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Cheap flights from Seattle to Kolkata from C$ 1,909

SEA — CCU
5 Dec — 12 Dec1
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 22/112:35 p.m. -
2 stops28h 15m
Sun 6/129:30 p.m. -
2 stops31h 13m
Deal found 2/11C$ 2,258
Fri 6/112:35 p.m. -
2 stops27h 30m
Thu 12/116:55 p.m. -
2 stops30h 22m
Deal found 30/10C$ 2,259
Tue 3/114:05 p.m. -
2 stops27h 10m
Sun 6/127:10 p.m. -
2 stops30h 10m
Deal found 31/10C$ 2,286
Wed 18/114:05 p.m. -
1 stop37h 25m
Tue 8/129:20 a.m. -
1 stop41h 45m
Deal found 2/11C$ 2,317
Wed 18/114:05 p.m. -
1 stop37h 25m
Wed 2/129:20 a.m. -
1 stop41h 45m
Deal found 2/11C$ 2,338
Thu 19/114:05 p.m. -
1 stop37h 25m
Tue 8/129:20 a.m. -
1 stop41h 45m
Deal found 2/11C$ 2,386
Fri 6/117:05 p.m. -
2 stops52h 15m
Thu 12/119:30 p.m. -
2 stops33h 10m
Deal found 3/11C$ 2,395
Thu 19/114:05 p.m. -
1 stop37h 25m
Wed 2/129:20 a.m. -
1 stop41h 45m
Deal found 2/11C$ 2,407
Mon 23/117:05 p.m. -
2 stops52h 15m
Wed 2/1210:25 p.m. -
2 stops32h 15m
Deal found 2/11C$ 2,426

Find flight deals from Seattle to Kolkata

Round-trip from

C$ 1,909

Popular in

December

Cheapest in

June

Average price

C$ 1,797
24/2-3/3
  • 24/2-3/3
  • 5 total stops
  • 69h 39m total
  • Seattle to Kolkata
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Highest demand for flights based on searches. 11% potential increase in price (C$ 295 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 97 potential savings vs. average RT price).
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Average for round-trip flights in November 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

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Route

Depart

Return

Price

Cheapest round-trip

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Wed 24/2

9:40 p.m.-10:30 p.m.

2 stops35h 20m

Kolkata Netaji S. Chandra

Wed 3/3

11:40 p.m.-8:29 p.m.

3 stops34h 19m

C$ 1,909

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Mon 22/2

3:50 p.m.-1:55 a.m.

1 stop20h 35m

Kolkata Netaji S. Chandra

Tue 2/3

3:25 a.m.-11:40 a.m.

1 stop21h 45m

C$ 2,043

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 21/2

3:50 p.m.-1:55 a.m.

1 stop20h 35m

Kolkata Netaji S. Chandra

Wed 3/3

3:25 a.m.-6:56 p.m.

2 stops29h 01m

C$ 2,079

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Thu 29/4

10:15 a.m.-10:15 p.m.

1 stop23h 30m

Kolkata Netaji S. Chandra

Mon 3/5

11:50 p.m.-8:45 a.m.

1 stop21h 25m

C$ 2,083

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 21/2

3:50 p.m.-1:55 a.m.

1 stop20h 35m

Kolkata Netaji S. Chandra

Fri 5/3

3:25 a.m.-6:56 p.m.

2 stops29h 01m

C$ 2,135

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Tue 23/2

8:40 a.m.-10:25 p.m.

1 stop24h 15m

Kolkata Netaji S. Chandra

Fri 5/3

11:20 p.m.-7:05 a.m.

1 stop21h 15m

C$ 2,148

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Fri 26/2

3:50 p.m.-1:55 a.m.

1 stop20h 35m

Kolkata Netaji S. Chandra

Fri 5/3

3:25 a.m.-11:40 a.m.

1 stop21h 45m

C$ 2,155

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Tue 23/2

8:10 a.m.-1:55 a.m.

2 stops28h 15m

Kolkata Netaji S. Chandra

Fri 5/3

3:25 a.m.-6:56 p.m.

2 stops29h 01m

C$ 2,163

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Sun 21/2

4:05 p.m.-7:40 a.m.

1 stop26h 05m

Kolkata Netaji S. Chandra

Thu 4/3

8:35 p.m.-1:35 p.m.

1 stop30h 30m

C$ 2,177

SeattleKolkata

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

SEACCU

Seattle/Tacoma Intl

Thu 25/2

7:40 a.m.-10:25 p.m.

3 stops49h 15m

Kolkata Netaji S. Chandra

Thu 4/3

11:20 p.m.-3:15 p.m.

2 stops29h 25m

C$ 2,188

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/10

Showing 1-10 of 18 resultsSorted by cheapest first
1
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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, June is the cheapest month in which you can book a flight from Seattle to Kolkata (average of C$ 1,338). Flying from Seattle to Kolkata in December is currently the most expensive (average of C$ 2,466). 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$ 1,428 and C$ 1,941 in February.
The cheapest round-trip price found within the last 5 days was C$ 1,909 on Multiple Airlines (24 Feb-3 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
1,635 reviews
Check prices

Food

7.8

Comfort

8.0

Overall

8.2

Entertainment

8.1

Boarding

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Judith,Sep 2026

SFO - SIN

Great except for giving me a dinner with rice in it that I didn’t order.
Singapore Airlines
8.2
Very good
1,635 reviews
Singapore Airlines
8.2
Very good
1,635 reviews
Check prices

Food

7.8

Comfort

8.0

Overall

8.2

Entertainment

8.1

Boarding

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Judith,Sep 2026

SFO - SIN

Great except for giving me a dinner with rice in it that I didn’t order.

Related info for your journey

  • How long is the flight from Seattle to Kolkata?

    For as low as C$ 2,043, Qatar Airways can have you in Kolkata from Seattle in 20h 35m. The distance between Seattle and Kolkata is about 11626 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at C$ 1,013, 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 40% 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, June is the cheapest month in which you can book a flight from Seattle to Kolkata (average of C$ 1,338). Flying from Seattle to Kolkata in December is currently the most expensive (average of C$ 2,466). 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$ 1,013AverageC$ 1,545FlexibilityNo 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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