Cheap flights from San Francisco to Ontario (SFO - ONT) from $24
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
The best prices from San Francisco to Ontario are usually found in February or May, booked 79 days in advance, depart on a Monday or Tuesday and return on a Tuesday
Cheap flight deals from San Francisco to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Ontario (ONT). 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 April 24, 2024.
Popular in | January |
|---|---|
Cheapest in | February |
Round-trip from | $238 |
One-way from | $24 |
What is the cheapest day to fly round-trip from San Francisco to Ontario?
Saturday flights are generally found to be more expensive for flights from San Francisco to Ontario. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ontario.
How far in advance should I book a flight from San Francisco to Ontario?
Find a great deal and save up to 59% by booking at least 38 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Francisco to Ontario within the next two weeks, with the cheapest ticket starting at $129.
What is the cheapest month to fly from San Francisco to Ontario?
Flights from San Francisco to Ontario lean towards being more expensive in November. Prices are generally better when you fly from San Francisco to Ontario in January, with the cheapest ticket starting at $49.
When is the cheapest time to fly from San Francisco to Ontario (SFO - ONT)?
Unlike in the evening, when flights are generally more expensive, you can save up to 35% on flights from San Francisco to Ontario by exploring options for tickets in the afternoon.
Cheap Frontier flights from San Francisco to Ontario
Explore cheap flight options specifically provided by Frontier for the route between San Francisco and Ontario. 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 3,068,701 searches. Data last updated April 24, 2024.
Find some of the cheapest Frontier flights traveling from San Francisco to Ontario. Make sure to double check the flight details before booking.
Cheap United Airlines flights from San Francisco to Ontario
Explore cheap flight options specifically provided by United Airlines for the route between San Francisco and Ontario. 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 3,068,701 searches. Data last updated April 24, 2024.
Some of the best deals we've found on United Airlines flights traveling from San Francisco to Ontario. Deals are refreshing constantly so come back soon for more options.
Cheap San Francisco to Ontario flights in April & May 2024
Find cheap flight options from San Francisco to Ontario specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Prices were last updated on April 24, 2024.
These are some of the best deals we've found on flights to Ontario in 2024 at this time. For more flight deals, be sure to check back very soon.
San Francisco to Ontario 2024 flight deals
Discover exclusive flight deals for travel between San Francisco and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 24, 2024.
These are some of the best deals we've found on flights to Ontario in 2024 at this time. For more flight deals, be sure to check back very soon.
Non-stop flights to Ontario from San Francisco
Discover non-stop flight options from San Francisco to Ontario. 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 3,068,701 searches. Data last updated April 24, 2024.
For a quicker trip, book one of these direct flights from San Francisco to Ontario. Users seeking other options on flights from San Francisco to Ontario should update the search form at the top of the page.
San Francisco to Ontario flights leaving soon
Find last-minute flight options from San Francisco to Ontario 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 3,068,701 searches. Data last updated April 24, 2024.
Have a look at some of the last-minute flights available departing from San Francisco to Ontario. Users should examine the flight details to ensure there are no surprises.
One-way flights to Ontario from San Francisco
Search for one-way flight options from San Francisco to Ontario. 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 3,068,701 searches. Data last updated April 24, 2024.
Users traveling one-way from San Francisco to Ontario can select one of these great deals. Users needing a return flight from San Francisco to Ontario should utilize the search form above.
Find flights from San Francisco to Ontario within your budget
Customize your flight search to find flights from San Francisco to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 24, 2024.
Fly from
Fly to
Budget
$43 - $199
Route
Depart
Return
Price
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Tue 5/14
Nonstop1h 29m
Ontario
Tue 5/21
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Sat 5/18
Nonstop1h 24m
Ontario
Tue 5/21
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Sat 5/4
Nonstop1h 30m
Ontario
Tue 5/7
Nonstop1h 27m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Sat 5/11
Nonstop1h 30m
Ontario
Tue 5/14
Nonstop1h 27m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Wed 5/8
Nonstop1h 29m
Ontario
Tue 5/14
Nonstop1h 27m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Tue 5/21
Nonstop1h 24m
Ontario
Tue 5/28
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Tue 5/14
Nonstop1h 29m
Ontario
Fri 5/17
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Wed 5/29
2 stops9h 58m
Ontario
Sun 6/2
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Thu 5/30
Nonstop1h 35m
Ontario
Mon 6/3
Nonstop1h 25m
When is the best time to book a flight from San Francisco to Ontario?
Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Ontario. Price data was last updated on January 28, 2024.
Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
When is the cheapest time to fly from San Francisco to Ontario?
Use this chart to determine the cheapest time to fly round-trip from San Francisco to Ontario. Price data was last updated on April 21, 2024.
Average price of flights to Ontario by month
Plan your trip from San Francisco to Ontario by taking into account the cheapest months to travel. The average price of a one-way flight from San Francisco to Ontario is currently $30 while a round-trip flight costs $82. Price data was last updated on April 21, 2024.
Currently, October is the cheapest month in which you can book a flight from San Francisco to Ontario (average of $237). Flying from San Francisco to Ontario in June is currently the most expensive (average of $346). 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.
January
$270
February
$287
March
$281
April
$258
May
$271
June
$346
July
$335
August
$287
September
$258
October
$237
November
$268
December
$271
Temperature and rainfall in Ontario by month
Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.
LAX Temperature | 57.2 - 73.4 °F |
|---|
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 24, 2024.
Get a feel of what it's like to fly with Frontier, United Airlines and Southwest from San Francisco to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Crew
Food
Entertainment
Overall
Comfort
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Boarding
Crew
Food
Entertainment
Overall
Comfort
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Boarding
Crew
Food
Entertainment
Overall
Comfort
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Boarding
Crew
Food
Entertainment
Overall
Comfort
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Boarding
Crew
Food
Entertainment
Overall
Comfort
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Boarding
Crew
Food
Entertainment
Overall
Comfort
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Francisco to OntarioSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from San Francisco to Ontario
Discover the top 7 airlines that operate flights from San Francisco to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 24, 2024.
Search flights from San Francisco to Ontario by cabin class
Find flights from San Francisco to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from San Francisco to Ontario
Find hourly flight availability from San Francisco to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2024.
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 41%of flight departures | Morning6 am to noon |
| 0%of flight departures | AfternoonNoon to 6 pm |
| 58%of flight departures | Evening6 pm to midnight |
Weekly flight availability from San Francisco to Ontario
Explore weekly flight availability from San Francisco to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 24, 2024.
| Sunday | 4daily flights |
|---|---|
| Monday | 6daily flights |
| Tuesday | 6daily flights |
| Wednesday | 6daily flights |
| Thursday | 6daily flights |
| Friday | 6daily flights |
| Saturday | 2daily flights |
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from San Francisco to Ontario?
Deals for San Francisco to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from San Francisco to Ontario?
Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from San Francisco to Ontario with no change fees?
Yes, we can. To see specific flights from San Francisco to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from San Francisco to Ontario become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from San Francisco today and book when prices fit your budget.