San Francisco to Ontario flights: who flies SFO-ONT

San Francisco to Ontario flight schedule

Scheduled nonstop departures for SFO to ONT starting October 22, 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 San Francisco (SFO) to Ontario (ONT)
Date	Flight	Airline	Departs SFO	Arrives ONT	Duration	Aircraft
Thu, Oct 22	UA 2661	United Airlines	10:43	12:18	1h 35m	Boeing 737 MAX 9
Thu, Oct 22	UA 5571	United Airlines	13:41	15:22	1h 41m	Embraer E175
Thu, Oct 22	UA 5467	United Airlines	16:10	17:36	1h 26m	Embraer E175
Thu, Oct 22	F9 1160	Frontier Airlines	18:02	19:40	1h 38m	Airbus A321neo family
Thu, Oct 22	UA 2478	United Airlines	19:00	20:31	1h 31m	Airbus A319
Thu, Oct 22	UA 552	United Airlines	21:25	22:51	1h 26m	Boeing 737 MAX 8
Fri, Oct 23	UA 2661	United Airlines	10:43	12:18	1h 35m	Boeing 737 MAX 9
Fri, Oct 23	UA 5571	United Airlines	13:41	15:22	1h 41m	Embraer E175
Fri, Oct 23	UA 5467	United Airlines	16:10	17:36	1h 26m	Embraer E175
Fri, Oct 23	F9 1160	Frontier Airlines	18:02	19:40	1h 38m	Airbus A321neo family
Fri, Oct 23	UA 2478	United Airlines	19:00	20:31	1h 31m	Airbus A319
Fri, Oct 23	UA 552	United Airlines	21:25	22:51	1h 26m	Boeing 737-800
Sat, Oct 24	UA 5763	United Airlines	08:40	10:23	1h 43m	Embraer E175
Sat, Oct 24	UA 5571	United Airlines	13:41	15:22	1h 41m	Embraer E175
Sat, Oct 24	UA 393	United Airlines	16:15	17:46	1h 31m	Airbus A319
Sat, Oct 24	UA 552	United Airlines	21:25	22:59	1h 34m	Boeing 737-800
Sun, Oct 25	UA 1482	United Airlines	11:00	12:29	1h 29m	Boeing 737 MAX 9
Sun, Oct 25	UA 5592	United Airlines	13:50	15:23	1h 33m	Embraer E175
Sun, Oct 25	UA 4628	United Airlines	16:18	17:55	1h 37m	Embraer E175
Sun, Oct 25	UA 5763	United Airlines	16:19	17:56	1h 37m	Embraer E175
Sun, Oct 25	F9 1160	Frontier Airlines	18:02	19:40	1h 38m	Airbus A321neo family
Sun, Oct 25	UA 1780	United Airlines	18:50	20:15	1h 25m	Boeing 737-800
Sun, Oct 25	UA 2850	United Airlines	18:50	20:15	1h 25m	Boeing 737-800
Sun, Oct 25	UA 552	United Airlines	21:25	22:51	1h 26m	Boeing 737-800
Mon, Oct 26	UA 1482	United Airlines	11:00	12:29	1h 29m	Boeing 737 MAX 9
Mon, Oct 26	UA 5592	United Airlines	14:00	15:33	1h 33m	Embraer E175
Mon, Oct 26	UA 4628	United Airlines	16:18	17:55	1h 37m	Embraer E175
Mon, Oct 26	UA 5763	United Airlines	16:19	17:56	1h 37m	Embraer E175
Mon, Oct 26	F9 1160	Frontier Airlines	18:02	19:40	1h 38m	Airbus A321neo family
Mon, Oct 26	UA 1780	United Airlines	18:50	20:15	1h 25m	Boeing 737-800
Mon, Oct 26	UA 2850	United Airlines	18:50	20:15	1h 25m	Boeing 737-800
Mon, Oct 26	UA 552	United Airlines	21:25	22:51	1h 26m	Boeing 737-800
Tue, Oct 27	UA 1482	United Airlines	11:00	12:29	1h 29m	Boeing 737 MAX 9
Tue, Oct 27	UA 5592	United Airlines	14:00	15:33	1h 33m	Embraer E175
Tue, Oct 27	UA 436	United Airlines	16:35	18:01	1h 26m	Airbus A319
Tue, Oct 27	UA 1780	United Airlines	18:41	20:06	1h 25m	Airbus A320
Wed, Oct 28	UA 1482	United Airlines	11:00	12:29	1h 29m	Boeing 737 MAX 9
Wed, Oct 28	UA 5592	United Airlines	14:00	15:33	1h 33m	Embraer E175
Wed, Oct 28	UA 436	United Airlines	16:35	18:01	1h 26m	Airbus A319
Wed, Oct 28	UA 1780	United Airlines	18:50	20:15	1h 25m	Airbus A320

Showing the first 40 of 41 scheduled SFO to ONT departures across 7 days with service, starting October 22, 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 SFO to ONT date on the interactive map

Aircraft on the San Francisco to Ontario nonstop

In the schedule table on this page, United Airlines flies the Embraer E175, the Boeing 737-800, the Boeing 737 MAX 9, the Airbus A319, the Airbus A320, and the Boeing 737 MAX 8, and Frontier Airlines flies the Airbus A321neo family. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full SFO to ONT nonstop schedule

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

See the schedule

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

Plan on the map

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

Airlines flying San Francisco to Ontario nonstop

Carriers operating SFO to ONT nonstop in the current schedule.

See SFO to ONT on the interactive map →

Frequently asked questions about SFO to ONT

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

Scheduled flight times from San Francisco (SFO) to Ontario (ONT) run from 1h 25m to 1h 43m 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 SFO to ONT?

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

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

About 49 nonstop flights a week run between San Francisco (SFO) and Ontario (ONT) 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 SFO to ONT depart?

Scheduled SFO to ONT nonstops in the next 7 days with service leave between 08:40 and 21:25, local time at San Francisco. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate SFO to ONT nonstop?

The schedule table on this page lists 14 flight numbers for SFO to ONT nonstops, including UA 552, UA 1482, UA 1780, UA 2661, UA 5571, UA 5592, and UA 5763 on United Airlines, and F9 1160 on Frontier Airlines. The table lists each departure by date with its times and aircraft.

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

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