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YQS to OSN: distance & flight time
St Thomas (St Thomas Municipal Airport) → Osan (Osan Air Base)
6,642 mi
10,689 km · 5,772 nm
13h 29m
estimated nonstop flight time
—
time difference · heading north
See live YQS→OSN fares Phone-only fares on this route — call free
Flight time details
6,642 miles nonstop takes roughly 13h 29m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- YQS — St Thomas Municipal Airport · St Thomas, 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 YQS
- YXU · London Airport18 mi away
- YCE · Centralia / James T. Field Memorial Aerodrome41 mi away
- YYZ · Lester B. Pearson International Airport97 mi away
- YKF · Waterloo Airport60 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 YQS from OSN?
The flight distance from St Thomas (YQS) to Osan (OSN) is 6,642 miles (10,689 km, 5,772 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YQS to OSN?
A nonstop flight takes about 13h 29m 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 cheapest way to fly from YQS to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YQS–OSN that never appear on search engines, with no booking fees.