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OSN to RAP: distance & flight time
Osan (Osan Air Base) → Rapid City (Rapid City Regional Airport)
6,015 mi
9,680 km · 5,227 nm
12h 16m
estimated nonstop flight time
-15h
time difference · heading northeast
See live OSN→RAP fares Phone-only fares on this route — call free
Flight time details
6,015 miles nonstop takes roughly 12h 16m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- 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 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
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 OSN from RAP?
The flight distance from Osan (OSN) to Rapid City (RAP) 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 OSN to RAP?
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.
Are there nonstop flights from OSN to RAP?
Nonstop service on OSN–RAP depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 12h 16m nonstop estimate.
What is the time difference between Osan and Rapid City?
Rapid City is 15 hours behind Osan.
What is the cheapest way to fly from OSN to RAP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–RAP that never appear on search engines, with no booking fees.
Why are some OSN to RAP fares phone-only?
Consolidator contracts let us sell certain OSN–RAP tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.