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IIL to USN: distance & flight time
Ilam (Ilam Airport) → Ulsan (Ulsan Airport)
4,567 mi
7,350 km · 3,969 nm
9h 25m
estimated nonstop flight time
+5.5h
time difference · heading northeast
See live IIL→USN fares Phone-only fares on this route — call free
Flight time details
4,567 miles nonstop takes roughly 9h 25m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5.5-hour time gain when reading arrival times on your ticket.
The two airports
- IIL — Ilam Airport · Ilam, Iran
- 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 IIL
- KSH · Shahid Ashrafi Esfahani Airport68 mi away
- KHD · Khoram Abad Airport109 mi away
- SDG · Sanandaj Airport120 mi away
- XQC · Joint Base Balad120 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 IIL from USN?
The flight distance from Ilam (IIL) to Ulsan (USN) is 4,567 miles (7,350 km, 3,969 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IIL to USN?
A nonstop flight takes about 9h 25m 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 Ilam and Ulsan?
Ulsan is 5.5 hours ahead of Ilam.
What is the cheapest way to fly from IIL to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IIL–USN that never appear on search engines, with no booking fees.