$19+ Cheap flights from San Francisco to Ontario (SFO - ONT)
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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ONT
9月 15 — 9月 221
From?
To?
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Francisco to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.The best prices from San Francisco to Ontario are usually found in May or July, booked 86 days in advance, depart on a Wednesday or Monday 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 9月 10, 2024.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Popular in | January |
Cheapest in | May |
Round-trip from | $42 (Cheapflightsfares) |
One-way from | $19 (Frontier) |
Cheap San Francisco to Ontario flights in September & October 2024
Find cheap flight options from San Francisco to Ontario specifically for the months of September and October 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,868,638 searches. Prices were last updated on 9月 10, 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.
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周三 9/181:20 pmSFO - ONT
Nonstop1h 28mFrontier
周三 10/23:48 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$46
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周二 10/84:20 pmSFO - ONT
Nonstop1h 27mFrontier
周二 10/151:46 pmONT - SFO
Nonstop1h 34mFrontier
Deal found 9/9![Frontier logo]()
$47
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周三 10/95:40 pmSFO - ONT
Nonstop1h 25mFrontier
周三 10/163:11 pmONT - SFO
Nonstop1h 27mFrontier
Deal found 9/9![Frontier logo]()
$48
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周一 9/231:30 pmSFO - ONT
Nonstop1h 28mFrontier
周二 9/241:32 pmONT - SFO
Nonstop1h 35mFrontier
Deal found 9/9![Frontier logo]()
$51
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周四 9/191:30 pmSFO - ONT
Nonstop1h 28mFrontier
周三 9/253:48 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$52
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周六 9/211:25 pmSFO - ONT
Nonstop1h 28mFrontier
周三 9/253:48 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/10![Frontier logo]()
$53
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周六 9/211:25 pmSFO - ONT
Nonstop1h 28mFrontier
周六 9/283:53 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周日 9/221:20 pmSFO - ONT
Nonstop1h 28mFrontier
周六 9/283:53 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/10![Frontier logo]()
$55
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周一 10/71:30 pmSFO - ONT
Nonstop1h 28mFrontier
周二 10/221:46 pmONT - SFO
Nonstop1h 34mFrontier
Deal found 9/9![Frontier logo]()
$56
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 2,868,638 searches. Data last updated 9月 10, 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.
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周三 9/181:20 pmSFO - ONT
Nonstop1h 28mFrontier
周三 10/23:48 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$46
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周二 10/84:20 pmSFO - ONT
Nonstop1h 27mFrontier
周二 10/151:46 pmONT - SFO
Nonstop1h 34mFrontier
Deal found 9/9![Frontier logo]()
$47
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周三 10/95:40 pmSFO - ONT
Nonstop1h 25mFrontier
周三 10/163:11 pmONT - SFO
Nonstop1h 27mFrontier
Deal found 9/9![Frontier logo]()
$48
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周一 9/231:30 pmSFO - ONT
Nonstop1h 28mFrontier
周二 9/241:32 pmONT - SFO
Nonstop1h 35mFrontier
Deal found 9/9![Frontier logo]()
$51
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周四 9/191:30 pmSFO - ONT
Nonstop1h 28mFrontier
周三 9/253:48 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$52
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周六 9/211:25 pmSFO - ONT
Nonstop1h 28mFrontier
周三 9/253:48 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/10![Frontier logo]()
$53
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周六 9/211:25 pmSFO - ONT
Nonstop1h 28mFrontier
周六 9/283:53 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周日 9/221:20 pmSFO - ONT
Nonstop1h 28mFrontier
周六 9/283:53 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/10![Frontier logo]()
$55
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周一 10/71:30 pmSFO - ONT
Nonstop1h 28mFrontier
周二 10/221:46 pmONT - SFO
Nonstop1h 34mFrontier
Deal found 9/9![Frontier logo]()
$56
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 2,868,638 searches. Data last updated 9月 10, 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.
