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FLZ to BFI: distance & flight time
Sibolga (Dr Ferdinand Lumban Tobing Airport) → Seattle (Boeing Field King County International Airport)
8,236 mi
13,255 km · 7,157 nm
16h 37m
estimated nonstop flight time
-14h
time difference · heading northeast
See live FLZ→BFI fares Phone-only fares on this route — call free
Flight time details
8,236 miles nonstop takes roughly 16h 37m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- FLZ — Dr Ferdinand Lumban Tobing Airport · Sibolga, Indonesia
- 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 FLZ
- AEG · Aek Godang Airport39 mi away
- DTB · Silangit Airport49 mi away
- GNS · Binaka Airport86 mi away
- PPR · Pasir Pangaraan Airport113 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 FLZ from BFI?
The flight distance from Sibolga (FLZ) to Seattle (BFI) is 8,236 miles (13,255 km, 7,157 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FLZ to BFI?
A nonstop flight takes about 16h 37m 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 Sibolga and Seattle?
Seattle is 14 hours behind Sibolga.
What is the cheapest way to fly from FLZ to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FLZ–BFI that never appear on search engines, with no booking fees.