Cheap flights from Ontario to San Francisco (ONT - SFO)
ONT — SFO
Aug 16 — Aug 231
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1 adult, Economy
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The best prices from Ontario to San Francisco are usually found in January or September, booked 30 days in advance, depart on a Wednesday or Saturday and return on a Monday
How to find the cheapest flight from Ontario (ONT) to San Francisco (SFO)
All the information you need to plan the best ONT to SFO flight in 2022: compare Ontario to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.
ONT - SFO Price | $73 - $227 |
|---|---|
SFO Temperature | 51.8 - 62.6 °F |
SFO Rainfall | 0 - 4.4 inches |
| Popular in | June | High demand for flights, 39% potential price rise |
|---|---|---|
| Cheapest in | January | Best time to find cheap flights, 47% potential price drop |
| Round-trip from | $73 | From Ontario to San Francisco |
| One-way from | $22 | One-way flight from Ontario to San Francisco |
Cheap Frontier flights from Ontario to San Francisco
Sep 13 - Sep 20![]()
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ONT
Ontario
SFO
San Francisco
Nonstop
1h 23mSFO
San Francisco
ONT
Ontario
Nonstop
1h 29m$43
Frontier
Sep 8 - Sep 10![]()
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ONT
Ontario
SFO
San Francisco
Nonstop
1h 23mSFO
San Francisco
ONT
Ontario
Nonstop
1h 29m$44
Frontier
Sep 7 - Sep 15![]()
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ONT
Ontario
SFO
San Francisco
Nonstop
1h 23mSFO
San Francisco
ONT
Ontario
Nonstop
1h 29m$47
Frontier
Cheap United Airlines flights from Ontario to San Francisco
Aug 20 - Aug 27![]()
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ONT
Ontario
SFO
San Francisco
Nonstop
1h 22mSFO
San Francisco
ONT
Ontario
Nonstop
1h 31m$209
United Airlines
Aug 21 - Aug 25![]()
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ONT
Ontario
SFO
San Francisco
Nonstop
1h 22mSFO
San Francisco
ONT
Ontario
Nonstop
1h 31m$225
United Airlines
Aug 16 - Aug 24![]()
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ONT
Ontario
SFO
San Francisco
Nonstop
1h 28mSFO
San Francisco
ONT
Ontario
Nonstop
1h 31m$229
United Airlines
Related info for your journey
Useful info, stats and facts about Ontario to San Francisco flights.
Other flights from Ontario
Flights to San Francisco from Ontario
Alternative routes for Ontario to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.
Santa Maria to Fresnofrom $9 pp
Crescent City to San Franciscofrom $13 pp
San Luis Obispo to San Diegofrom $14 pp
San Diego to Visaliafrom $15 pp
Santa Barbara to Fresnofrom $19 pp
Ontario to Oaklandfrom $20 pp
Top 9 airlines flying from Ontario to San Francisco
The chart below displays the airlines Cheapflights users traveling from Ontario to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Hourly flight availability from Ontario to San Francisco
See what time of day planes typically take off from Ontario to San Francisco
| 34%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 4%of flight departures | Morning6 am to noon |
| 62%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
Weekly flight availability from Ontario to San Francisco
See how many times per day planes take to the skies headed from Ontario to San Francisco
| Sunday | 8daily flights |
|---|---|
| Monday | 8daily flights |
| Tuesday | 9daily flights |
| Wednesday | 9daily flights |
| Thursday | 9daily flights |
| Friday | 9daily flights |
| Saturday | 7daily flights |