United Airlines
Star Alliance
Did you mean flights from San Francisco to Ontario?
United States
Ontario International Airport
Switch direction
United States
San Francisco International Airport
Click to show full flight schedule
Scan through all non-stop flights from Ontario to San Francisco. The full flight schedule below gives an overview of all non-stop flights from ONT to SFO, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
In San Francisco, the summers are known for being warm, long, and dry, with temperatures typically reaching about 30°C (86°F). The area’s breathtaking scenery complements the sun-filled lifestyle, making it a popular destination for visitors all year round who are looking for relaxation, fun by the water, and the beauty of the outdoors.
San Francisco is best explored from mid-spring to summer, specifically between April and September, as most rainfall occurs from October to February.
In total there are 2 airlines operating nonstop flights from Ontario ONT to San Francisco SFO. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their ONT SFO flight schedule.
Flights from ONT to SFO are operated 29 times a week, with an average of 4 flights per day. Departure times vary between 06:00 - 20:17. The earliest flight departs at 06:00, the last flight departs at 20:17. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Ontario to San Francisco takes 1 hour and 42 minutes. The flight distance between Ontario and San Francisco is 363 miles (or 584 km).
There are 2 airports in San Francisco: San Francisco International Airport (SFO) and Norman Y. Mineta San Jose International Airport (SJC).
There are 29 flights per week flying from Ontario to San Francisco (as of April 2026).
1 hour and 42 minutes is the average flight time from Ontario to San Francisco.
The distance from Ontario to San Francisco is 363 miles (584 kilometers).
Frontier Airlines and United Airlines are flying nonstop from Ontario to San Francisco.
Star Alliance is currently the only alliance flying nonstop from Ontario to San Francisco.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Ontario to San Francisco:
The earliest flight departs at 06:00 from Ontario and arrives at 07:29 at San Francisco.
The latest flight departs at 20:17 from Ontario and arrives at 21:55 at San Francisco.
363 miles (584 km) · 1h 42m
06:00
07:29
United Airlines
Star Alliance
UA 2363
United Airlines
Boeing 737 MAX 9
Y
W
J
F
06:00
07:29
United Airlines
Star Alliance
UA 2363
United Airlines
Boeing 737-900
Y
W
J
F
06:00
07:29
United Airlines
Star Alliance
UA 2363
United Airlines
Boeing 737 MAX 9
Y
W
J
F
06:00
07:29
United Airlines
Star Alliance
UA 2363
United Airlines
Boeing 737 MAX 9
Y
W
J
F
08:49
10:30
Frontier Airlines
F9 2677
Frontier Airlines
Airbus A320neo
Y
W
J
F
08:49
10:35
Frontier Airlines
F9 2677
Frontier Airlines
Airbus A320neo
Y
W
J
F
09:10
10:50
Frontier Airlines
F9 2677
Frontier Airlines
Airbus A320neo
Y
W
J
F
10:45
12:14
United Airlines
Star Alliance
UA 1851
United Airlines
Boeing 737-900
Y
W
J
F
10:49
12:19
United Airlines
Star Alliance
UA 2248
United Airlines
Airbus A320-100/200
Y
W
J
F
10:49
12:27
United Airlines
Star Alliance
UA 6040
United Airlines
Embraer 175
Y
W
J
F
11:05
12:35
United Airlines
Star Alliance
UA 2248
United Airlines
Airbus A319
Y
W
J
F
11:05
12:34
United Airlines
Star Alliance
UA 2248
United Airlines
Boeing 737 MAX 8
Y
W
J
F
11:05
12:35
United Airlines
Star Alliance
UA 2248
United Airlines
Airbus A319
Y
W
J
F
11:05
12:34
United Airlines
Star Alliance
UA 2248
United Airlines
Boeing 737 MAX 8
Y
W
J
F
13:27
14:57
United Airlines
Star Alliance
UA 1375
United Airlines
Airbus A320-100/200
Y
W
J
F
13:27
14:56
United Airlines
Star Alliance
UA 1375
United Airlines
Boeing 737 MAX 8
Y
W
J
F
13:27
14:56
United Airlines
Star Alliance
UA 1375
United Airlines
Boeing 737 MAX 8
Y
W
J
F
13:27
14:57
United Airlines
Star Alliance
UA 1375
United Airlines
Airbus A319
Y
W
J
F
13:27
14:57
United Airlines
Star Alliance
UA 1375
United Airlines
Airbus A320-100/200
Y
W
J
F
13:27
14:56
United Airlines
Star Alliance
UA 1375
United Airlines
Boeing 737-800
Y
W
J
F
13:27
14:56
United Airlines
Star Alliance
UA 1375
United Airlines
Boeing 737 MAX 8
Y
W
J
F
13:30
14:59
United Airlines
Star Alliance
UA 1375
United Airlines
Boeing 737 MAX 9
Y
W
J
F
18:45
20:15
United Airlines
Star Alliance
UA 1665
United Airlines
Airbus A319
Y
W
J
F
18:49
20:18
United Airlines
Star Alliance
UA 1665
United Airlines
Boeing 737 MAX 8
Y
W
J
F
18:49
20:18
United Airlines
Star Alliance
UA 1665
United Airlines
Boeing 737 MAX 8
Y
W
J
F
18:49
20:18
United Airlines
Star Alliance
UA 1665
United Airlines
Boeing 737 MAX 8
Y
W
J
F
18:49
20:18
United Airlines
Star Alliance
UA 1665
United Airlines
Boeing 737-800
Y
W
J
F
18:59
20:28
United Airlines
Star Alliance
UA 1665
United Airlines
Boeing 737-900
Y
W
J
F
Click to Check Prices
