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YRM to KOS: distance & flight time
Rocky Mountain House (Rocky Mountain House Airport) → Sihanoukville (Sihanoukville International Airport)
7,522 mi
12,105 km · 6,536 nm
15h 13m
estimated nonstop flight time
+13h
time difference · heading northwest
See live YRM→KOS fares Phone-only fares on this route — call free
Flight time details
7,522 miles nonstop takes roughly 15h 13m 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
- YRM — Rocky Mountain House Airport · Rocky Mountain House, Canada
- 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 YRM
- YQF · Red Deer Regional Airport46 mi away
- YEG · Edmonton International Airport82 mi away
- YBA · Banff Airport89 mi away
- YXD · Edmonton City Centre (Blatchford Field) Airport98 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 YRM from KOS?
The flight distance from Rocky Mountain House (YRM) to Sihanoukville (KOS) is 7,522 miles (12,105 km, 6,536 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YRM to KOS?
A nonstop flight takes about 15h 13m 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 Rocky Mountain House and Sihanoukville?
Sihanoukville is 13 hours ahead of Rocky Mountain House.
What is the cheapest way to fly from YRM to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YRM–KOS that never appear on search engines, with no booking fees.