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RUI to KOS: distance & flight time
Ruidoso (Sierra Blanca Regional Airport) → Sihanoukville (Sihanoukville International Airport)
8,840 mi
14,226 km · 7,681 nm
17h 48m
estimated nonstop flight time
+13h
time difference · heading northwest
See live RUI→KOS fares Phone-only fares on this route — call free
Flight time details
8,840 miles nonstop takes roughly 17h 48m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- RUI — Sierra Blanca Regional Airport · Ruidoso, 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 RUI
- ALM · Alamogordo White Sands Regional Airport50 mi away
- HMN · Holloman Air Force Base54 mi away
- ROW · Roswell International Air Center Airport59 mi away
- WSD · Condron Army Air Field92 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 RUI from KOS?
The flight distance from Ruidoso (RUI) to Sihanoukville (KOS) is 8,840 miles (14,226 km, 7,681 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RUI to KOS?
A nonstop flight takes about 17h 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 Ruidoso and Sihanoukville?
Sihanoukville is 13 hours ahead of Ruidoso.
What is the cheapest way to fly from RUI to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RUI–KOS that never appear on search engines, with no booking fees.