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OSN to SUS: distance & flight time
Osan (Osan Air Base) → Null (Spirit of St Louis Airport)
6,679 mi
10,749 km · 5,804 nm
13h 34m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→SUS fares Phone-only fares on this route — call free
Flight time details
6,679 miles nonstop takes roughly 13h 34m 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
- SUS — Spirit of St Louis Airport · Null, 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 SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 mi away
Frequently asked questions
How far is OSN from SUS?
The flight distance from Osan (OSN) to Null (SUS) is 6,679 miles (10,749 km, 5,804 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to SUS?
A nonstop flight takes about 13h 34m 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 Null?
Null is 14 hours behind Osan.
What is the cheapest way to fly from OSN to SUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–SUS that never appear on search engines, with no booking fees.