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USN to ASM: distance & flight time
Ulsan (Ulsan Airport) → Asmara (Asmara International Airport)
5,633 mi
9,065 km · 4,895 nm
11h 31m
estimated nonstop flight time
-6h
time difference · heading west
See live USN→ASM fares Phone-only fares on this route — call free
Flight time details
5,633 miles nonstop takes roughly 11h 31m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- ASM — Asmara International Airport · Asmara, Eritrea
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 ASM
- MSW · Massawa International Airport40 mi away
- AXU · Axum Airport80 mi away
- MQX · Mekele Airport133 mi away
Frequently asked questions
How far is USN from ASM?
The flight distance from Ulsan (USN) to Asmara (ASM) is 5,633 miles (9,065 km, 4,895 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to ASM?
A nonstop flight takes about 11h 31m 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 Ulsan and Asmara?
Asmara is 6 hours behind Ulsan.
What is the cheapest way to fly from USN to ASM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–ASM that never appear on search engines, with no booking fees.