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TTD to OSN: distance & flight time
Troutdale (Portland Troutdale Airport) → Osan (Osan Air Base)
5,282 mi
8,501 km · 4,590 nm
10h 49m
estimated nonstop flight time
+16h
time difference · heading northwest
See live TTD→OSN fares Phone-only fares on this route — call free
Flight time details
5,282 miles nonstop takes roughly 10h 49m 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
- TTD — Portland Troutdale Airport · Troutdale, 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 TTD
- PDX · Portland International Airport10 mi away
- HIO · Portland Hillsboro Airport27 mi away
- KLS · Southwest Washington Regional Airport46 mi away
- SLE · Salem Municipal Airport/McNary Field53 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 TTD from OSN?
The flight distance from Troutdale (TTD) to Osan (OSN) is 5,282 miles (8,501 km, 4,590 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TTD to OSN?
A nonstop flight takes about 10h 49m 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 Troutdale and Osan?
Osan is 16 hours ahead of Troutdale.
What is the cheapest way to fly from TTD to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TTD–OSN that never appear on search engines, with no booking fees.