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MFI to USN: distance & flight time
Marshfield (Marshfield Municipal Airport) → Ulsan (Ulsan Airport)
6,366 mi
10,245 km · 5,532 nm
12h 57m
estimated nonstop flight time
+14h
time difference · heading northwest
See live MFI→USN fares Phone-only fares on this route — call free
Flight time details
6,366 miles nonstop takes roughly 12h 57m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- MFI — Marshfield Municipal Airport · Marshfield, 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 MFI
- ISW · Alexander Field South Wood County Airport26 mi away
- CWA · Central Wisconsin Airport27 mi away
- STE · Stevens Point Municipal Airport33 mi away
- AUW · Wausau Downtown Airport34 mi away
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 MFI from USN?
The flight distance from Marshfield (MFI) to Ulsan (USN) is 6,366 miles (10,245 km, 5,532 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MFI to USN?
A nonstop flight takes about 12h 57m 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 Marshfield and Ulsan?
Ulsan is 14 hours ahead of Marshfield.
What is the cheapest way to fly from MFI to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MFI–USN that never appear on search engines, with no booking fees.