolkata Netaji S. Chandra

Mon 17/8

18:45-17:15

2 stops35h 00m

₹ 167,499

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 2/8

19:10-15:30

2 stops31h 50m

Kolkata Netaji S. Chandra

Mon 17/8

21:40-17:15

2 stops32h 05m

₹ 167,499

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sat 10/10

07:20-22:15

3 stops50h 25m

Kolkata Netaji S. Chandra

Sat 24/10

23:40-15:25

2 stops28h 15m

₹ 171,227

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Thu 8/10

10:15-22:15

1 stop23h 30m

Kolkata Netaji S. Chandra

Mon 26/10

23:40-14:25

2 stops51h 15m

₹ 277,061

Flights are sorted by cheapest return flights first.

Deals found on 10/5

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Kolkata

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

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

Booking 67 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Kolkata. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Seattle to Kolkata (average of ₹ 75,336). Flying from Seattle to Kolkata in December is currently the most expensive (average of ₹ 165,778). 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 Seattle to Kolkata?

Related info for your journey

Find useful and relevant information for your journey from Seattle to Kolkata. 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 Seattle to Kolkata?

    For as low as ₹ 121,417, Qatar Airways can have you in Kolkata from Seattle in 21h 35m. Airlines will cover a distance of 11626 km. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Seattle to Kolkata (average of ₹ 75,336). Flying from Seattle to Kolkata in December is currently the most expensive (average of ₹ 165,778). 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 Seattle to Kolkata

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

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

Cheapflights helps you search for flights from Seattle to Kolkata via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to Kolkata for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Kolkata from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Kolkata from Seattle today and book when prices fit your budget.

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