Need help booking?
Unpublished phone-only deals available
FLZ to ISN: distance & flight time
Sibolga (Dr Ferdinand Lumban Tobing Airport) → Williston (Sloulin Field International Airport)
8,743 mi
14,071 km · 7,598 nm
17h 37m
estimated nonstop flight time
-12h
time difference · heading north
See live FLZ→ISN fares Phone-only fares on this route — call free
Flight time details
8,743 miles nonstop takes roughly 17h 37m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- FLZ — Dr Ferdinand Lumban Tobing Airport · Sibolga, Indonesia
- ISN — Sloulin Field International Airport · Williston, 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 ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 mi away
Frequently asked questions
How far is FLZ from ISN?
The flight distance from Sibolga (FLZ) to Williston (ISN) is 8,743 miles (14,071 km, 7,598 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FLZ to ISN?
A nonstop flight takes about 17h 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 Williston?
Williston is 12 hours behind Sibolga.
What is the cheapest way to fly from FLZ to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FLZ–ISN that never appear on search engines, with no booking fees.