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NJA to SPF: distance & flight time
Atsugi (Atsugi Naval Air Facility) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
5,644 mi
9,083 km · 4,904 nm
11h 32m
estimated nonstop flight time
-15h
time difference · heading northeast
See live NJA→SPF fares Phone-only fares on this route — call free
Flight time details
5,644 miles nonstop takes roughly 11h 32m 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
- NJA — Atsugi Naval Air Facility · Atsugi, 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 NJA
- HND · Tokyo Haneda International Airport20 mi away
- NRT · Narita International Airport57 mi away
- OKO · Yokota Air Base21 mi away
- OIM · Oshima Airport47 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 NJA from SPF?
The flight distance from Atsugi (NJA) to Spearfish-South Dakota (SPF) is 5,644 miles (9,083 km, 4,904 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NJA to SPF?
A nonstop flight takes about 11h 32m 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 Atsugi and Spearfish-South Dakota?
Spearfish-South Dakota is 15 hours behind Atsugi.
What is the cheapest way to fly from NJA to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NJA–SPF that never appear on search engines, with no booking fees.