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DSO to STL: distance & flight time
Hamhung (Sondok Airport) → St. Louis (St Louis Lambert International Airport)
6,509 mi
10,475 km · 5,656 nm
13h 14m
estimated nonstop flight time
-14h
time difference · heading northeast
See live DSO→STL fares Phone-only fares on this route — call free
Flight time details
6,509 miles nonstop takes roughly 13h 14m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- DSO — Sondok Airport · Hamhung, North Korea
- STL — St Louis Lambert International Airport · St. Louis, 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 STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Frequently asked questions
How far is DSO from STL?
The flight distance from Hamhung (DSO) to St. Louis (STL) is 6,509 miles (10,475 km, 5,656 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DSO to STL?
A nonstop flight takes about 13h 14m 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 STL?
Nonstop service on DSO–STL 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 13h 14m nonstop estimate.
What is the time difference between Hamhung and St. Louis?
St. Louis is 14 hours behind Hamhung.
What is the cheapest way to fly from DSO to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DSO–STL that never appear on search engines, with no booking fees.
Why are some DSO to STL fares phone-only?
Consolidator contracts let us sell certain DSO–STL 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.