Ontario to San Francisco flights: who flies ONT-SFO

Ontario to San Francisco flight schedule

Scheduled nonstop departures for ONT to SFO starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Ontario (ONT) to San Francisco (SFO)
Date	Flight	Airline	Departs ONT	Arrives SFO	Duration	Aircraft
Fri, Oct 23	UA 2363	United Airlines	06:08	07:35	1h 27m	Boeing 737-800
Fri, Oct 23	UA 1387	United Airlines	09:25	10:54	1h 29m	Airbus A319
Fri, Oct 23	F9 1159	Frontier Airlines	12:01	13:32	1h 31m	Airbus A320neo
Fri, Oct 23	UA 1375	United Airlines	13:52	15:21	1h 29m	Boeing 737 MAX 9
Fri, Oct 23	UA 5483	United Airlines	16:03	17:50	1h 47m	Embraer E175
Fri, Oct 23	UA 5396	United Airlines	18:32	20:19	1h 47m	Embraer E175
Sat, Oct 24	UA 1387	United Airlines	08:03	09:30	1h 27m	Boeing 737-800
Sat, Oct 24	UA 5330	United Airlines	11:10	12:43	1h 33m	Embraer E175
Sat, Oct 24	UA 1375	United Airlines	13:52	15:21	1h 29m	Boeing 737 MAX 9
Sat, Oct 24	UA 5483	United Airlines	16:03	17:50	1h 47m	Embraer E175
Sun, Oct 25	UA 2363	United Airlines	06:08	07:35	1h 27m	Boeing 737-800
Sun, Oct 25	UA 432	United Airlines	09:25	10:55	1h 30m	Airbus A319
Sun, Oct 25	F9 1159	Frontier Airlines	12:01	13:32	1h 31m	Airbus A320neo
Sun, Oct 25	UA 1375	United Airlines	13:35	15:05	1h 30m	Boeing 737 MAX 9
Sun, Oct 25	F9 2677	Frontier Airlines	14:26	15:56	1h 30m	Airbus A321
Sun, Oct 25	UA 5577	United Airlines	16:04	17:37	1h 33m	Embraer E175
Sun, Oct 25	UA 4699	United Airlines	18:36	20:09	1h 33m	Embraer E175
Sun, Oct 25	UA 1665	United Airlines	19:13	20:56	1h 43m	Boeing 737-800
Mon, Oct 26	UA 2363	United Airlines	06:08	07:35	1h 27m	Boeing 737-800
Mon, Oct 26	UA 432	United Airlines	09:00	10:30	1h 30m	Airbus A320
Mon, Oct 26	F9 1159	Frontier Airlines	12:01	13:32	1h 31m	Airbus A320neo
Mon, Oct 26	UA 1375	United Airlines	13:35	15:05	1h 30m	Boeing 737 MAX 9
Mon, Oct 26	UA 5577	United Airlines	16:04	17:37	1h 33m	Embraer E175
Mon, Oct 26	UA 4699	United Airlines	18:36	20:09	1h 33m	Embraer E175
Mon, Oct 26	UA 1665	United Airlines	19:13	20:56	1h 43m	Boeing 737-800
Tue, Oct 27	UA 2363	United Airlines	06:08	07:35	1h 27m	Boeing 737-800
Tue, Oct 27	UA 432	United Airlines	09:25	10:55	1h 30m	Boeing 737-800
Tue, Oct 27	UA 1375	United Airlines	13:35	15:05	1h 30m	Boeing 737 MAX 9
Tue, Oct 27	UA 5577	United Airlines	16:17	17:50	1h 33m	Embraer E175
Tue, Oct 27	UA 4699	United Airlines	18:36	20:09	1h 33m	Embraer E175
Tue, Oct 27	UA 1665	United Airlines	18:53	20:22	1h 29m	Boeing 737 MAX 8
Wed, Oct 28	UA 2363	United Airlines	06:08	07:35	1h 27m	Boeing 737-800
Wed, Oct 28	UA 432	United Airlines	09:25	10:55	1h 30m	Boeing 737-800
Wed, Oct 28	UA 1375	United Airlines	13:35	15:05	1h 30m	Boeing 737 MAX 9
Wed, Oct 28	UA 5577	United Airlines	16:17	17:50	1h 33m	Embraer E175
Wed, Oct 28	UA 4699	United Airlines	18:36	20:09	1h 33m	Embraer E175
Wed, Oct 28	UA 1665	United Airlines	18:53	20:22	1h 29m	Boeing 737 MAX 8
Thu, Oct 29	UA 2363	United Airlines	06:08	07:35	1h 27m	Boeing 737-800
Thu, Oct 29	UA 432	United Airlines	09:25	10:55	1h 30m	Boeing 737-800
Thu, Oct 29	F9 1159	Frontier Airlines	11:38	13:12	1h 34m	Airbus A320neo

Showing the first 40 of 45 scheduled ONT to SFO departures across 7 days with service, starting October 23, 2026. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every ONT to SFO date on the interactive map

Aircraft on the Ontario to San Francisco nonstop

In the schedule table on this page, United Airlines flies the Boeing 737-800, the Embraer E175, the Boeing 737 MAX 9, the Airbus A319, the Boeing 737 MAX 8, and the Airbus A320, and Frontier Airlines flies the Airbus A320neo and the Airbus A321. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full ONT to SFO nonstop schedule

This page carries the full ONT to SFO nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See the schedule

Who operates each ONT to SFO nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See ONT to SFO on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Ontario to San Francisco nonstop

Carriers operating ONT to SFO nonstop in the current schedule.

See ONT to SFO on the interactive map →

Frequently asked questions about ONT to SFO

How long is the flight from Ontario (ONT) to San Francisco (SFO)?

Scheduled flight times from Ontario (ONT) to San Francisco (SFO) run from 1h 27m to 1h 47m across the departures in the schedule table on this page. The nonstop covers about 364 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from ONT to SFO?

United Airlines and Frontier Airlines fly ONT to SFO nonstop. 2LNR doesn't show award or upgrade space for any of them on ONT to SFO, so this page carries the schedule rather than a space claim.

How many flights a week are there from ONT to SFO?

About 51 nonstop flights a week run between Ontario (ONT) and San Francisco (SFO) in the current schedule, operated by United Airlines and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from ONT to SFO depart?

Scheduled ONT to SFO nonstops in the next 7 days with service leave between 06:08 and 19:13, local time at Ontario. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate ONT to SFO nonstop?

The schedule table on this page lists 12 flight numbers for ONT to SFO nonstops, including UA 432, UA 1375, UA 1387, UA 1665, UA 2363, UA 4699, and UA 5577 on United Airlines, and F9 1159 on Frontier Airlines. The table lists each departure by date with its times and aircraft.

Does 2LNR show upgrade or award space on ONT to SFO?

Not on this route: 2LNR doesn't show award or upgrade space for any airline flying ONT to SFO. The page carries the full ONT to SFO nonstop schedule and who flies each departure, and the reverse direction is linked below.