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ONT to SFO: distance & flight time
Ontario (Ontario International Airport) → San Francisco (San Francisco International Airport)
363 mi
585 km · 316 nm
1h 25m
estimated nonstop flight time
Same time
time difference · heading northwest
See live ONT→SFO fares Phone-only fares on this route — call free
Flight time details
363 miles nonstop takes roughly 1h 25m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- SFO — San Francisco International Airport · San Francisco, 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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Near SFO
- SQL · San Carlos Airport10 mi away
- HAF · Half Moon Bay Airport10 mi away
- OAK · Metropolitan Oakland International Airport11 mi away
- NGZ · Alameda Naval Air Station12 mi away
Frequently asked questions
How far is ONT from SFO?
The flight distance from Ontario (ONT) to San Francisco (SFO) is 363 miles (585 km, 316 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to SFO?
A nonstop flight takes about 1h 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 cheapest way to fly from ONT to SFO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–SFO that never appear on search engines, with no booking fees.