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NAK to USN: distance & flight time
Nakhon Ratchasima (Nakhon Ratchasima Airport) → Ulsan (Ulsan Airport)
2,197 mi
3,536 km · 1,909 nm
4h 46m
estimated nonstop flight time
+2h
time difference · heading northeast
See live NAK→USN fares Phone-only fares on this route — call free
Flight time details
2,197 miles nonstop takes roughly 4h 46m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- NAK — Nakhon Ratchasima Airport · Nakhon Ratchasima, Thailand
- 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 NAK
- BFV · Buri Ram Airport66 mi away
- PXR · Surin Airport79 mi away
- KKC · Khon Kaen Airport109 mi away
- ROI · Roi Et Airport126 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 NAK from USN?
The flight distance from Nakhon Ratchasima (NAK) to Ulsan (USN) is 2,197 miles (3,536 km, 1,909 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NAK to USN?
A nonstop flight takes about 4h 46m 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 Nakhon Ratchasima and Ulsan?
Ulsan is 2 hours ahead of Nakhon Ratchasima.
What is the cheapest way to fly from NAK to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NAK–USN that never appear on search engines, with no booking fees.