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RAP to DUC: distance & flight time
Rapid City (Rapid City Regional Airport) → Duncan (Halliburton Field)
715 mi
1,151 km · 621 nm
2h 1m
estimated nonstop flight time
+1h
time difference · heading southeast
See live RAP→DUC fares Phone-only fares on this route — call free
Flight time details
715 miles nonstop takes roughly 2h 1m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- RAP — Rapid City Regional Airport · Rapid City, United States
- DUC — Halliburton Field · Duncan, 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 DUC
Frequently asked questions
How far is RAP from DUC?
The flight distance from Rapid City (RAP) to Duncan (DUC) is 715 miles (1,151 km, 621 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RAP to DUC?
A nonstop flight takes about 2h 1m 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 Rapid City and Duncan?
Duncan is 1 hour ahead of Rapid City.
What is the cheapest way to fly from RAP to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RAP–DUC that never appear on search engines, with no booking fees.