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DSM to OSN: distance & flight time
Des Moines (Des Moines International Airport) → Osan (Osan Air Base)
6,428 mi
10,344 km · 5,586 nm
13h 4m
estimated nonstop flight time
+14h
time difference · heading northwest
See live DSM→OSN fares Phone-only fares on this route — call free
Flight time details
6,428 miles nonstop takes roughly 13h 4m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- DSM — Des Moines International Airport · Des Moines, 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 DSM
- OTM · Ottumwa Regional Airport70 mi away
- FOD · Fort Dodge Regional Airport75 mi away
- ALO · Waterloo Regional Airport96 mi away
- CID · The Eastern Iowa Airport104 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 DSM from OSN?
The flight distance from Des Moines (DSM) to Osan (OSN) is 6,428 miles (10,344 km, 5,586 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DSM to OSN?
A nonstop flight takes about 13h 4m 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 Des Moines and Osan?
Osan is 14 hours ahead of Des Moines.
What is the cheapest way to fly from DSM to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DSM–OSN that never appear on search engines, with no booking fees.