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RDO to ONT: distance & flight time
RADOM (Radom Airport) → Ontario (Ontario International Airport)
6,026 mi
9,698 km · 5,237 nm
12h 17m
estimated nonstop flight time
-9h
time difference · heading northwest
See live RDO→ONT fares Phone-only fares on this route — call free
Flight time details
6,026 miles nonstop takes roughly 12h 17m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- RDO — Radom Airport · RADOM, Poland
- 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 RDO
- WAW · Warsaw Chopin Airport55 mi away
- LUZ · Lublin Airport66 mi away
- WMI · Modlin Airport77 mi away
- LCJ · Łódź Władysław Reymont Airport81 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 RDO from ONT?
The flight distance from RADOM (RDO) to Ontario (ONT) is 6,026 miles (9,698 km, 5,237 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RDO to ONT?
A nonstop flight takes about 12h 17m 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 RADOM and Ontario?
Ontario is 9 hours behind RADOM.
What is the cheapest way to fly from RDO to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RDO–ONT that never appear on search engines, with no booking fees.