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Cheap flights from Seattle to Kolkata from C$ 859

SEA — CCU
15 Oct — 22 Oct1
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

Sun 20/96:15 a.m. -
2 stops32h 10m
Mon 5/109:30 p.m. -
2 stops39h 36m
Deal found 12/9C$ 1,499
Mon 14/99:40 p.m. -
2 stops34h 20m
Mon 5/109:30 p.m. -
2 stops39h 36m
Deal found 10/9C$ 1,500
Tue 15/911:57 p.m. -
2 stops38h 28m
Mon 28/93:50 a.m. -
2 stops31h 17m
Deal found 13/9C$ 1,549
Tue 24/117:05 p.m. -
2 stops28h 15m
Tue 19/16:45 p.m. -
2 stops35h 55m
Deal found 10/9C$ 1,692
Thu 12/1111:30 p.m. -
2 stops27h 15m
Mon 30/118:55 p.m. -
2 stops58h 45m
Deal found 10/9C$ 1,695
Wed 11/117:05 p.m. -
2 stops28h 15m
Sun 6/126:45 p.m. -
2 stops35h 55m
Deal found 13/9C$ 1,734
Thu 12/1112:10 a.m. -
2 stops26h 35m
Tue 1/127:05 p.m. -
2 stops60h 35m
Deal found 10/9C$ 1,750
Thu 26/117:05 p.m. -
2 stops28h 15m
Thu 21/19:30 p.m. -
2 stops33h 10m
Deal found 10/9C$ 1,775
Wed 21/101:45 p.m. -
2 stops30h 00m
Tue 17/119:30 p.m. -
2 stops31h 14m
Deal found 14/9C$ 1,780
Thu 22/101:45 p.m. -
2 stops29h 20m
Tue 17/119:30 p.m. -
2 stops31h 14m
Deal found 14/9C$ 1,807
Sat 14/112:35 p.m. -
2 stops28h 50m
Mon 7/126:45 p.m. -
2 stops30h 35m
Deal found 13/9C$ 1,821
Fri 23/105:45 p.m. -
2 stops49h 55m
Tue 17/119:30 p.m. -
2 stops31h 14m
Deal found 14/9C$ 1,849

Find flight deals from Seattle to Kolkata

Round-trip from

C$ 1,524

One-way from

C$ 859

Popular in

December

Cheapest in

April

Average price

C$ 1,655
4/3-20/3
  • 4/3-20/3
  • 4 total stops
  • 104h 45m total
  • Seattle to Kolkata
Search Deals
25/11-31/12
  • 25/11-31/12
  • 2 total stops
  • 42h 40m total
  • Seattle to Kolkata
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 232 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 93 potential savings vs. average RT price).
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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.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sat 21/11

11:29 a.m.-11:50 p.m.

3 stops46h 51m

Kolkata Netaji S. Chandra

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 949

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Fri 23/10

11:55 p.m.-7:55 p.m.

2 stops31h 30m

Kolkata Netaji S. Chandra

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,002

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Mon 26/10

8:05 p.m.-3:20 p.m.

2 stops30h 45m

Kolkata Netaji S. Chandra

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,010

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Mon 19/10

1:45 p.m.-9:10 a.m.

2 stops30h 55m

Kolkata Netaji S. Chandra

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,014

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Wed 25/11

8:40 a.m.-11:55 a.m.

1 stop37h 45m

Kolkata Netaji S. Chandra

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,157

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sat 24/10

8:05 p.m.-3:20 p.m.

2 stops54h 45m

Kolkata Netaji S. Chandra

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,467

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Mon 19/10

4:25 p.m.-2:10 a.m.

1 stop21h 15m

Kolkata Netaji S. Chandra

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,655

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 18/10

4:25 p.m.-2:10 a.m.

1 stop21h 15m

Kolkata Netaji S. Chandra

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,655
Quickest round-trip

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Wed 28/10

4:50 p.m.-1:55 a.m.

1 stop20h 35m

Kolkata Netaji S. Chandra

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,655

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sat 9/1

7:05 p.m.-3:20 p.m.

2 stops30h 45m

Kolkata Netaji S. Chandra

Fri 19/2

6:45 p.m.-5:10 p.m.

2 stops35h 55m

C$ 1,692

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 23 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 round-trip 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 C$ 1,377). Flying from Seattle to Kolkata in December is currently the most expensive (average of C$ 2,362). 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 to fly round-trip from Seattle to Kolkata?

Airfare is typical for this route at the moment.

Seattle to Kolkata flights typically cost between C$ 874 and C$ 2,010 in March.
The cheapest round-trip price found within the last 5 days was C$ 1,524 on Multiple Airlines (4 Mar-20 Mar).

Reviews of airlines servicing Kolkata

Check out reviews from past customers who have flown with Singapore Airlines from Seattle to Kolkata to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very good
1,602 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.1

Boarding

8.3

Food

7.8

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Singapore Airlines
8.2
Very good
1,602 reviews
Singapore Airlines
8.2
Very good
1,602 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.1

Boarding

8.3

Food

7.8

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.

Related info for your journey

  • How long is the flight from Seattle to Kolkata?

    For as low as C$ 1,692, Turkish Airlines can have you in Kolkata from Seattle in 30h 45m. The distance between Seattle and Kolkata is about 11626 km.

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

    Currently priced at C$ 1,008, Singapore Airlines will fly you from Seattle to Kolkata and back. In addition to Singapore Airlines, many other airlines offer competitively priced options for your trip. Singapore Airlines is currently priced 38% below the average price you’ll pay for this route.

  • 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 vacation 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 C$ 1,377). Flying from Seattle to Kolkata in December is currently the most expensive (average of C$ 2,362). 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

Complete your trip

Kolkata car rentals
Kolkata Netaji S. Chandra Airport car rentals

Top airline flying from Seattle to Kolkata

AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapestC$ 1,008AverageC$ 1,537FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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Need flexible booking options for your flight to Kolkata from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Yes! Start tracking prices for Seattle to Kolkata flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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