Need help booking?
Unpublished phone-only deals available
HSN to BFI: distance & flight time
Zhoushan (Zhoushan Airport) → Seattle (Boeing Field King County International Airport)
5,751 mi
9,256 km · 4,998 nm
11h 45m
estimated nonstop flight time
-15h
time difference · heading northeast
See live HSN→BFI fares Phone-only fares on this route — call free
Flight time details
5,751 miles nonstop takes roughly 11h 45m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- HSN — Zhoushan Airport · Zhoushan, China
- BFI — Boeing Field King County International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near HSN
- NGB · Ningbo Lishe International Airport54 mi away
- PVG · Shanghai Pudong International Airport90 mi away
- SHA · Shanghai Hongqiao International Airport107 mi away
- HYN · Huangyan Luqiao Airport110 mi away
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Frequently asked questions
How far is HSN from BFI?
The flight distance from Zhoushan (HSN) to Seattle (BFI) is 5,751 miles (9,256 km, 4,998 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HSN to BFI?
A nonstop flight takes about 11h 45m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Zhoushan and Seattle?
Seattle is 15 hours behind Zhoushan.
What is the cheapest way to fly from HSN to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HSN–BFI that never appear on search engines, with no booking fees.