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TSF to OSN: distance & flight time
Treviso (Treviso-Sant'Angelo Airport) → Osan (Osan Air Base)
5,433 mi
8,744 km · 4,721 nm
11h 7m
estimated nonstop flight time
+7h
time difference · heading northeast
See live TSF→OSN fares Phone-only fares on this route — call free
Flight time details
5,433 miles nonstop takes roughly 11h 7m 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
- TSF — Treviso-Sant'Angelo Airport · Treviso, Italy
- 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 TSF
- VCE · Venice Marco Polo Airport12 mi away
- QPA · Padova Airport24 mi away
- AVB · Aviano Air Base33 mi away
- VIC · Vicenza Airport33 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 TSF from OSN?
The flight distance from Treviso (TSF) to Osan (OSN) is 5,433 miles (8,744 km, 4,721 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TSF to OSN?
A nonstop flight takes about 11h 7m 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 Treviso and Osan?
Osan is 7 hours ahead of Treviso.
What is the cheapest way to fly from TSF to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TSF–OSN that never appear on search engines, with no booking fees.