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BOR to USN: distance & flight time
Belfort (Fontaine Airport) → Ulsan (Ulsan Airport)
5,674 mi
9,131 km · 4,930 nm
11h 35m
estimated nonstop flight time
+7h
time difference · heading northeast
See live BOR→USN fares Phone-only fares on this route — call free
Flight time details
5,674 miles nonstop takes roughly 11h 35m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- BOR — Fontaine Airport · Belfort, France
- 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 BOR
- BSL · EuroAirport Basel-Mulhouse-Freiburg Airport25 mi away
- CMR · Colmar-Houssen Airport35 mi away
- ZHI · Grenchen Airport38 mi away
- QNC · Neuchatel Airport49 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 BOR from USN?
The flight distance from Belfort (BOR) to Ulsan (USN) is 5,674 miles (9,131 km, 4,930 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BOR to USN?
A nonstop flight takes about 11h 35m 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 BOR to USN?
Nonstop service on BOR–USN 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 35m nonstop estimate.
What is the time difference between Belfort and Ulsan?
Ulsan is 7 hours ahead of Belfort.
What is the cheapest way to fly from BOR to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BOR–USN that never appear on search engines, with no booking fees.
Why are some BOR to USN fares phone-only?
Consolidator contracts let us sell certain BOR–USN 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.