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USN to KLM: distance & flight time
Ulsan (Ulsan Airport) → Kalaleh (Kalaleh Airport)
3,995 mi
6,429 km · 3,472 nm
8h 18m
estimated nonstop flight time
-5.5h
time difference · heading northwest
See live USN→KLM fares Phone-only fares on this route — call free
Flight time details
3,995 miles nonstop takes roughly 8h 18m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5.5-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- KLM — Kalaleh Airport · Kalaleh, Iran
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 KLM
- GBT · Gorgan Airport66 mi away
- RUD · Shahroud Airport69 mi away
- BJB · Bojnord Airport102 mi away
- SRY · Dasht-e Naz Airport135 mi away
Frequently asked questions
How far is USN from KLM?
The flight distance from Ulsan (USN) to Kalaleh (KLM) is 3,995 miles (6,429 km, 3,472 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to KLM?
A nonstop flight takes about 8h 18m 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 KLM?
Nonstop service on USN–KLM 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 8h 18m nonstop estimate.
What is the time difference between Ulsan and Kalaleh?
Kalaleh is 5.5 hours behind Ulsan.
What is the cheapest way to fly from USN to KLM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–KLM that never appear on search engines, with no booking fees.
Why are some USN to KLM fares phone-only?
Consolidator contracts let us sell certain USN–KLM 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.