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HHQ to USN: distance & flight time
Prachuap Khiri Khan (Hua Hin Airport) → Ulsan (Ulsan Airport)
2,422 mi
3,898 km · 2,105 nm
5h 13m
estimated nonstop flight time
+2h
time difference · heading northeast
See live HHQ→USN fares Phone-only fares on this route — call free
Flight time details
2,422 miles nonstop takes roughly 5h 13m 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
- HHQ — Hua Hin Airport · Prachuap Khiri Khan, 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 HHQ
- UTP · U-Tapao International Airport71 mi away
- BKK · Suvarnabhumi Airport90 mi away
- MGZ · Myeik Airport91 mi away
- DMK · Don Mueang International Airport99 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 HHQ from USN?
The flight distance from Prachuap Khiri Khan (HHQ) to Ulsan (USN) is 2,422 miles (3,898 km, 2,105 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HHQ to USN?
A nonstop flight takes about 5h 13m 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 Prachuap Khiri Khan and Ulsan?
Ulsan is 2 hours ahead of Prachuap Khiri Khan.
What is the cheapest way to fly from HHQ to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HHQ–USN that never appear on search engines, with no booking fees.