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RMS to OSN: distance & flight time
Ramstein (Ramstein Air Base) → Osan (Osan Air Base)
5,408 mi
8,703 km · 4,699 nm
11h 4m
estimated nonstop flight time
+7h
time difference · heading northeast
See live RMS→OSN fares Phone-only fares on this route — call free
Flight time details
5,408 miles nonstop takes roughly 11h 4m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- RMS — Ramstein Air Base · Ramstein, Germany
- 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 RMS
- ZQW · Zweibrücken Airport18 mi away
- FRA · Frankfurt am Main Airport60 mi away
- SCN · Saarbrücken Airport27 mi away
- HHN · Frankfurt-Hahn Airport38 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 RMS from OSN?
The flight distance from Ramstein (RMS) to Osan (OSN) is 5,408 miles (8,703 km, 4,699 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RMS to OSN?
A nonstop flight takes about 11h 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 Ramstein and Osan?
Osan is 7 hours ahead of Ramstein.
What is the cheapest way to fly from RMS to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RMS–OSN that never appear on search engines, with no booking fees.