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USN to SSN: distance & flight time
Ulsan (Ulsan Airport) → Seoul East (Seoul Air Base (K-16))
178 mi
287 km · 155 nm
56m
estimated nonstop flight time
Same time
time difference · heading northwest
See live USN→SSN fares Phone-only fares on this route — call free
Flight time details
178 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
- SSN — Seoul Air Base (K-16) · Seoul East, 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 SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Frequently asked questions
How far is USN from SSN?
The flight distance from Ulsan (USN) to Seoul East (SSN) is 178 miles (287 km, 155 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to SSN?
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.
Are there nonstop flights from USN to SSN?
Nonstop service on USN–SSN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 56m nonstop estimate.
What is the cheapest way to fly from USN to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–SSN that never appear on search engines, with no booking fees.
Why are some USN to SSN fares phone-only?
Consolidator contracts let us sell certain USN–SSN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.