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Cheap flights from Seattle to Kolkata from ₹ 41,166

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CCU
27 Jul — 3 Aug1
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 27 June 2026.

Sat 12/923:55
SEA
-
CCU
2 stops32h 05m
Etihad Airways
Mon 28/921:30
CCU
-
SEA
2 stops35h 42m
Etihad Airways
Deal found 25/6₹ 96,117
Sat 12/907:18
SEA
-
CCU
2 stops26h 47m
Multiple Airlines
Mon 28/923:30
CCU
-
SEA
1 stop21h 45m
Multiple Airlines
Deal found 25/6₹ 100,365
Mon 14/923:55
SEA
-
CCU
2 stops32h 05m
Etihad Airways
Sat 26/903:50
CCU
-
SEA
2 stops53h 22m
Etihad Airways
Deal found 23/6₹ 104,520
Wed 18/1108:45
SEA
-
CCU
1 stop24h 10m
Singapore Airlines
Fri 25/1223:40
CCU
-
SEA
1 stop21h 00m
Singapore Airlines
Deal found 22/6₹ 105,369
Fri 4/905:50
SEA
-
CCU
2 stops32h 35m
Multiple Airlines
Fri 18/903:50
CCU
-
SEA
2 stops32h 51m
Multiple Airlines
Deal found 25/6₹ 105,464
Sat 12/923:55
SEA
-
CCU
2 stops32h 05m
Etihad Airways
Sat 26/903:50
CCU
-
SEA
2 stops53h 22m
Etihad Airways
Deal found 23/6₹ 110,090
Sat 8/819:15
SEA
-
CCU
2 stops28h 05m
Multiple Airlines
Thu 13/800:30
CCU
-
SEA
2 stops46h 40m
Multiple Airlines
Deal found 24/6₹ 116,322
Sat 15/819:15
SEA
-
CCU
2 stops30h 40m
Multiple Airlines
Thu 20/800:30
CCU
-
SEA
2 stops46h 40m
Multiple Airlines
Deal found 24/6₹ 116,511
Sat 15/819:15
SEA
-
CCU
2 stops26h 05m
Multiple Airlines
Sat 5/900:30
CCU
-
SEA
2 stops46h 40m
Multiple Airlines
Deal found 25/6₹ 121,043
Wed 21/1019:15
SEA
-
CCU
2 stops29h 05m
Multiple Airlines
Thu 3/1222:00
CCU
-
SEA
2 stops32h 40m
Multiple Airlines
Deal found 26/6₹ 121,609
Mon 20/712:35
SEA
-
CCU
2 stops35h 25m
Multiple Airlines
Sat 25/717:40
CCU
-
SEA
2 stops53h 30m
Multiple Airlines
Deal found 26/6₹ 121,798
Tue 27/1015:25
SEA
-
CCU
2 stops29h 00m
KLM
Thu 3/1220:15
CCU
-
SEA
2 stops29h 05m
KLM
Deal found 26/6₹ 122,081

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 27 June 2026.

Round-trip from

₹ 96,117

One-way from

₹ 41,166

Popular in

December

Cheapest in

September

Average price

₹ 101,215
Etihad Airways
  • Etihad Airways
  • 12/9-28/9
  • 4 total stops
  • 67h 47m total
  • Seattle to Kolkata
Search Deals
Singapore Airlines
  • Singapore Airlines
  • 15/9
  • 1 total stop
  • 23h 50m total
  • Seattle to Kolkata
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (₹ 1,484,922 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (₹ 599,523 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 27 June 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

Wed 18/11

08:45-22:25

1 stop24h 10m

Kolkata Netaji S. Chandra

Fri 25/12

23:40-07:10

1 stop21h 00m

₹ 105,369

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 18/11

19:05-12:25

2 stops27h 50m

Kolkata Netaji S. Chandra

Thu 24/12

00:30-17:10

2 stops30h 10m

₹ 126,424

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 8/7

19:15-10:45

2 stops27h 00m

Kolkata Netaji S. Chandra

Thu 30/7

22:30-10:40

2 stops48h 40m

₹ 148,896

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Fri 20/11

14:30-22:25

2 stops42h 25m

Kolkata Netaji S. Chandra

Fri 25/12

23:40-07:10

1 stop21h 00m

₹ 150,973

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Sun 23/8

16:25-02:30

1 stop21h 35m

Kolkata Netaji S. Chandra

Fri 28/8

09:50-13:25

1 stop40h 05m

₹ 157,676

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 8/7

19:15-12:30

2 stops28h 45m

Kolkata Netaji S. Chandra

Tue 28/7

21:00-17:20

2 stops32h 50m

₹ 183,358

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Tue 7/7

13:30-08:15

2 stops30h 15m

Kolkata Netaji S. Chandra

Tue 28/7

18:45-11:15

2 stops29h 00m

₹ 193,933
Cheapest one-way

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 29/7

16:30-23:50

2 stops42h 50m

₹ 58,539
Fastest single journey

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Wed 12/8

16:25-02:30

1 stop21h 35m

₹ 59,955

SeattleKolkata

SEA - CCU

SEACCU

Seattle/Tacoma Intl

Thu 30/7

00:10-12:35

3 stops47h 55m

₹ 60,805

Flights are sorted by cheapest return flights first.

Deals found on 26/6

Showing 1-10 of 18 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, March is the cheapest month in which you can book a flight from Seattle to Kolkata (average of ₹ 87,052). Flying from Seattle to Kolkata in December is currently the most expensive (average of ₹ 174,483). 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 ₹ 105,369, Singapore Airlines can have you in Kolkata from Seattle in 24h 10m. Airlines will cover a distance of 11626 km.

  • 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, March is the cheapest month in which you can book a flight from Seattle to Kolkata (average of ₹ 87,052). Flying from Seattle to Kolkata in December is currently the most expensive (average of ₹ 174,483). 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
Spokane to Kolkata 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 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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