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NXX to SPF: distance & flight time
Willow Grove (Willow Grove Naval Air Station/Joint Reserve Base) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
1,484 mi
2,388 km · 1,290 nm
3h 42m
estimated nonstop flight time
-2h
time difference · heading west
See live NXX→SPF fares Phone-only fares on this route — call free
Flight time details
1,484 miles nonstop takes roughly 3h 42m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- NXX — Willow Grove Naval Air Station/Joint Reserve Base · Willow Grove, United States
- 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 NXX
- PHL · Philadelphia International Airport23 mi away
- BBX · Wings Field8 mi away
- DYL · Doylestown Airport9 mi away
- PNE · Northeast Philadelphia Airport11 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 NXX from SPF?
The flight distance from Willow Grove (NXX) to Spearfish-South Dakota (SPF) is 1,484 miles (2,388 km, 1,290 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NXX to SPF?
A nonstop flight takes about 3h 42m 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 Willow Grove and Spearfish-South Dakota?
Spearfish-South Dakota is 2 hours behind Willow Grove.
What is the cheapest way to fly from NXX to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NXX–SPF that never appear on search engines, with no booking fees.