Need help booking?
Unpublished phone-only deals available
KOS to NBO: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Nairobi (Jomo Kenyatta International Airport)
4,657 mi
7,494 km · 4,047 nm
9h 36m
estimated nonstop flight time
-4h
time difference · heading west
See live KOS→NBO fares Phone-only fares on this route — call free
Flight time details
4,657 miles nonstop takes roughly 9h 36m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- NBO — Jomo Kenyatta International Airport · Nairobi, Kenya
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 NBO
- WIL · Nairobi Wilson Airport8 mi away
- NYE · Nyeri Airport66 mi away
- NYK · Nanyuki Airport87 mi away
- ASV · Amboseli Airport94 mi away
Frequently asked questions
How far is KOS from NBO?
The flight distance from Sihanoukville (KOS) to Nairobi (NBO) is 4,657 miles (7,494 km, 4,047 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to NBO?
A nonstop flight takes about 9h 36m 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 Nairobi?
Nairobi is 4 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to NBO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–NBO that never appear on search engines, with no booking fees.