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USN to HMY: distance & flight time
Ulsan (Ulsan Airport) → Seosan (Seosan Air Base)
177 mi
285 km · 154 nm
56m
estimated nonstop flight time
—
time difference · heading northwest
See live USN→HMY fares Phone-only fares on this route — call free
Flight time details
177 miles nonstop takes roughly 56m 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
- USN — Ulsan Airport · Ulsan, South Korea
- HMY — Seosan Air Base · Seosan, 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 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
Near HMY
- ICN · Incheon International Airport53 mi away
- OSN · Osan Air Base40 mi away
- SWU · Suwon Airport47 mi away
- KUV · Kunsan Air Base56 mi away
Frequently asked questions
How far is USN from HMY?
The flight distance from Ulsan (USN) to Seosan (HMY) is 177 miles (285 km, 154 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to HMY?
A nonstop flight takes about 56m 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 USN to HMY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–HMY that never appear on search engines, with no booking fees.