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周二 9/174:07 pmSFO - ONT
Nonstop1h 29mFrontier
周三 9/183:48 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$46
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周二 9/174:07 pmSFO - ONT
Nonstop1h 29mFrontier
周三 10/93:11 pmONT - SFO
Nonstop1h 27mFrontier
Deal found 9/9![Frontier logo]()
$47
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周四 9/191:30 pmSFO - ONT
Nonstop1h 28mFrontier
周三 9/253:48 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$51
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周四 9/191:30 pmSFO - ONT
Nonstop1h 28mFrontier
周三 9/253:48 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$52
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周四 9/191:30 pmSFO - ONT
Nonstop1h 28mFrontier
周四 9/263:58 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$57
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周一 9/161:30 pmSFO - ONT
Nonstop1h 28mFrontier
周二 9/171:32 pmONT - SFO
Nonstop1h 35mFrontier
Deal found 9/9![Frontier logo]()
$67
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周一 9/161:30 pmSFO - ONT
Nonstop1h 28mFrontier
周四 9/193:58 pmONT - SFO
Nonstop1h 24mFrontier
Deal found 9/9![Frontier logo]()
$72
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周二 9/174:07 pmSFO - ONT
Nonstop1h 29mFrontier
周三 10/96:30 amONT - SFO
1 stop6h 12mFrontier
Deal found 9/9![Frontier logo]()
$77
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周三 9/181:20 pmSFO - ONT
Nonstop1h 28mFrontier
周三 10/23:21 pmONT - SFO
1 stop8h 57mFrontier
Deal found 9/9![Frontier logo]()
$78
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 2,868,638 searches. Data last updated 9月 10, 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.
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周六 10/51:25 pmSFO - ONT
Nonstop1h 28mFrontier
Deal found 9/9![Frontier logo]()
$19
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周三 9/251:20 pmSFO - ONT
Nonstop1h 28mFrontier
Deal found 9/9![Frontier logo]()
$23
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周三 10/95:40 pmSFO - ONT
Nonstop1h 25mFrontier
Deal found 9/10![Frontier logo]()
$24
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周二 9/244:07 pmSFO - ONT
Nonstop1h 29mFrontier
Deal found 9/9![Frontier logo]()
$25
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周二 9/174:07 pmSFO - ONT
Nonstop1h 29mFrontier
Deal found 9/10![Frontier logo]()
$26
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周三 10/95:40 pmSFO - ONT
Nonstop1h 25mFrontier
Deal found 9/9![Frontier logo]()
$27
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周四 9/191:30 pmSFO - ONT
Nonstop1h 28mFrontier
Deal found 9/10![Frontier logo]()
$28
This CheapOair deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周六 9/211:25 pmSFO - ONT
Nonstop1h 28mFrontier
Deal found 9/9![Frontier logo]()
$29
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
周四 10/248:03 amSFO - ONT
Nonstop1h 28mFrontier
Deal found 9/9![Frontier logo]()
$30
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 2,868,638 searches. Data last updated 9月 10, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$42 - $54
Route
Depart
Return
Price
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
周二 9/24
Nonstop1h 29m
Ontario
周六 10/5
Nonstop1h 24m
$42
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
周三 10/2
Nonstop1h 28m
Ontario
周六 10/5
Nonstop1h 24m
$43
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
周三 10/9
Nonstop1h 25m
Ontario
周三 10/16
Nonstop1h 27m
$46
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
周二 10/8
Nonstop1h 27m
Ontario
周三 10/9
Nonstop1h 27m
$47
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
周三 10/9
Nonstop1h 25m
Ontario
周三 10/16
Nonstop1h 27m
$48
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
周一 9/23
Nonstop1h 28m
Ontario
周三 9/25
Nonstop1h 24m
$51
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
周六 10/19
Nonstop1h 29m
Ontario
周日 10/20
Nonstop1h 28m
$52
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
周三 9/25
Nonstop1h 28m
Ontario
周四 9/26
Nonstop1h 24m
$53
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
周六 9/21
Nonstop1h 28m
Ontario
周六 9/28
Nonstop1h 24m
$54
Compare providers for flights from San Francisco to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Ontario in September.
