Cheap flights from San Francisco to Ontario, CA
Travel > North America > United States > San Francisco to Ontario, CA flights
Check our current prices for flights from San Francisco to Ontario, CA. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from San Francisco to Ontario, CA, you will need to run a search below.
Search and Compare cheap Flights

Book your flight now with Cheapoair.com and save!
Cheap Ontario airfares from $81/RT are provided by Cheapoair.com. Outbound flight is leaving on 03/12/2025, 02:53 pm from San Francisco Intl (SFO) airport and arrives at Ontario Int`l (ONT) at 12:04 am. The flight time is 9 hours and 11 minutes. The Returning flight departes on 03/25/2025, 10:52 am (other return dates are also available). Date posted: 29 Jan 2025
Price evolution for flights From San Francisco To Ontario, CA

Recent Deals on Flights from San Francisco to Ontario, CA:Roundtrip / Oneway
- $81
Multiple Airlines
cheapoair.com check priceFrom To Departure Time San Francisco, CA (SFO) Ontario, CA (ONT) 03/12/2025 02:53 pm Ontario, CA (ONT) San Francisco, CA (SFO) 03/25/2025 10:52 am - $108
Multiple Airlines
cheapoair.com check priceFrom To Departure Time San Francisco, CA (SFO) Ontario, CA (ONT) 02/26/2025 10:59 pm Ontario, CA (ONT) San Francisco, CA (SFO) 03/09/2025 10:18 am - $119
Frontier Airlines
cheapoair.com check priceFrom To Departure Time San Francisco, CA (SFO) Ontario, CA (ONT) 03/12/2025 10:59 pm Ontario, CA (ONT) San Francisco, CA (SFO) 03/25/2025 02:43 pm - $194
Frontier Airlines
cheapoair.com check priceFrom To Departure Time San Francisco, CA (SFO) Ontario, CA (ONT) 02/26/2025 06:00 am Ontario, CA (ONT) San Francisco, CA (SFO) 03/09/2025 08:26 am - $24
Frontier Airlines
cheapoair.com check priceFrom To Departure Time San Francisco, CA (SFO) Ontario, CA (ONT) 03/02/2025 08:06 am - $54
Frontier Airlines
cheapoair.com check priceFrom To Departure Time San Francisco, CA (SFO) Ontario, CA (ONT) 02/21/2025 08:06 am - $65
Frontier Airlines
cheapoair.com check priceFrom To Departure Time San Francisco, CA (SFO) Ontario, CA (ONT) 03/11/2025 11:12 am
Recently found cheap flight deals
Montreal To Phoenix Porter Airlines airfares from Montreal in March
$463 Depart: 03/11/2025
Return: 04/02/2025
provided by Cheapoair.com
Fort Lauderdale To Los Angeles Multiple Airlines airfares from Fort Lauderdale in February
$295 Depart: 02/23/2025
Return: 03/09/2025
provided by Cheapoair.com
Salt Lake City To Kansas City Multiple Airlines airfares from Salt Lake City in January
$587 Depart: 01/05/2025
Return: 01/20/2025
provided by Cheapoair.com
San Francisco To Marseille Thy Turkish Airlines airfares from San Francisco in May
$1533 Depart: 05/16/2024
Return: 05/29/2024
provided by Cheapoair.com
Los Angeles To Changi Cathay Pacific airfares from Los Angeles in March
$874 Depart: 03/12/2025
Return: 03/21/2025
provided by Cheapoair.com
New York City To Moscow Emirates Airlines airfares from New York City in October
$3500 Depart: 10/28/2024
Return: 11/03/2024
provided by Cheapoair.com
Los Angeles To Vilnius Multiple Airlines airfares from Los Angeles in February
$559 Depart: 02/25/2025
Return: 03/18/2025
provided by Cheapoair.com
Boston To Basel Thy Turkish Airlines airfares from Boston in December
$812 Depart: 12/01/2024
Return: 12/08/2024
provided by Cheapoair.com
Westchester County To West Palm Beach Multiple Airlines airfares from Westchester County in December
$684 Depart: 12/19/2020
Return: 12/26/2020
provided by Cheapoair.com
Specify your search details. Browse the cheapest flights from San Francisco to Ontario, CA, Ontario, CA hotel rooms and San Francisco to Ontario, CA vacation packages from the most popular providers, airline consolidators and travel search engines.
Know what to do when flying to Ontario, CA?
Ontario Travel Guide A city in the San Bernardino County in California, Ontario offers wonderful living conditions for its residents. Over the years its reputation as a significant tourist attraction has also grown considerably. The city got the name of Ontario [...]Ontario History Ontario City is situated in the San Bernardino County (California) which is in United States. According to 2000 census, recorded population in Ontario was 170,373. The lands of Ontario were earlier used for foraging and hunting by the [...]
Ontario Sightseeing Ontario - a magical city Ontario has something in store for all the vacationers that can give them a mesmerizing experience. Historically well known as “Sportsman’s paradise”, Ontario has ultra modern amenities for various [...]
Ontario Nightlife Ontario has been noted for its unmatchable nightlife throughout the world. When the sun sets, the city starts radiating with an overweening vigor. All the travelers who have a taste for nightlife swear that Ontario is a city where life starts [...]