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HDN to KOS: distance & flight time
Hayden (Yampa Valley Airport) → Sihanoukville (Sihanoukville International Airport)
8,396 mi
13,511 km · 7,296 nm
16h 56m
estimated nonstop flight time
+13h
time difference · heading northwest
See live HDN→KOS fares Phone-only fares on this route — call free
Flight time details
8,396 miles nonstop takes roughly 16h 56m 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
- HDN — Yampa Valley Airport · Hayden, 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 HDN
- SBS · Steamboat Springs Bob Adams Field19 mi away
- EGE · Eagle County Regional Airport60 mi away
- SAA · Shively Field70 mi away
- RIL · Garfield County Regional Airport71 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 HDN from KOS?
The flight distance from Hayden (HDN) to Sihanoukville (KOS) is 8,396 miles (13,511 km, 7,296 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HDN to KOS?
A nonstop flight takes about 16h 56m 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 Hayden and Sihanoukville?
Sihanoukville is 13 hours ahead of Hayden.
What is the cheapest way to fly from HDN to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HDN–KOS that never appear on search engines, with no booking fees.