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KOS to NHT: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Northolt (RAF Northolt)
6,237 mi
10,037 km · 5,420 nm
12h 42m
estimated nonstop flight time
-6h
time difference · heading northwest
See live KOS→NHT fares Phone-only fares on this route — call free
Flight time details
6,237 miles nonstop takes roughly 12h 42m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- NHT — RAF Northolt · Northolt, United Kingdom
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 NHT
- LHR · London Heathrow Airport6 mi away
- LGW · London Gatwick Airport30 mi away
- HYC · Wycombe Air Park17 mi away
- LCY · London City Airport21 mi away
Frequently asked questions
How far is KOS from NHT?
The flight distance from Sihanoukville (KOS) to Northolt (NHT) is 6,237 miles (10,037 km, 5,420 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to NHT?
A nonstop flight takes about 12h 42m 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 Northolt?
Northolt is 6 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to NHT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–NHT that never appear on search engines, with no booking fees.