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YWM to OSN: distance & flight time
Williams Harbour (Williams Harbour Airport) → Osan (Osan Air Base)
6,240 mi
10,042 km · 5,422 nm
12h 42m
estimated nonstop flight time
+11.5h
time difference · heading north
See live YWM→OSN fares Phone-only fares on this route — call free
Flight time details
6,240 miles nonstop takes roughly 12h 42m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.5-hour time gain when reading arrival times on your ticket.
The two airports
- YWM — Williams Harbour Airport · Williams Harbour, Canada
- 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 YWM
- YFX · St. Lewis (Fox Harbour) Airport14 mi away
- YMH · Mary's Harbour Airport18 mi away
- YHA · Port Hope Simpson Airport21 mi away
- YBI · Black Tickle Airport62 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 YWM from OSN?
The flight distance from Williams Harbour (YWM) to Osan (OSN) is 6,240 miles (10,042 km, 5,422 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YWM to OSN?
A nonstop flight takes about 12h 42m 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 Williams Harbour and Osan?
Osan is 11.5 hours ahead of Williams Harbour.
What is the cheapest way to fly from YWM to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YWM–OSN that never appear on search engines, with no booking fees.