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SYX to BFI: distance & flight time
Sanya (Sanya Phoenix International Airport) → Seattle (Boeing Field King County International Airport)
6,877 mi
11,067 km · 5,976 nm
13h 57m
estimated nonstop flight time
-15h
time difference · heading northeast
See live SYX→BFI fares Phone-only fares on this route — call free
Flight time details
6,877 miles nonstop takes roughly 13h 57m 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
- SYX — Sanya Phoenix International Airport · Sanya, 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 SYX
- BAR · Qionghai Bo'ao Airport89 mi away
- HAK · Haikou Meilan International Airport132 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 SYX from BFI?
The flight distance from Sanya (SYX) to Seattle (BFI) is 6,877 miles (11,067 km, 5,976 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SYX to BFI?
A nonstop flight takes about 13h 57m 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 Sanya and Seattle?
Seattle is 15 hours behind Sanya.
What is the cheapest way to fly from SYX to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SYX–BFI that never appear on search engines, with no booking fees.