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Cheap flights from Seattle to Kolkata from ₹ 36,943

SEA — CCU
29 Oct — 5 Nov1
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

Mon 19/1023:18 -
2 stops32h 07m
Wed 28/1020:55 -
2 stops27h 30m
Deal found 24/9₹ 101,041
Sun 18/1023:18 -
2 stops29h 07m
Wed 28/1022:30 -
2 stops25h 55m
Deal found 24/9₹ 102,096
Wed 21/1023:18 -
2 stops29h 07m
Wed 28/1022:30 -
2 stops30h 04m
Deal found 28/9₹ 102,768
Sun 18/1023:18 -
2 stops32h 07m
Sun 25/1020:55 -
2 stops27h 30m
Deal found 28/9₹ 103,056
Mon 19/1023:18 -
2 stops32h 07m
Sat 24/1022:30 -
2 stops25h 55m
Deal found 28/9₹ 103,632
Wed 21/1023:18 -
2 stops29h 07m
Thu 29/1020:55 -
2 stops28h 51m
Deal found 28/9₹ 103,727
Sun 18/1023:18 -
2 stops32h 07m
Wed 28/1017:35 -
2 stops35h 15m
Deal found 26/9₹ 103,919
Tue 27/1014:02 -
2 stops41h 08m
Fri 4/1222:30 -
2 stops27h 02m
Deal found 28/9₹ 104,591
Sun 18/1023:18 -
2 stops32h 07m
Sat 24/1022:30 -
2 stops25h 55m
Deal found 28/9₹ 104,687
Mon 19/1023:18 -
2 stops32h 07m
Mon 26/1022:30 -
2 stops25h 55m
Deal found 28/9₹ 105,551
Sat 3/1021:40 -
2 stops34h 20m
Fri 9/1003:50 -
2 stops31h 22m
Deal found 28/9₹ 105,838
Wed 21/1023:18 -
2 stops32h 07m
Sun 1/1114:35 -
2 stops35h 51m
Deal found 26/9₹ 106,030

Find flight deals from Seattle to Kolkata

Round-trip from

₹ 84,536

One-way from

₹ 36,943

Popular in

December

Cheapest in

April

Average price

₹ 114,283
Singapore Airlines
  • Singapore Airlines
  • 9/1-30/1
  • 2 total stops
  • 45h 10m total
  • Seattle to Kolkata
Search Deals
Singapore Airlines
  • Singapore Airlines
  • 14/2-31/12
  • 1 total stop
  • 24h 20m total
  • Seattle to Kolkata
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (₹ 995,909 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 368,476 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

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Cheapest return flight

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Tue 27/10

01:10-23:55

3 stops34h 15m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 64,674

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Fri 23/10

19:15-15:20

2 stops31h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 77,340

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Fri 23/10

17:45-08:10

2 stops49h 55m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 97,874
Fastest return journey

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sat 31/10

16:50-01:55

1 stop20h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 110,156

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Thu 22/10

16:25-02:10

1 stop21h 15m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 111,500

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Thu 14/1

15:50-01:55

1 stop20h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 115,242

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Thu 29/10

16:50-01:55

1 stop20h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 115,242

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 4/10

16:25-02:10

1 stop21h 15m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 115,242

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 18/10

16:25-02:10

1 stop21h 15m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 115,242

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Tue 8/12

19:05-12:40

2 stops28h 05m

Kolkata Netaji S. Chandra

Tue 15/12

18:45-17:10

2 stops35h 55m

₹ 118,025

Flights are sorted by cheapest return flights first.

Deals found on 27/9

Showing 1-10 of 20 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

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, April is the cheapest month in which you can book a flight from Seattle to Kolkata (average of ₹ 95,092). Flying from Seattle to Kolkata in December is currently the most expensive (average of ₹ 156,791). 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?

Airfare is below average for this route at the moment.

Seattle to Kolkata flights typically cost between ₹ 104,111 and ₹ 157,079 in January.
The cheapest return price found within the last 5 days was ₹ 84,536 on Singapore Airlines (9 Jan–30 Jan).

Related info for your journey

  • How long is the flight from Seattle to Kolkata?

    For as low as ₹ 147,099, Turkish Airlines can have you in Kolkata from Seattle in 21h 15m. 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, April is the cheapest month in which you can book a flight from Seattle to Kolkata (average of ₹ 95,092). Flying from Seattle to Kolkata in December is currently the most expensive (average of ₹ 156,791). 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 Seattle to Kolkata

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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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