Need help booking?
Unpublished phone-only deals available
DSO to SPF: distance & flight time
Hamhung (Sondok Airport) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
5,803 mi
9,340 km · 5,043 nm
11h 51m
estimated nonstop flight time
-15h
time difference · heading northeast
See live DSO→SPF fares Phone-only fares on this route — call free
Flight time details
5,803 miles nonstop takes roughly 11h 51m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- DSO — Sondok Airport · Hamhung, North Korea
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, United States
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 SPF
- RCA · Ellsworth Air Force Base41 mi away
- RAP · Rapid City Regional Airport47 mi away
- GCC · Gillette Campbell County Airport87 mi away
- CDR · Chadron Municipal Airport119 mi away
Frequently asked questions
How far is DSO from SPF?
The flight distance from Hamhung (DSO) to Spearfish-South Dakota (SPF) is 5,803 miles (9,340 km, 5,043 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DSO to SPF?
A nonstop flight takes about 11h 51m 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 SPF?
Nonstop service on DSO–SPF 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 11h 51m nonstop estimate.
What is the time difference between Hamhung and Spearfish-South Dakota?
Spearfish-South Dakota is 15 hours behind Hamhung.
What is the cheapest way to fly from DSO to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DSO–SPF that never appear on search engines, with no booking fees.
Why are some DSO to SPF fares phone-only?
Consolidator contracts let us sell certain DSO–SPF 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.