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SOU to KOS: distance & flight time
Southampton (Southampton Airport) → Sihanoukville (Sihanoukville International Airport)
6,288 mi
10,120 km · 5,464 nm
12h 48m
estimated nonstop flight time
+6h
time difference · heading east
See live SOU→KOS fares Phone-only fares on this route — call free
Flight time details
6,288 miles nonstop takes roughly 12h 48m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- SOU — Southampton Airport · Southampton, United Kingdom
- 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 SOU
- LGW · London Gatwick Airport52 mi away
- LHR · London Heathrow Airport53 mi away
- QLA · Lasham Airport22 mi away
- BBP · Bembridge Airport22 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 SOU from KOS?
The flight distance from Southampton (SOU) to Sihanoukville (KOS) is 6,288 miles (10,120 km, 5,464 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SOU to KOS?
A nonstop flight takes about 12h 48m 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 Southampton and Sihanoukville?
Sihanoukville is 6 hours ahead of Southampton.
What is the cheapest way to fly from SOU to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SOU–KOS that never appear on search engines, with no booking fees.