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RST to ONT: distance & flight time
Rochester (Rochester International Airport) → Ontario (Ontario International Airport)
1,502 mi
2,417 km · 1,305 nm
3h 25m
estimated nonstop flight time
-2h
time difference · heading west
See live RST→ONT fares Phone-only fares on this route — call free
Flight time details
1,502 miles nonstop takes roughly 3h 25m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- RST — Rochester International Airport · Rochester, United States
- 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 RST
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 RST from ONT?
The flight distance from Rochester (RST) to Ontario (ONT) is 1,502 miles (2,417 km, 1,305 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RST to ONT?
A nonstop flight takes about 3h 25m 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 Rochester and Ontario?
Ontario is 2 hours behind Rochester.
What is the cheapest way to fly from RST to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RST–ONT that never appear on search engines, with no booking fees.