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SUS to KOS: distance & flight time
Null (Spirit of St Louis Airport) → Sihanoukville (Sihanoukville International Airport)
8,912 mi
14,343 km · 7,744 nm
17h 56m
estimated nonstop flight time
+12h
time difference · heading north
See live SUS→KOS fares Phone-only fares on this route — call free
Flight time details
8,912 miles nonstop takes roughly 17h 56m gate to gate, flying north. 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
- SUS — Spirit of St Louis Airport · Null, 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 SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 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 SUS from KOS?
The flight distance from Null (SUS) to Sihanoukville (KOS) is 8,912 miles (14,343 km, 7,744 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SUS to KOS?
A nonstop flight takes about 17h 56m 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 Null and Sihanoukville?
Sihanoukville is 12 hours ahead of Null.
What is the cheapest way to fly from SUS to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SUS–KOS that never appear on search engines, with no booking fees.