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KMJ to SPF: distance & flight time
Kumamoto (Kumamoto Airport) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
6,088 mi
9,797 km · 5,290 nm
12h 24m
estimated nonstop flight time
-15h
time difference · heading northeast
See live KMJ→SPF fares Phone-only fares on this route — call free
Flight time details
6,088 miles nonstop takes roughly 12h 24m 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
- KMJ — Kumamoto Airport · Kumamoto, Japan
- 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 KMJ
- HSG · Saga Airport39 mi away
- AXJ · Amakusa Airport47 mi away
- NGS · Nagasaki Airport55 mi away
- FUK · Fukuoka Airport57 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 KMJ from SPF?
The flight distance from Kumamoto (KMJ) to Spearfish-South Dakota (SPF) is 6,088 miles (9,797 km, 5,290 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KMJ to SPF?
A nonstop flight takes about 12h 24m 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 Kumamoto and Spearfish-South Dakota?
Spearfish-South Dakota is 15 hours behind Kumamoto.
What is the cheapest way to fly from KMJ to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KMJ–SPF that never appear on search engines, with no booking fees.