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SPF to KUM: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Yakushima (Yakushima Airport)
6,232 mi
10,030 km · 5,416 nm
12h 41m
estimated nonstop flight time
+15h
time difference · heading northwest
See live SPF→KUM fares Phone-only fares on this route — call free
Flight time details
6,232 miles nonstop takes roughly 12h 41m 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
- KUM — Yakushima Airport · Yakushima, Japan
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 KUM
- TNE · New Tanegashima Airport25 mi away
- KOJ · Kagoshima Airport98 mi away
- KMI · Miyazaki Airport113 mi away
- ASJ · Amami Airport147 mi away
Frequently asked questions
How far is SPF from KUM?
The flight distance from Spearfish-South Dakota (SPF) to Yakushima (KUM) is 6,232 miles (10,030 km, 5,416 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to KUM?
A nonstop flight takes about 12h 41m 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 Yakushima?
Yakushima is 15 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to KUM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–KUM that never appear on search engines, with no booking fees.