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WBU to FLZ: distance & flight time
Boulder (Boulder Municipal Airport) → Sibolga (Dr Ferdinand Lumban Tobing Airport)
9,184 mi
14,781 km · 7,981 nm
18h 29m
estimated nonstop flight time
+13h
time difference · heading northwest
See live WBU→FLZ fares Phone-only fares on this route — call free
Flight time details
9,184 miles nonstop takes roughly 18h 29m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, 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 WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 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 WBU from FLZ?
The flight distance from Boulder (WBU) to Sibolga (FLZ) is 9,184 miles (14,781 km, 7,981 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to FLZ?
A nonstop flight takes about 18h 29m 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 Boulder and Sibolga?
Sibolga is 13 hours ahead of Boulder.
What is the cheapest way to fly from WBU to FLZ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–FLZ that never appear on search engines, with no booking fees.