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OSN to SPW: distance & flight time
Osan (Osan Air Base) → Spencer (Spencer Municipal Airport)
6,291 mi
10,124 km · 5,466 nm
12h 48m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→SPW fares Phone-only fares on this route — call free
Flight time details
6,291 miles nonstop takes roughly 12h 48m 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
- SPW — Spencer Municipal Airport · Spencer, 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 SPW
- FOD · Fort Dodge Regional Airport66 mi away
- SUX · Sioux Gateway Col. Bud Day Field80 mi away
- FSD · Joe Foss Field Airport82 mi away
- MCW · Mason City Municipal Airport94 mi away
Frequently asked questions
How far is OSN from SPW?
The flight distance from Osan (OSN) to Spencer (SPW) is 6,291 miles (10,124 km, 5,466 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to SPW?
A nonstop flight takes about 12h 48m 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 Osan and Spencer?
Spencer is 14 hours behind Osan.
What is the cheapest way to fly from OSN to SPW?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–SPW that never appear on search engines, with no booking fees.