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OST to USN: distance & flight time
Ostend (Ostend-Bruges International Airport) → Ulsan (Ulsan Airport)
5,620 mi
9,045 km · 4,884 nm
11h 29m
estimated nonstop flight time
+7h
time difference · heading northeast
See live OST→USN fares Phone-only fares on this route — call free
Flight time details
5,620 miles nonstop takes roughly 11h 29m 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
- OST — Ostend-Bruges International Airport · Ostend, Belgium
- 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 OST
- KJK · Wevelgem Airport30 mi away
- HZB · Merville-Calonne Airport41 mi away
- CQF · Calais-Dunkerque Airport43 mi away
- LIL · Lille-Lesquin Airport45 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 OST from USN?
The flight distance from Ostend (OST) to Ulsan (USN) is 5,620 miles (9,045 km, 4,884 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OST to USN?
A nonstop flight takes about 11h 29m 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 Ostend and Ulsan?
Ulsan is 7 hours ahead of Ostend.
What is the cheapest way to fly from OST to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OST–USN that never appear on search engines, with no booking fees.