Need help booking?
Unpublished phone-only deals available
ONT to HHQ: distance & flight time
Ontario (Ontario International Airport) → Prachuap Khiri Khan (Hua Hin Airport)
8,376 mi
13,480 km · 7,278 nm
16h 53m
estimated nonstop flight time
+14h
time difference · heading northwest
See live ONT→HHQ fares Phone-only fares on this route — call free
Flight time details
8,376 miles nonstop takes roughly 16h 53m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- HHQ — Hua Hin Airport · Prachuap Khiri Khan, 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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
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
Frequently asked questions
How far is ONT from HHQ?
The flight distance from Ontario (ONT) to Prachuap Khiri Khan (HHQ) is 8,376 miles (13,480 km, 7,278 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to HHQ?
A nonstop flight takes about 16h 53m 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 Ontario and Prachuap Khiri Khan?
Prachuap Khiri Khan is 14 hours ahead of Ontario.
What is the cheapest way to fly from ONT to HHQ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–HHQ that never appear on search engines, with no booking fees.