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LEN to OSN: distance & flight time
Leon (Leon Airport) → Osan (Osan Air Base)
6,179 mi
9,944 km · 5,369 nm
12h 35m
estimated nonstop flight time
+7h
time difference · heading northeast
See live LEN→OSN fares Phone-only fares on this route — call free
Flight time details
6,179 miles nonstop takes roughly 12h 35m 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
- LEN — Leon Airport · Leon, Spain
- 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 LEN
- OVD · Asturias Airport70 mi away
- VLL · Valladolid Airport74 mi away
- BGC · Bragança Airport74 mi away
- RGS · Burgos Airport105 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 LEN from OSN?
The flight distance from Leon (LEN) to Osan (OSN) is 6,179 miles (9,944 km, 5,369 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LEN to OSN?
A nonstop flight takes about 12h 35m 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 Leon and Osan?
Osan is 7 hours ahead of Leon.
What is the cheapest way to fly from LEN to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LEN–OSN that never appear on search engines, with no booking fees.