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Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–FLZ that never appear on search engines, with no booking fees.