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STL to HHQ: distance & flight time
St. Louis (St Louis Lambert International Airport) → Prachuap Khiri Khan (Hua Hin Airport)
8,824 mi
14,202 km · 7,668 nm
17h 46m
estimated nonstop flight time
+12h
time difference · heading north
See live STL→HHQ fares Phone-only fares on this route — call free
Flight time details
8,824 miles nonstop takes roughly 17h 46m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, 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 STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 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 STL from HHQ?
The flight distance from St. Louis (STL) to Prachuap Khiri Khan (HHQ) is 8,824 miles (14,202 km, 7,668 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to HHQ?
A nonstop flight takes about 17h 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 St. Louis and Prachuap Khiri Khan?
Prachuap Khiri Khan is 12 hours ahead of St. Louis.
What is the cheapest way to fly from STL to HHQ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–HHQ that never appear on search engines, with no booking fees.