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KOS to SFZ: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Smithfield (North Central State Airport)
8,796 mi
14,156 km · 7,644 nm
17h 43m
estimated nonstop flight time
-11h
time difference · heading north
See live KOS→SFZ fares Phone-only fares on this route — call free
Flight time details
8,796 miles nonstop takes roughly 17h 43m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- SFZ — North Central State Airport · Smithfield, 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 KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 mi away
Near SFZ
- BOS · General Edward Lawrence Logan International Airport39 mi away
- PVD · Theodore Francis Green State Airport14 mi away
- NCO · Quonset State Airport23 mi away
- OWD · Norwood Memorial Airport25 mi away
Frequently asked questions
How far is KOS from SFZ?
The flight distance from Sihanoukville (KOS) to Smithfield (SFZ) is 8,796 miles (14,156 km, 7,644 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to SFZ?
A nonstop flight takes about 17h 43m 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 Sihanoukville and Smithfield?
Smithfield is 11 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to SFZ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–SFZ that never appear on search engines, with no booking fees.