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ISN to DSO: distance & flight time
Williston (Sloulin Field International Airport) → Hamhung (Sondok Airport)
5,604 mi
9,019 km · 4,870 nm
11h 27m
estimated nonstop flight time
+14h
time difference · heading northwest
See live ISN→DSO fares Phone-only fares on this route — call free
Flight time details
5,604 miles nonstop takes roughly 11h 27m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- 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 ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 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 ISN from DSO?
The flight distance from Williston (ISN) to Hamhung (DSO) is 5,604 miles (9,019 km, 4,870 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to DSO?
A nonstop flight takes about 11h 27m 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 Williston and Hamhung?
Hamhung is 14 hours ahead of Williston.
What is the cheapest way to fly from ISN to DSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–DSO that never appear on search engines, with no booking fees.