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OSN to DSO: distance & flight time
Osan (Osan Air Base) → Hamhung (Sondok Airport)
185 mi
298 km · 161 nm
57m
estimated nonstop flight time
Same time
time difference · heading north
See live OSN→DSO fares Phone-only fares on this route — call free
Flight time details
185 miles nonstop takes roughly 57m 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
- OSN — Osan Air Base · Osan, South Korea
- DSO — Sondok Airport · Hamhung, North 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 OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 mi away
Near DSO
- WOS · Wonsan Kalma International Airport40 mi away
- FNJ · Pyongyang Sunan International Airport103 mi away
- YNY · Yangyang International Airport133 mi away
Frequently asked questions
How far is OSN from DSO?
The flight distance from Osan (OSN) to Hamhung (DSO) is 185 miles (298 km, 161 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to DSO?
A nonstop flight takes about 57m 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 OSN to DSO?
Nonstop service on OSN–DSO 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 57m nonstop estimate.
What is the cheapest way to fly from OSN to DSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–DSO that never appear on search engines, with no booking fees.
Why are some OSN to DSO fares phone-only?
Consolidator contracts let us sell certain OSN–DSO 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.