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KOS to VDH: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Dong Hoi (Dong Hoi Airport)
518 mi
834 km · 450 nm
1h 36m
estimated nonstop flight time
Same time
time difference · heading north
See live KOS→VDH fares Phone-only fares on this route — call free
Flight time details
518 miles nonstop takes roughly 1h 36m gate to gate, flying north. 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
- VDH — Dong Hoi Airport · Dong Hoi, Vietnam
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 VDH
- VII · Vinh Airport104 mi away
- HUI · Phu Bai Airport106 mi away
- VNA · Saravane Airport125 mi away
- KOP · Nakhon Phanom Airport129 mi away
Frequently asked questions
How far is KOS from VDH?
The flight distance from Sihanoukville (KOS) to Dong Hoi (VDH) is 518 miles (834 km, 450 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to VDH?
A nonstop flight takes about 1h 36m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from KOS to VDH?
Nonstop service on KOS–VDH depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 36m nonstop estimate.
What is the cheapest way to fly from KOS to VDH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–VDH that never appear on search engines, with no booking fees.
Why are some KOS to VDH fares phone-only?
Consolidator contracts let us sell certain KOS–VDH tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.