Need help booking?
Unpublished phone-only deals available
FSD to KOS: distance & flight time
Sioux Falls (Joe Foss Field Airport) → Sihanoukville (Sihanoukville International Airport)
8,481 mi
13,649 km · 7,370 nm
17h 6m
estimated nonstop flight time
+12h
time difference · heading northwest
See live FSD→KOS fares Phone-only fares on this route — call free
Flight time details
8,481 miles nonstop takes roughly 17h 6m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- FSD — Joe Foss Field Airport · Sioux Falls, United States
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
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 FSD
- YKN · Chan Gurney Municipal Airport56 mi away
- MHE · Mitchell Municipal Airport66 mi away
- SPW · Spencer Municipal Airport82 mi away
- SUX · Sioux Gateway Col. Bud Day Field83 mi away
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
Frequently asked questions
How far is FSD from KOS?
The flight distance from Sioux Falls (FSD) to Sihanoukville (KOS) is 8,481 miles (13,649 km, 7,370 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSD to KOS?
A nonstop flight takes about 17h 6m 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 Sioux Falls and Sihanoukville?
Sihanoukville is 12 hours ahead of Sioux Falls.
What is the cheapest way to fly from FSD to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSD–KOS that never appear on search engines, with no booking fees.