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POS to ONT: distance & flight time
Port-of-spain (Piarco International Airport) → Ontario (Ontario International Airport)
3,888 mi
6,257 km · 3,379 nm
8h 5m
estimated nonstop flight time
-3h
time difference · heading northwest
See live POS→ONT fares Phone-only fares on this route — call free
Flight time details
3,888 miles nonstop takes roughly 8h 5m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- POS — Piarco International Airport · Port-of-spain, Trinidad and Tobago
- ONT — Ontario International Airport · Ontario, United States
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 POS
- TAB · Tobago-Crown Point Airport51 mi away
- GUI · Guiria Airport66 mi away
- GND · Point Salines International Airport102 mi away
- TUV · Tucupita Airport116 mi away
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
Frequently asked questions
How far is POS from ONT?
The flight distance from Port-of-spain (POS) to Ontario (ONT) is 3,888 miles (6,257 km, 3,379 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from POS to ONT?
A nonstop flight takes about 8h 5m 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 Port-of-spain and Ontario?
Ontario is 3 hours behind Port-of-spain.
What is the cheapest way to fly from POS to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on POS–ONT that never appear on search engines, with no booking fees.