Flights from Ontario, CA to San Francisco, CA from $29 - Cheapflights.com (2024)

Cheap flight deals from Ontario to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 25, 2024.

Cheap Frontier flights from Ontario to San Francisco

Explore cheap flight options specifically provided by Frontier for the route between Ontario and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,178,849 searches. Data last updated March 25, 2024.

Take a look at some of the lowest-priced Frontier flights heading from Ontario to San Francisco. Make sure to check back often as deals are often changing.

• One of the most popular airlines traveling from Ontario to San Francisco is Frontier. Flights from Frontier traveling this route typically cost $243.31 RT. This price is typically 20% cheaper than other airlines that offer Ontario to San Francisco flights. When booking this route, the cheapest RT price found was $104. Ontario Airport is the most common Ontario airport to take off from when flying to San Francisco. San Francisco Airport is the most popular arrival airport in San Francisco. When flying from Ontario to San Francisco, Frontier flights are 0% more popular than any other airline flying that same route.

Cheap United Airlines flights from Ontario to San Francisco

Explore cheap flight options specifically provided by United Airlines for the route between Ontario and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,178,849 searches. Data last updated March 25, 2024.

Browse through some of the cheapest United Airlines flights traveling from Ontario to San Francisco. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

• If you’re traveling from Ontario to San Francisco, one of the more common airlines traveling that route is United Airlines. Flights from United Airlines traveling this route typically cost $100.21 RT. This price is typically 159% more expensive than other airlines that offer Ontario to San Francisco flights. When booking this route, the cheapest RT price found was $40. The most popular departure airport in Ontario when flying to San Francisco is Ontario Airport. The most popular airport to fly into when visiting San Francisco is San Francisco Airport. When flying from Ontario to San Francisco, United Airlines flights are -15% more popular than any other airline flying that same route.

Cheap Ontario to San Francisco flights in March & April 2024

Find cheap flight options from Ontario to San Francisco specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,178,849 searches. Prices were last updated on March 25, 2024.

Listed are some of the best fares we've found on flights departing from Ontario to San Francisco in 2024. For more flight deals, be sure to check back very soon.

Ontario to San Francisco 2024 flight deals

Discover exclusive flight deals for travel between Ontario and San Francisco in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,178,849 searches. Data last updated March 25, 2024.

Listed are some of the best fares we've found on flights departing from Ontario to San Francisco in 2024. For more flight deals, be sure to check back very soon.

Non-stop flights to San Francisco from Ontario

Discover non-stop flight options from Ontario to San Francisco. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,178,849 searches. Data last updated March 25, 2024.

For a quicker trip, book one of these direct flights from Ontario to San Francisco. Users can also choose from other Ontario to San Francisco flights by using the search form above.

Ontario to San Francisco flights leaving soon

Find last-minute flight options from Ontario to San Francisco for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,178,849 searches. Data last updated March 25, 2024.

Book one of these great deals on flights from Ontario to San Francisco. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to San Francisco from Ontario

Search for one-way flight options from Ontario to San Francisco. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,178,849 searches. Data last updated March 25, 2024.

Take a look at some of the one-way flights we've detected from Ontario to San Francisco. Users in need of a round-trip flight from Ontario to San Francisco instead should update the search form at the top of page.

Average price of flights to San Francisco by month

Plan your trip from Ontario to San Francisco by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario to San Francisco is currently $35 while a round-trip flight costs $69. Price data was last updated on March 17, 2024.

Currently, October is the cheapest month in which you can book a flight from Ontario to San Francisco (average of $268). Flying from Ontario to San Francisco in June is currently the most expensive (average of $386). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated March 25, 2024.

Read reviews from past customers who have flown Frontier, United Airlines and American Airlines from Ontario to San Francisco. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

• What airports do I use to fly from Ontario to San Francisco?

  To fly from Ontario to San Francisco, you need to book a flight from Ontario (ONT) to San Francisco (SFO). Nonstop flights to San Francisco from Ontario take 1h 25m on average. When it comes time to book airfare, you have a few options: there are 6 outbound flights from Ontario to San Francisco offered by 8 different airlines.

• Can I find flights from Ontario to San Francisco for under $100 on Cheapflights?

  Yes, there are multiple flights from Ontario to San Francisco for under $100. The cheapest flight booked recently is on Frontier for just $48, but on average you can expect to pay $65.

• Are there nonstop flights from Ontario to San Francisco for under $100 on Cheapflights?

  Cheapflights has at least 20 direct flights from Ontario to San Francisco under $100. A good price for a nonstop flight from Ontario to San Francisco is less than $65.

• Are there last-minute flights available from Ontario to San Francisco for under $100?

  There are currently 20+ open flights from Ontario to San Francisco within the next 7 days for less than $100.

• What days are nonstop flights available from Ontario to San Francisco?

  You can find nonstop flights on the following days: Tuesday, Friday, Saturday.

• How popular is this Ontario to San Francisco flight route?

  This flight path from Ontario to San Francisco was viewed by 58 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

• How many flights depart from Ontario to San Francisco on average per day?

  8 flight departures from Ontario to San Francisco per day on average.
  Early Morning (Midnight to 6am) - 63% of flight departures
  Morning (6am - Noon) - 38% of flight departures

• How long is the flight from Ontario to San Francisco?

  A quick flight from Ontario to San Francisco can take about 1h 27m. Frontier provides one of the quickest options available for as low as $48. The distance from Ontario to San Francisco is about 364 mi. All flights are typically nonstop.

• What is the cheapest airline to fly from Ontario to San Francisco round-trip?

  Flying on Frontier is currently your cheapest option to San Francisco, with prices starting at $48. You may be able to fly from Ontario to San Francisco for 66% less than the average price by searching for this airline.

• What are the most popular airlines that fly from Ontario to San Francisco?

  Before booking your flight from Ontario to San Francisco check out the most popular airlines for this route: American Airlines, Alaska Airlines or JetBlue.

• What are the most reliable airlines from Ontario to San Francisco?

  Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ontario to San Francisco on time: United Airlines (75%), SkyWest Airlines (74%), Air Canada (67%).

• What are the cheapest flights from Ontario to San Francisco?

  On average you can expect to pay $786 for a flight from Ontario to San Francisco. The cheapest flight overall is $24 while the most popular route, (Ontario - San Francisco) is currently priced at $48.

• What does ONT to SFO mean?

  ONT and SFO are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ONT to SFO refers to a flight route from Ontario Airport to San Francisco Airport.