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SPF to IWK: distance & flight time

Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Iwakuni (Iwakuni Marine Corps Air Station)

5,968 mi
9,605 km · 5,186 nm
12h 10m
estimated nonstop flight time
—
time difference · heading northwest
See live SPF→IWK fares Phone-only fares on this route — call free

Flight time details

5,968 miles nonstop takes roughly 12h 10m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.

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The two airports

Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.

Alternate airports can cut this fare

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Frequently asked questions

How far is SPF from IWK?

The flight distance from Spearfish-South Dakota (SPF) to Iwakuni (IWK) is 5,968 miles (9,605 km, 5,186 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from SPF to IWK?

A nonstop flight takes about 12h 10m 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 cheapest way to fly from SPF to IWK?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–IWK that never appear on search engines, with no booking fees.
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