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USN to WYS: distance & flight time
Ulsan (Ulsan Airport) → West Yellowstone (Yellowstone Airport)
5,725 mi
9,213 km · 4,975 nm
11h 42m
estimated nonstop flight time
-16h
time difference · heading northeast
See live USN→WYS fares Phone-only fares on this route — call free
Flight time details
5,725 miles nonstop takes roughly 11h 42m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- WYS — Yellowstone Airport · West Yellowstone, 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 WYS
- BZN · Gallatin Field75 mi away
- JAC · Jackson Hole Airport77 mi away
- LVM · Mission Field77 mi away
- IDA · Idaho Falls Regional Airport94 mi away
Frequently asked questions
How far is USN from WYS?
The flight distance from Ulsan (USN) to West Yellowstone (WYS) is 5,725 miles (9,213 km, 4,975 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to WYS?
A nonstop flight takes about 11h 42m 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 WYS?
Nonstop service on USN–WYS 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 11h 42m nonstop estimate.
What is the time difference between Ulsan and West Yellowstone?
West Yellowstone is 16 hours behind Ulsan.
What is the cheapest way to fly from USN to WYS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–WYS that never appear on search engines, with no booking fees.
Why are some USN to WYS fares phone-only?
Consolidator contracts let us sell certain USN–WYS 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.