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UBP to ONT: distance & flight time
Ubon Ratchathani (Ubon Ratchathani Airport) → Ontario (Ontario International Airport)
8,032 mi
12,926 km · 6,980 nm
16h 13m
estimated nonstop flight time
-14h
time difference · heading northeast
See live UBP→ONT fares Phone-only fares on this route — call free
Flight time details
8,032 miles nonstop takes roughly 16h 13m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- UBP — Ubon Ratchathani Airport · Ubon Ratchathani, Thailand
- 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 UBP
- PKZ · Pakse International Airport61 mi away
- ZVK · Savannakhet Airport90 mi away
- ROI · Roi Et Airport94 mi away
- PXR · Surin Airport95 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 UBP from ONT?
The flight distance from Ubon Ratchathani (UBP) to Ontario (ONT) is 8,032 miles (12,926 km, 6,980 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UBP to ONT?
A nonstop flight takes about 16h 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 Ubon Ratchathani and Ontario?
Ontario is 14 hours behind Ubon Ratchathani.
What is the cheapest way to fly from UBP to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UBP–ONT that never appear on search engines, with no booking fees.