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RAP to OSN: distance & flight time
Rapid City (Rapid City Regional Airport) → Osan (Osan Air Base)
6,015 mi
9,680 km · 5,227 nm
12h 16m
estimated nonstop flight time
+15h
time difference · heading northwest
See live RAP→OSN fares Phone-only fares on this route — call free
Flight time details
6,015 miles nonstop takes roughly 12h 16m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- RAP — Rapid City Regional Airport · Rapid City, United States
- OSN — Osan Air Base · Osan, South Korea
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 OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 mi away
Frequently asked questions
How far is RAP from OSN?
The flight distance from Rapid City (RAP) to Osan (OSN) is 6,015 miles (9,680 km, 5,227 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RAP to OSN?
A nonstop flight takes about 12h 16m 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 Osan?
Osan is 15 hours ahead of Rapid City.
What is the cheapest way to fly from RAP to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RAP–OSN that never appear on search engines, with no booking fees.