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KOS to HMY: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Seosan (Seosan Air Base)
2,299 mi
3,701 km · 1,998 nm
4h 59m
estimated nonstop flight time
—
time difference · heading northeast
See live KOS→HMY fares Phone-only fares on this route — call free
Flight time details
2,299 miles nonstop takes roughly 4h 59m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- HMY — Seosan Air Base · Seosan, South Korea
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 HMY
- ICN · Incheon International Airport53 mi away
- OSN · Osan Air Base40 mi away
- SWU · Suwon Airport47 mi away
- KUV · Kunsan Air Base56 mi away
Frequently asked questions
How far is KOS from HMY?
The flight distance from Sihanoukville (KOS) to Seosan (HMY) is 2,299 miles (3,701 km, 1,998 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to HMY?
A nonstop flight takes about 4h 59m 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 cheapest way to fly from KOS to HMY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–HMY that never appear on search engines, with no booking fees.