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ALN to RAP: distance & flight time
Alton/St Louis (St Louis Regional Airport) → Rapid City (Rapid City Regional Airport)
761 mi
1,224 km · 661 nm
2h 7m
estimated nonstop flight time
—
time difference · heading northwest
See live ALN→RAP fares Phone-only fares on this route — call free
Flight time details
761 miles nonstop takes roughly 2h 7m 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.
The two airports
- ALN — St Louis Regional Airport · Alton/St Louis, United States
- RAP — Rapid City Regional Airport · 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 ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Near RAP
- RCA · Ellsworth Air Force Base7 mi away
- SPF · Black Hills Airport-Clyde Ice Field47 mi away
- CDR · Chadron Municipal Airport83 mi away
- GCC · Gillette Campbell County Airport125 mi away
Frequently asked questions
How far is ALN from RAP?
The flight distance from Alton/St Louis (ALN) to Rapid City (RAP) is 761 miles (1,224 km, 661 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALN to RAP?
A nonstop flight takes about 2h 7m 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 ALN to RAP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALN–RAP that never appear on search engines, with no booking fees.