The cheapest times to fly from HSN to SEA are

  • May 14th to July 8th
  • September 3rd to October 21st (except the week of September 24th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from HSN to SEA is mid March. Prices can be as high as $4219 for Sunday flights during late March, or as low as $1499 for Tuesday flights around mid March.


When to Fly to Seattle

Flying from Zhoushan (HSN) to Seattle, WA (SEA) will usually cost between $2066 to $3789 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid March with an average ticket price of $1499. Due to high demand the most expensive time to fly is late March, with an average price of $3324. Planning your trip to low-cost times can easily save you $1825 on economy flights and even more on first-class flights. Generally, any price below $2948 can be considered a good price for a round-trip HSN to SEA flight.

See below for a graph of average weekly prices for the HSN to SEA route. All prices are for round-trip tickets in USD.

HSN to SEA Flight Prices

Compared to other flights, the HSN to SEA flight is more expensive than the average and costs more than the average flight leaving from Zhoushan. The average price per mile (for a direct flight) is $0.32, which is in the normal range for a flight.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly to Seattle, and Fridays are the most expensive days to return to Zhoushan. Selecting flights on the least expensive days could save you up to $2435 (43%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $2410. Return trip prices are from the SEA to HSN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from HSN to SEA can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 11 hour 20 minutes may not be realistic.


Flight Hacking HSN to SEA

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from HSN to SEA — but Champion Traveler does!

Hack #1: Los Angeles, CA (HSN > LAX > SEA)

  • Price for both tickets: $935
  • Average savings: $2014 (68.3%)

See HSN to XMN flights

Hack #2: Xiamen (HSN > XMN > SEA)

  • Price for both tickets: $1245
  • Average savings: $1703 (57.77%)

See HSN to LAX flights

Hack #3: Fuzhou (HSN > FOC > SEA)

  • Price for both tickets: $1328
  • Average savings: $1620 (54.95%)

See HSN to FOC flights


Flight Questions Answered

Still have questions about flying from HSN to SEA? We’ve got answers.

Which airlines fly this route?

You can find 16 major airlines flying this route most often: Air China, Alaska, ANA, Asiana, Cathay Pacific, China Eastern, China Southern, Delta, EVA Air, Hainan, JAL, Shandong, Shanghai Airlines, Shenzhen, WestJet, Xiamen, and potentially more during busy seasons.

How far away is it from Seattle/Tacoma International Airport to Zhoushan Airport?

The distance between the two airports is roughly 5753 miles or 9259 kilometers.

How long does it take to fly from HSN to SEA?

The real-world flight time for a nonstop HSN to SEA flight is about 11 hour 20 minutes.

How many flights go between Zhoushan and Seattle, WA?

It depends on the day of the week and the date, but a typical day might have around 6 available flights from HSN to SEA.


Airport Location Info


Departing Airport

Origination code HSN
Origination airport name Zhoushan Airport
City Zhoushan
Country China
Latitude 29.9
Longitude 122.4

Return Airport

Destination code SEA
Destination airport name Seattle/Tacoma International Airport
City Seattle, WA
Country the United States
Latitude 47.5
Longitude -122.3


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.