Need help booking?
Unpublished phone-only deals available
USM to FLZ: distance & flight time
Ko Samui (Samui Airport) → Sibolga (Dr Ferdinand Lumban Tobing Airport)
558 mi
898 km · 485 nm
1h 41m
estimated nonstop flight time
Same time
time difference · heading south
See live USM→FLZ fares Phone-only fares on this route — call free
Flight time details
558 miles nonstop takes roughly 1h 41m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- 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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 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 USM from FLZ?
The flight distance from Ko Samui (USM) to Sibolga (FLZ) is 558 miles (898 km, 485 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to FLZ?
A nonstop flight takes about 1h 41m 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 cheapest way to fly from USM to FLZ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–FLZ that never appear on search engines, with no booking fees.