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KOS to BES: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Brest (Brest Bretagne Airport)
6,475 mi
10,420 km · 5,626 nm
13h 10m
estimated nonstop flight time
-5h
time difference · heading northwest
See live KOS→BES fares Phone-only fares on this route — call free
Flight time details
6,475 miles nonstop takes roughly 13h 10m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- BES — Brest Bretagne Airport · Brest, France
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 BES
- LDV · Landivisiau Air Base13 mi away
- MXN · Morlaix-Ploujean Airport30 mi away
- UIP · Quimper-Cornouaille Airport35 mi away
- LAI · Lannion-Côte de Granit Airport48 mi away
Frequently asked questions
How far is KOS from BES?
The flight distance from Sihanoukville (KOS) to Brest (BES) is 6,475 miles (10,420 km, 5,626 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to BES?
A nonstop flight takes about 13h 10m 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 Brest?
Brest is 5 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to BES?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–BES that never appear on search engines, with no booking fees.