Nonstop flights from Ontario to San Francisco

2 airlines fly this route, with up to 4 flights a day.

ONTOntario International

364 mi · 28 flights a week

SFOSan Francisco International

ONTSFO

When they leave

Ontario time

6:00a6:39pFirst departure 6:00 AM, last 6:39 PM

Two in the morning, 6:00 AM to 8:58 AM, then two in the afternoon, 1:50 PM to 4:20 PM, then one evening flight at 6:39 PM.

Every flight

Earliest first

6:00 AM→7:25 AMUnited AirlinesBoeing 737 MAX 9Daily
8:58 AM→10:30 AMFrontier AirlinesAirbus A320neoDaily
1:50 PM→3:15 PMUnited AirlinesBoeing 737Daily
4:20 PM→5:50 PMUnited AirlinesEmbraer 175Tue, Sat
6:39 PM→8:07 PMUnited AirlinesCRJ 700Mon, Wed, Thu, Fri, Sun

Schedules last checked Sep 19, 2026. Times are local.

Flying from Ontario to San Francisco

United Airlines flies most often, 3 times a day on the Boeing 737, Boeing 737 MAX 9, CRJ 700 and Embraer 175. Frontier Airlines flies daily on the Airbus A320neo.

There are 4 flights every day of the week. The first arrival in San Francisco is at 7:25 AM and the last at 8:07 PM. The flight covers 364 miles.

Flying back, San Francisco to Ontario has 28 nonstop flights a week.

Return flights

San Francisco to OntarioView

Find the cheapest day to fly from Ontario to San Francisco.

Schedules as of Oct 9, 2026.