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USN to KSL: distance & flight time
Ulsan (Ulsan Airport) → Kassala (Kassala Airport)
5,770 mi
9,286 km · 5,014 nm
11h 47m
estimated nonstop flight time
-7h
time difference · heading west
See live USN→KSL fares Phone-only fares on this route — call free
Flight time details
5,770 miles nonstop takes roughly 11h 47m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- KSL — Kassala Airport · Kassala, Sudan
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 KSL
- HUE · Humera Airport80 mi away
Frequently asked questions
How far is USN from KSL?
The flight distance from Ulsan (USN) to Kassala (KSL) is 5,770 miles (9,286 km, 5,014 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to KSL?
A nonstop flight takes about 11h 47m 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 KSL?
Nonstop service on USN–KSL 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 47m nonstop estimate.
What is the time difference between Ulsan and Kassala?
Kassala is 7 hours behind Ulsan.
What is the cheapest way to fly from USN to KSL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–KSL that never appear on search engines, with no booking fees.
Why are some USN to KSL fares phone-only?
Consolidator contracts let us sell certain USN–KSL 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.