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SPF to KMI: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Miyazaki (Miyazaki Airport)
6,121 mi
9,851 km · 5,319 nm
12h 28m
estimated nonstop flight time
+15h
time difference · heading northwest
See live SPF→KMI fares Phone-only fares on this route — call free
Flight time details
6,121 miles nonstop takes roughly 12h 28m 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
- KMI — Miyazaki Airport · Miyazaki, 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 KMI
- KOJ · Kagoshima Airport43 mi away
- KMJ · Kumamoto Airport75 mi away
- AXJ · Amakusa Airport86 mi away
- TNE · New Tanegashima Airport92 mi away
Frequently asked questions
How far is SPF from KMI?
The flight distance from Spearfish-South Dakota (SPF) to Miyazaki (KMI) is 6,121 miles (9,851 km, 5,319 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to KMI?
A nonstop flight takes about 12h 28m 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 Miyazaki?
Miyazaki is 15 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to KMI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–KMI that never appear on search engines, with no booking fees.