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FSI to RCA: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Rapid City (Ellsworth Air Force Base)
702 mi
1,130 km · 610 nm
2h
estimated nonstop flight time
-1h
time difference · heading north
See live FSI→RCA fares Phone-only fares on this route — call free
Flight time details
702 miles nonstop takes roughly 2h gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- RCA — Ellsworth Air Force Base · Rapid City, 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 FSI
- LAW · Lawton Fort Sill Regional Airport6 mi away
- DUC · Halliburton Field28 mi away
- HBR · Hobart Regional Airport44 mi away
- SPS · Sheppard Air Force Base-Wichita Falls Municipal Airport46 mi away
Near RCA
- RAP · Rapid City Regional Airport7 mi away
- SPF · Black Hills Airport-Clyde Ice Field41 mi away
- CDR · Chadron Municipal Airport90 mi away
- GCC · Gillette Campbell County Airport121 mi away
Frequently asked questions
How far is FSI from RCA?
The flight distance from Fort Sill (FSI) to Rapid City (RCA) is 702 miles (1,130 km, 610 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to RCA?
A nonstop flight takes about 2h 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 Fort Sill and Rapid City?
Rapid City is 1 hour behind Fort Sill.
What is the cheapest way to fly from FSI to RCA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–RCA that never appear on search engines, with no booking fees.