Need help booking?
Unpublished phone-only deals available
OSN to SLD: distance & flight time
Osan (Osan Air Base) → Sliac (Sliač Airport)
5,051 mi
8,129 km · 4,389 nm
10h 22m
estimated nonstop flight time
-7h
time difference · heading northwest
See live OSN→SLD fares Phone-only fares on this route — call free
Flight time details
5,051 miles nonstop takes roughly 10h 22m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- SLD — Sliač Airport · Sliac, Slovakia
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 SLD
- ILZ · Žilina Airport47 mi away
- TAT · Poprad-Tatry Airport59 mi away
- PZY · Piešťany Airport60 mi away
- UHE · Kunovice Airport82 mi away
Frequently asked questions
How far is OSN from SLD?
The flight distance from Osan (OSN) to Sliac (SLD) is 5,051 miles (8,129 km, 4,389 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to SLD?
A nonstop flight takes about 10h 22m 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 Sliac?
Sliac is 7 hours behind Osan.
What is the cheapest way to fly from OSN to SLD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–SLD that never appear on search engines, with no booking fees.