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PSC to OSN: distance & flight time
Pasco (Tri Cities Airport) → Osan (Osan Air Base)
5,370 mi
8,642 km · 4,666 nm
11h
estimated nonstop flight time
+16h
time difference · heading northwest
See live PSC→OSN fares Phone-only fares on this route — call free
Flight time details
5,370 miles nonstop takes roughly 11h gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- PSC — Tri Cities Airport · Pasco, United States
- 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 PSC
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 PSC from OSN?
The flight distance from Pasco (PSC) to Osan (OSN) is 5,370 miles (8,642 km, 4,666 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSC to OSN?
A nonstop flight takes about 11h 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 Pasco and Osan?
Osan is 16 hours ahead of Pasco.
What is the cheapest way to fly from PSC to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSC–OSN that never appear on search engines, with no booking fees.