Need help booking?
Unpublished phone-only deals available
HEK to DSO: distance & flight time
Heihe (Heihe Airport) → Hamhung (Sondok Airport)
720 mi
1,159 km · 626 nm
2h 2m
estimated nonstop flight time
+1h
time difference · heading south
See live HEK→DSO fares Phone-only fares on this route — call free
Flight time details
720 miles nonstop takes roughly 2h 2m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- HEK — Heihe Airport · Heihe, China
- 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 HEK
- BQS · Ignatyevo Airport18 mi away
- DTU · Wudalianchi Dedu Airport131 mi away
- JGD · Jiagedaqi Airport142 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 HEK from DSO?
The flight distance from Heihe (HEK) to Hamhung (DSO) is 720 miles (1,159 km, 626 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HEK to DSO?
A nonstop flight takes about 2h 2m 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 Heihe and Hamhung?
Hamhung is 1 hour ahead of Heihe.
What is the cheapest way to fly from HEK to DSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HEK–DSO that never appear on search engines, with no booking fees.