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OSN to FSD: distance & flight time
Osan (Osan Air Base) → Sioux Falls (Joe Foss Field Airport)
6,224 mi
10,017 km · 5,409 nm
12h 40m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→FSD fares Phone-only fares on this route — call free
Flight time details
6,224 miles nonstop takes roughly 12h 40m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- FSD — Joe Foss Field Airport · Sioux 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 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 FSD
- YKN · Chan Gurney Municipal Airport56 mi away
- MHE · Mitchell Municipal Airport66 mi away
- SPW · Spencer Municipal Airport82 mi away
- SUX · Sioux Gateway Col. Bud Day Field83 mi away
Frequently asked questions
How far is OSN from FSD?
The flight distance from Osan (OSN) to Sioux Falls (FSD) is 6,224 miles (10,017 km, 5,409 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to FSD?
A nonstop flight takes about 12h 40m 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 FSD?
Nonstop service on OSN–FSD 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 40m nonstop estimate.
What is the time difference between Osan and Sioux Falls?
Sioux Falls is 14 hours behind Osan.
What is the cheapest way to fly from OSN to FSD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–FSD that never appear on search engines, with no booking fees.
Why are some OSN to FSD fares phone-only?
Consolidator contracts let us sell certain OSN–FSD 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.