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DSO to HEK: distance & flight time
Hamhung (Sondok Airport) → Heihe (Heihe Airport)
720 mi
1,159 km · 626 nm
2h 2m
estimated nonstop flight time
-1h
time difference · heading north
See live DSO→HEK fares Phone-only fares on this route — call free
Flight time details
720 miles nonstop takes roughly 2h 2m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- DSO — Sondok Airport · Hamhung, North Korea
- HEK — Heihe Airport · Heihe, China
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 DSO
- WOS · Wonsan Kalma International Airport40 mi away
- FNJ · Pyongyang Sunan International Airport103 mi away
- YNY · Yangyang International Airport133 mi away
Near HEK
- BQS · Ignatyevo Airport18 mi away
- DTU · Wudalianchi Dedu Airport131 mi away
- JGD · Jiagedaqi Airport142 mi away
Frequently asked questions
How far is DSO from HEK?
The flight distance from Hamhung (DSO) to Heihe (HEK) is 720 miles (1,159 km, 626 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DSO to HEK?
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.
Are there nonstop flights from DSO to HEK?
Nonstop service on DSO–HEK 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 2h 2m nonstop estimate.
What is the time difference between Hamhung and Heihe?
Heihe is 1 hour behind Hamhung.
What is the cheapest way to fly from DSO to HEK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DSO–HEK that never appear on search engines, with no booking fees.
Why are some DSO to HEK fares phone-only?
Consolidator contracts let us sell certain DSO–HEK 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.