Cheap flights from Seattle to Kolkata

17 May — 24 May1
1 adult
Tue 17/5
Tue 24/5

How to find the cheapest flight from Seattle to Kolkata

All the information you need to plan the best SEA to CCU flight in 2022: compare Seattle to Kolkata flight prices with the expected peak season, weather and rainfall in Kolkata.



C$ 983 - C$ 1,699



20 - 31 °C



7 - 356 mm

Popular inDecemberHigh demand for flights, 28% potential price rise
Cheapest inOctoberBest time to find cheap flights, 20% potential price drop
Average priceC$ 1,597Average for round-trip flights in May 2022
Round-trip fromC$ 1,277From Seattle/Tacoma Intl to Kolkata Netaji S. Chandra

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

To save on the cost of your flight from Seattle to Kolkata, book at least 61 days before your planned departure. Booking around this time can save you about 47% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 1,875 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 2,087.

What is the cheapest month to fly from Seattle to Kolkata?

October is one of the best times of the year to fly to Kolkata from Seattle. Prices for October average C$ 1,587 per person but you can even find prices for as low as C$ 1,165. The most expensive prices can be found in the month of December. Opting for a October flight can save you 38% on your journey compared to booking in December

When is the cheapest time to fly from Seattle to Kolkata (SEA - CCU)?

When flying from Seattle to Kolkata, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.