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SAN to USN: distance & flight time
San Diego (San Diego International Airport) → Ulsan (Ulsan Airport)
6,050 mi
9,737 km · 5,258 nm
12h 20m
estimated nonstop flight time
+16h
time difference · heading northwest
See live SAN→USN fares Phone-only fares on this route — call free
Flight time details
6,050 miles nonstop takes roughly 12h 20m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- SAN — San Diego International Airport · San Diego, United States
- 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 SAN
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 SAN from USN?
The flight distance from San Diego (SAN) to Ulsan (USN) is 6,050 miles (9,737 km, 5,258 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SAN to USN?
A nonstop flight takes about 12h 20m 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 San Diego and Ulsan?
Ulsan is 16 hours ahead of San Diego.
What is the cheapest way to fly from SAN to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SAN–USN that never appear on search engines, with no booking fees.