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.
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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
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Return Trip Prices by Day
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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!
- Price for both tickets: $935
- Average savings: $2014 (68.3%)
- Price for both tickets: $1245
- Average savings: $1703 (57.77%)
- Price for both tickets: $1328
- Average savings: $1620 (54.95%)
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
Flights to SEA
Flights from SEA
Popular Flights
Flights to HSN
Flights from HSN
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.