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YQS to USN: distance & flight time
St Thomas (St Thomas Municipal Airport) → Ulsan (Ulsan Airport)
6,692 mi
10,769 km · 5,815 nm
13h 35m
estimated nonstop flight time
—
time difference · heading northwest
See live YQS→USN fares Phone-only fares on this route — call free
Flight time details
6,692 miles nonstop takes roughly 13h 35m gate to gate, flying northwest. 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
- USN — Ulsan Airport · Ulsan, 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 USN
- KPO · Pohang Airport (G-815/K-3)28 mi away
- PUS · Gimhae International Airport37 mi away
- TAE · Daegu Airport44 mi away
- CHF · Jinhae Airbase/Airport (G-813/K-10)48 mi away
Frequently asked questions
How far is YQS from USN?
The flight distance from St Thomas (YQS) to Ulsan (USN) is 6,692 miles (10,769 km, 5,815 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YQS to USN?
A nonstop flight takes about 13h 35m 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 USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YQS–USN that never appear on search engines, with no booking fees.