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RBE to ONT: distance & flight time
Ratanakiri (Ratanakiri Airport) → Ontario (Ontario International Airport)
8,023 mi
12,912 km · 6,972 nm
16h 12m
estimated nonstop flight time
-14h
time difference · heading northeast
See live RBE→ONT fares Phone-only fares on this route — call free
Flight time details
8,023 miles nonstop takes roughly 16h 12m 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
- RBE — Ratanakiri Airport · Ratanakiri, Cambodia
- 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 RBE
- TNX · Stung Treng Airport67 mi away
- PXU · Pleiku Airport72 mi away
- AOU · Attopeu Airport76 mi away
- BMV · Buon Ma Thuot Airport106 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 RBE from ONT?
The flight distance from Ratanakiri (RBE) to Ontario (ONT) is 8,023 miles (12,912 km, 6,972 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RBE to ONT?
A nonstop flight takes about 16h 12m 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 Ratanakiri and Ontario?
Ontario is 14 hours behind Ratanakiri.
What is the cheapest way to fly from RBE to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RBE–ONT that never appear on search engines, with no booking fees.