| Provider | Price Accuracy | Trust Score* | Cancellation Policy |
|---|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | Cancellation PolicyAirline Policy | |
| Price Accuracy3 stars | Trust Score*3 stars | Cancellation PolicyAirline Policy | |
| Price Accuracy3 stars | Trust Score*3 stars | Cancellation PolicyAirline Policy | |
| Price Accuracy3 stars | Trust Score*3 stars | Cancellation PolicyNo Information | |
| Price Accuracy3 stars | Trust Score*3 stars | Cancellation PolicyAirline Policy | |
| Price Accuracy3 stars | Trust Score*3 stars | Cancellation PolicyAirline Policy | |
| Price Accuracy3 stars | Trust Score*3 stars | Cancellation PolicyAirline Policy | |
| Price Accuracy2 stars | Trust Score*3 stars | Cancellation PolicyAirline Policy | |
| Price Accuracy1 star | Trust Score*3 stars | Cancellation PolicyAirline Policy | |
| Price Accuracy3 stars | Trust Score*3 stars | Cancellation PolicyAirline Policy |
- Most accurate provider: When it comes to deals on San Francisco-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from San Francisco to Ontario
Get recent, data-driven insights about flights from San Francisco to Ontario including ideal travel times, pricing trends, and more.
How far ahead should I 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 September 6, 2024.
Booking 86 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.
What is the cheapest month to book a flight from San Francisco to Ontario?
Currently, August is the cheapest month in which you can book a flight from San Francisco to Ontario (average of $19). Flying from San Francisco to Ontario in December is currently the most expensive (average of $44). 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.
What is the cheapest time of day to fly from SFO to ONT?
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 9月 10, 2024.
Unlike in the evening, when flights are generally more expensive, you can save up to 40% on flights from San Francisco to Ontario by exploring options for tickets at noon.
What is the cheapest day 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 September 8, 2024.
Travelers seeking maximum savings on their San Francisco to Ontario flight should consider departing on Saturday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 9月 10, 2024.
The most flights from SFO to ONT are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).
What are the most popular airlines that fly from San Francisco to Ontario?
Our users search for these airlines the most when looking for flights from San Francisco to Ontario. Data last updated on 9月 10, 2024.
Before booking your flight from San Francisco to Ontario check out the most popular airlines for this route: Frontier, United Airlines or Spirit Airlines.
Rainfall in Ontario by month
Plan your trip to Ontario by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.
Temperature in Ontario by month
Plan your trip to Ontario by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 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 9月 10, 2024.
Get a feel of what it's like to fly with Frontier, Southwest and United Airlines 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.
5,353 reviews
Crew
8.7
Entertainment
7.8
Food
7.3
Boarding
8.3
Comfort
8.1
Overall
8.2
Reviews
1 / 10
No issues. I needed pre boarding and I was able to get it without issue
5,353 reviews
5,353 reviews
Crew
8.7
Entertainment
7.8
Food
7.3
Boarding
8.3
Comfort
8.1
Overall
8.2
Reviews
1 / 10
No issues. I needed pre boarding and I was able to get it without issue
9,358 reviews
5,353 reviews
Crew
8.7
Entertainment
7.8
Food
7.3
Boarding
8.3
Comfort
8.1
Overall
8.2
Reviews
1 / 10
No issues. I needed pre boarding and I was able to get it without issue
9,584 reviews
5,353 reviews
Crew
8.7
Entertainment
7.8
Food
7.3
Boarding
8.3
Comfort
8.1
Overall
8.2
Reviews
1 / 10
No issues. I needed pre boarding and I was able to get it without issue
10,000 reviews
5,353 reviews
Crew
8.7
Entertainment
7.8
Food
7.3
Boarding
8.3
Comfort
8.1
Overall
8.2
Reviews
1 / 10
No issues. I needed pre boarding and I was able to get it without issue