Direct (non-stop) flights from Ontario (ONT) to San Francisco (SFO)
Find comprehensive flight information, schedules, and booking details for direct flights from Ontario (ONT) to San Francisco (SFO). This popular route is operated by 2 airlines, offering multiple daily departures.• Flight Duration: 1h 24m - 1h 47m (average flight time)• Distance: 364 miles (586 km) (air miles between airports)• Daily Flights: 3-5 flights (scheduled departures per day)
Ontario (ONT)
San Francisco (SFO)
FLIGHT TIME
1h 24m - 1h 47m
FLIGHT DISTANCE
364 miles (586 km)
1h 24m - 1h 30m
06:00
21:59
364 miles (586 km)
March
2 (Show)
27
Flight Schedule
December 2025
Airlines with direct flights from Ontario (ONT) to San Francisco (SFO)
Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 1h 24m - 1h 47m.
Pricing patterns: March typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 6:00, 13:00, 20:00, offering more flight options and potentially better connections.
Ontario (ONT) - San Francisco (SFO) flight price statistics
$121
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$129
Jan$48
Feb$40
Mar$78
Apr$199
May$138
Jun$138
Jul$96
Aug$96
Sep$138
Oct$138
Nov$208
DecRelated Information
Airports: ONT • SFO Airport
Airlines operating this route: United Airlines (UA), Frontier Airlines
Frequently Asked Questions
How many flights operate from ONT to SFO?
There are 4 direct flights operating from ONT to SFO. Approximately 3-5 flights daily.
Which airlines operate flights from ONT to SFO?
2 airlines operate on this route: United Airlines, Frontier Airlines.
How long is the flight from ONT to SFO?
The flight duration from ONT to SFO is approximately 1h 24m - 1h 47m.
What is the distance from ONT to SFO?
The distance from ONT to SFO is 364 miles (586 km).
What is the flight time range for this route?
Flight times on this route range from 1h 24m - 1h 30m.
What are the earliest and latest flight departure times?
The earliest flight departs at 06:00 and the latest flight departs at 21:59.
What is the cheapest month to fly from ONT to SFO?
March is typically the cheapest month to fly on this route.
How many flights operate per week on this route?
Approximately 27 flights operate per week from ONT to SFO.
What types of aircraft operate on this route?
This route is served by Boeing 737MAX 8 Passenger, Airbus A320, Airbus A320neo.
What is the average flight price from ONT to SFO?
The average flight price for a round-trip ticket from ONT to SFO is approximately $121 USD. Prices can vary based on booking time, season, and airline.
When is the best time to book flights from ONT to SFO for the lowest prices?
March is typically the cheapest month to fly from ONT to SFO. Booking in advance and avoiding peak travel seasons can help you find better deals.
How many airlines offer flights from ONT to SFO?
2 airlines offer direct flights from ONT to SFO, providing travelers with multiple options for scheduling and pricing.
How far is SFO from ONT?
The distance from ONT to SFO is 364 miles (586 km). This is a long-haul flight route.
How long does it take to fly from ONT to SFO?
The flight time from ONT to SFO is approximately 1h 24m - 1h 47m. Actual flight duration may vary based on weather conditions, aircraft type, and routing.