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SIR to DSO: distance & flight time
Sion (Sion Airport) → Hamhung (Sondok Airport)
5,444 mi
8,761 km · 4,730 nm
11h 8m
estimated nonstop flight time
+7h
time difference · heading northeast
See live SIR→DSO fares Phone-only fares on this route — call free
Flight time details
5,444 miles nonstop takes roughly 11h 8m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- 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 SIR
- AOT · Aosta Airport33 mi away
- QLS · Lausanne-Blécherette Airport41 mi away
- ZIN · Interlaken Air Base41 mi away
- MVV · Megève Airport43 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 SIR from DSO?
The flight distance from Sion (SIR) to Hamhung (DSO) is 5,444 miles (8,761 km, 4,730 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to DSO?
A nonstop flight takes about 11h 8m 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 Sion and Hamhung?
Hamhung is 7 hours ahead of Sion.
What is the cheapest way to fly from SIR to DSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–DSO that never appear on search engines, with no booking fees.