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SPF to YNY: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Sokcho / Gangneung (Yangyang International Airport)
5,863 mi
9,436 km · 5,095 nm
11h 58m
estimated nonstop flight time
+15h
time difference · heading northwest
See live SPF→YNY fares Phone-only fares on this route — call free
Flight time details
5,863 miles nonstop takes roughly 11h 58m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, United States
- YNY — Yangyang International Airport · Sokcho / Gangneung, South 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 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
Near YNY
- KAG · Gangneung Airport (K-18)26 mi away
- WJU · Wonju/Hoengseong Air Base (K-38/K-46)58 mi away
- ICN · Incheon International Airport128 mi away
- SSN · Seoul Air Base (K-16)95 mi away
Frequently asked questions
How far is SPF from YNY?
The flight distance from Spearfish-South Dakota (SPF) to Sokcho / Gangneung (YNY) is 5,863 miles (9,436 km, 5,095 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to YNY?
A nonstop flight takes about 11h 58m 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 Spearfish-South Dakota and Sokcho / Gangneung?
Sokcho / Gangneung is 15 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to YNY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–YNY that never appear on search engines, with no booking fees.