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USN to TWF: distance & flight time
Ulsan (Ulsan Airport) → Twin Falls (Joslin Field Magic Valley Regional Airport)
5,708 mi
9,185 km · 4,960 nm
11h 39m
estimated nonstop flight time
-15h
time difference · heading northeast
See live USN→TWF fares Phone-only fares on this route — call free
Flight time details
5,708 miles nonstop takes roughly 11h 39m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- TWF — Joslin Field Magic Valley Regional Airport · Twin Falls, United States
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 TWF
- BYI · Burley Municipal Airport37 mi away
- SUN · Friedman Memorial Airport71 mi away
- MUO · Mountain Home Air Force Base80 mi away
- PIH · Pocatello Regional Airport101 mi away
Frequently asked questions
How far is USN from TWF?
The flight distance from Ulsan (USN) to Twin Falls (TWF) is 5,708 miles (9,185 km, 4,960 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to TWF?
A nonstop flight takes about 11h 39m 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 Ulsan and Twin Falls?
Twin Falls is 15 hours behind Ulsan.
What is the cheapest way to fly from USN to TWF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–TWF that never appear on search engines, with no booking fees.