$29 Cheap Flights from Ontario (ONT) to San Francisco (SFO)

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Cheap Flights from Ontario to San Francisco (ONT-SFO)

Prices were available within the past 7 days and start at $29 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Flights from Ontario (ONT) to San Francisco (SFO)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, United
Roundtrip price
$52
Distance
363 mi
Average flight time
1 hour 35 mins

Ontario to San Francisco Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Ontario to San Francisco offer the perfect respite. Not only does exploring San Francisco provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Ontario to San Francisco may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from ONT to SFO today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of San Francisco are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to San Francisco more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to San Francisco is $29 now!

Frequently asked questions

How much is a one-way flight from Ontario Airport to San Francisco Intl. Airport (SFO)?
Prepare to grab a bargain, because Ontario flights to San Francisco start from just $29. This is based on the lowest price found on Expedia for this journey with a departure date during the next three months. This airfare is for an Frontier Airlines flight, taking off from Los Angeles - Ontario Intl. Airport (ONT) on May 21 2024 and touching down at San Francisco Airport. The price of this flight was updated on March 17 2024 and has not changed since.
How long does it take to fly from Los Angeles - Ontario Intl. Airport (ONT) to San Francisco Airport?
United Airlines operates a direct flight jetting off from Ontario Airport at 8:05AM and reaching San Francisco Airport at 9:26AM — a travel time of 1 hour and 21 minutes. Book a seat, bring a magazine to keep you entertained and the time will whiz by.
Is it cheaper to buy a plane ticket from ONT to SFO last minute?
When it comes to booking your flights, it’s better to be prepared. While it may be possible to pick up a last-minute deal on an Ontario Airport to SFO flight, prices usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days ahead. For international journeys it’s three to four months.
What is the cheapest airline flying from Ontario Airport to San Francisco Airport in the next 90 days?
With plane tickets starting at $29 for a flight from Ontario to San Francisco, Frontier Airlines is the cheapest airline found on Expedia. This price is based on airfares found on Expedia with a departure date within the next 90 days and was updated on March 17 2024 and has not changed since. The flight leaves Los Angeles - Ontario Intl. Airport (ONT) on May 21 2024 and lands at SFO.
What's the cheapest price for a flight from ONT to San Francisco Airport next month?
The lowest price for a one-way flight from Ontario to San Francisco over the next month is $29. If you plan to travel soon, now’s the time to land this fare. This price was found after searching all available flights on Expedia departing within the next 30 days. This fare is for a one-way Frontier Airlines flight departing Los Angeles - Ontario Intl. Airport (ONT) on April 13 2024 and landing at San Francisco Airport. Pricing info was last updated on March 17 2024 and has not changed since.
What airline has the least delays from ONT to San Francisco Airport?
With an on-time performance score of 63%, United Airlines is the airline that’s most likely to fly you from Ontario Airport to San Francisco Intl. Airport (SFO) without any interruptions. Flight delays aren’t just annoying — they can also result in a missed connection that upends your entire journey. Keep updated about any delays by checking your flight status through the Expedia App before you head for the airport. If you’re already at your gate and the delay is significant, head to the customer service desk to see what your options are.
Can I find cheap nonstop flights from Ontario Airport to San Francisco Airport in the next three months?
Your next awesome adventure doesn’t have to blow a hole in your budget. We’ve uncovered a roundtrip nonstop flight from Ontario to San Francisco in the next 90 days for $53. This price was found after searching all available flights on Expedia with a departure date in the next three months and was updated on March 17 2024. The flight via Frontier Airlines takes off from Ontario Airport on April 13 2024 and arrives at San Francisco Airport. It has a return date of April 13 2024.To locate nonstop cheap flights heading out from ONT to San Francisco Airport, use our filters after you’ve hit the search button. Just click “Nonstop” under “Filter by” on the left-hand side of the page to browse your options. Your results will be ordered from the lowest price, so you’ll see the cheapest nonstop airfares first. You can also compare ticket prices for nearby days by clicking “Flexible dates” on the same page.
What airports do you fly into for San Francisco from Los Angeles?
San Francisco Intl. Airport (SFO), Oakland Intl. Airport (OAK) and Norman Y. Mineta San Jose Intl. Airport (SJC) are your choices when traveling from Los Angeles to San Francisco. Around 12 mi south of central San Francisco, San Francisco Intl. Airport (SFO) is the city’s main hub. Keep in mind factors like flight arrival and departure times and the distance to your hotel before picking your airport. Pier 39 and Golden Gate Bridge are a couple of fantastic attractions to check out when you reach your destination.
What are the most popular departure times for flights from Los Angeles - Ontario Intl. Airport (ONT) to San Francisco Airport?
The most popular departure times for journeys from Los Angeles - Ontario Intl. Airport (ONT) to SFO are between 8:00 PM - 9:00 PM on United Airlines. One handy tip is to head out in the morning. The earlier you do, the better your chances of a delay-free flight with less air traffic in the skies.
Can I change the date of my flight from Ontario Airport to San Francisco Intl. Airport (SFO)?
Easily make changes to your ONT to San Francisco Intl. Airport (SFO) flight through the Expedia Trips portal. But before you make any amendments, check out the rules and restrictions in your itinerary to find out what the airline will let you do and what fees apply for changes. Some airlines charge a change fee per person, on top of any difference in fares. However, if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also check out our Customer Service portal for further details and to connect with our Virtual Agent.
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