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IWJ to SPF: distance & flight time
Iwami (Iwami Airport) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
5,953 mi
9,581 km · 5,173 nm
12h 8m
estimated nonstop flight time
-15h
time difference · heading northeast
See live IWJ→SPF fares Phone-only fares on this route — call free
Flight time details
5,953 miles nonstop takes roughly 12h 8m 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
- IWJ — Iwami Airport · Iwami, 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 IWJ
- HIW · Hiroshimanishi Airport41 mi away
- IWK · Iwakuni Marine Corps Air Station45 mi away
- UBJ · Yamaguchi Ube Airport59 mi away
- HIJ · Hiroshima Airport66 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 IWJ from SPF?
The flight distance from Iwami (IWJ) to Spearfish-South Dakota (SPF) is 5,953 miles (9,581 km, 5,173 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IWJ to SPF?
A nonstop flight takes about 12h 8m 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 Iwami and Spearfish-South Dakota?
Spearfish-South Dakota is 15 hours behind Iwami.
What is the cheapest way to fly from IWJ to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IWJ–SPF that never appear on search engines, with no booking fees.