Travelling from San Francisco International Airport (SFO) to Ontario International Airport (ONT): what you need to know
The average time for a direct flight from San Francisco International Airport to Ontario International Airport is 1 hour 25 minutes.
Ontario's timezone is UTC-7, which is the same as San Francisco.
Flights from SFO to ONT start from 05:15 — the earliest with Frontier Airlines. The last service of the day is at 23:19 with United Airlines. Overall, you can take your pick of 88 weekly San Francisco International Airport to Ontario International Airport flights.
Leave enough time to make your SFO to ONT flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.
You can expect bigger queues in popular months like August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a wise move.
Frontier Airlines has direct flights from San Francisco International Airport to Ontario International Airport. Book with this popular airline, then get ready to discover the sights in Ontario — and maybe even more of United States if you have time.
The airline that tops the list for bookings on this route is Frontier Airlines.
With 78.66% of its services arriving as scheduled, United Airlines is the most punctual carrier offering SFO to ONT flights.
If you want to add a stop to your trip, simply deselect 'Direct flights only' when searching for your ticket from San Francisco International Airport to Ontario International Airport. These are the most popular stopovers between SFO and ONT:
Harry Reid Airport (formerly McCarran Airport)
Sacramento International Airport
Phoenix Sky Harbour International Airport
How to find the cheapest flights from San Francisco International Airport (SFO) to Ontario International Airport (ONT)
Right now, R 529 is the cheapest price we've found for a one-way San Francisco International Airport to Ontario International Airport flight. The best price for a return ticket is R 954. Bear in mind that fares could change due to availability when booking.
Book five months before travelling. After crunching the numbers on our calendar, this is how far you should book ahead to find cheap tickets from SFO to ONT.
Organise your trip for April. That's the cheapest month for flights from San Francisco International Airport to Ontario International Airport. If you're flexible on when you fly, try out the 'Whole month' tool to find the lowest airfare across every month.
You don't need to check back in every day to see if fares have gone down when you set up a Price Alert. We'll notify you the moment there's a better deal on cheap flights from SFO to ONT.
Choose your ideal arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from San Francisco International Airport to Ontario International Airport.
Handy information about San Francisco International Airport (SFO)
When it comes to the on-time performance of San Francisco International Airport, 77.36% of flights complete their journey on time.
San Francisco International Airport is about 21 kilometres from central San Francisco. If you're driving, ride-sharing or catching a cab from the centre, it'll take you 20 minutes or so to arrive, depending on the traffic.
Catching public transport? Expect a journey time of around 45 minutes.
Looking for a handy hotel near SFO? If you're catching an early flight from San Francisco International Airport to Ontario International Airport, these stays will have you sleeping moments from your departure gate:
Arriving at Ontario International Airport (ONT)
The last thing you want is a long journey to your hotel if you're getting in late on a San Francisco International Airport to Ontario International Airport flight. Book one of these accommodation options near ONT instead:
Go wherever you want, whenever you want with an Ontario International Airport rental car. Book your wheels from Dollar, Fox - Rent A Car or Thrifty and see more of Ontario and beyond.
Reserving your ride from Ontario International Airport about three weeks ahead can help you get the lowest rate.
Getting from Ontario International Airport (ONT) to central Ontario
ONT is located at 2900 E. Airport Drive.
Ontario International Airport to central Ontario has a drive time of around 10 minutes. It's approximately 6 kilometres away.
It takes roughly 1 hour 30 minutes to get there by public transport.
When to fly to Ontario International Airport (ONT)
The quietest month for a flight from San Francisco International Airport to Ontario International Airport is May, while August is the busiest. Pick the best time to go to Ontario based on whether you prefer a faster pace or a more relaxed vibe.
Before locking in your flight from San Francisco International Airport to Ontario International Airport, think about the type of weather you enjoy. August is the warmest month in Ontario, with temperatures ranging from 15ºC (59ºF) to 35ºC (95ºF).
If you like cooler conditions, search for a cheap ticket from SFO to ONT in January. Temperatures average between 4ºC (39ºF) and 23ºC (73ºF) then.
Explore more of United States
You've visited Ontario, now it's time to discover other parts of United States. Journey about 56 kilometres west to Los Angeles to tick off its top attractions. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, your itinerary will be busy.
Around 153 kilometres south of Ontario, San Diego is another favourite stop in United States. Start your sightseeing at San Diego Zoo, USS Midway Museum and SeaWorld San Diego.
