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USN to NST: distance & flight time
Ulsan (Ulsan Airport) → Nakhon Si Thammarat (Nakhon Si Thammarat Airport)
2,632 mi
4,236 km · 2,287 nm
5h 38m
estimated nonstop flight time
-2h
time difference · heading southwest
See live USN→NST fares Phone-only fares on this route — call free
Flight time details
2,632 miles nonstop takes roughly 5h 38m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- NST — Nakhon Si Thammarat Airport · Nakhon Si Thammarat, Thailand
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 NST
- URT · Surat Thani Airport69 mi away
- USM · Samui Airport70 mi away
- KBV · Krabi Airport72 mi away
- TST · Trang Airport75 mi away
Frequently asked questions
How far is USN from NST?
The flight distance from Ulsan (USN) to Nakhon Si Thammarat (NST) is 2,632 miles (4,236 km, 2,287 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to NST?
A nonstop flight takes about 5h 38m 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 Nakhon Si Thammarat?
Nakhon Si Thammarat is 2 hours behind Ulsan.
What is the cheapest way to fly from USN to NST?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–NST that never appear on search engines, with no booking fees.