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ONT to TST: distance & flight time
Ontario (Ontario International Airport) → Trang (Trang Airport)
8,672 mi
13,957 km · 7,536 nm
17h 28m
estimated nonstop flight time
+14h
time difference · heading northwest
See live ONT→TST fares Phone-only fares on this route — call free
Flight time details
8,672 miles nonstop takes roughly 17h 28m 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
- TST — Trang Airport · Trang, 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 TST
- KBV · Krabi Airport59 mi away
- HDY · Hat Yai International Airport66 mi away
- SGZ · Songkhla Airport71 mi away
- NST · Nakhon Si Thammarat Airport75 mi away
Frequently asked questions
How far is ONT from TST?
The flight distance from Ontario (ONT) to Trang (TST) is 8,672 miles (13,957 km, 7,536 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to TST?
A nonstop flight takes about 17h 28m 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 Trang?
Trang is 14 hours ahead of Ontario.
What is the cheapest way to fly from ONT to TST?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–TST that never appear on search engines, with no booking fees.