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RAP to IDA: distance & flight time
Rapid City (Rapid City Regional Airport) → Idaho Falls (Idaho Falls Regional Airport)
451 mi
726 km · 392 nm
1h 27m
estimated nonstop flight time
Same time
time difference · heading west
See live RAP→IDA fares Phone-only fares on this route — call free
Flight time details
451 miles nonstop takes roughly 1h 27m gate to gate, flying west. 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
- RAP — Rapid City Regional Airport · Rapid City, United States
- IDA — Idaho Falls Regional Airport · Idaho Falls, 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 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
Near IDA
- PIH · Pocatello Regional Airport49 mi away
- JAC · Jackson Hole Airport67 mi away
- WYS · Yellowstone Airport94 mi away
- BYI · Burley Municipal Airport109 mi away
Frequently asked questions
How far is RAP from IDA?
The flight distance from Rapid City (RAP) to Idaho Falls (IDA) is 451 miles (726 km, 392 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RAP to IDA?
A nonstop flight takes about 1h 27m 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 RAP to IDA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RAP–IDA that never appear on search engines, with no booking fees.