$29 Cheap flights from Los Angeles - Ontario Intl. to San Francisco Intl. (ONT to SFO)

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Find The Best Dates To Fly from Los Angeles - Ontario Intl. to San Francisco Intl.

Compare Flight Prices from Ontario to San Francisco

Affordable Airfare Tickets from ONT to SFO Airport

The cheapest flights to San Francisco Intl. found within the past 7 days were $52 round trip and $29 one way. Prices and availability subject to change. Additional terms may apply.

Wed, May 7 - Wed, May 7
ONT
Ontario
SFO
San Francisco
$52 Roundtrip, found 1 day ago
$52
Roundtrip
found 1 day ago
Select United flight, departing Wed, May 7 from Ontario to San Francisco, returning Wed, May 7, priced at $52 found 1 day ago
Sat, May 31 - Mon, Jun 2
ONT
Ontario
SFO
San Francisco
$57 Roundtrip, found 1 hour ago
$57
Roundtrip
found 1 hour ago
Select United flight, departing Sat, May 31 from Ontario to San Francisco, returning Mon, Jun 2, priced at $57 found 1 hour ago
Sat, May 10 - Sat, May 10
ONT
Ontario
SFO
San Francisco
$63 Roundtrip, found 17 hours ago
$63
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Sat, May 10 from Ontario to San Francisco, returning Sat, May 10, priced at $63 found 17 hours ago
Sat, May 3 - Sat, May 3
ONT
Ontario
SFO
San Francisco
$64 Roundtrip, found 18 hours ago
$64
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Sat, May 3 from Ontario to San Francisco, returning Sat, May 3, priced at $64 found 18 hours ago
Sat, May 31 - Mon, Jun 2
ONT
Ontario
SFO
San Francisco
$68 Roundtrip, found 1 hour ago
$68
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, May 31 from Ontario to San Francisco, returning Mon, Jun 2, priced at $68 found 1 hour ago
Thu, May 1 - Mon, May 5
ONT
Ontario
SFO
San Francisco
$69 Roundtrip, just found
$69
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, May 1 from Ontario to San Francisco, returning Mon, May 5, priced at $69 just found
Sat, May 31 - Mon, Jun 2
ONT
Ontario
SFO
San Francisco
$73 Roundtrip, found 1 hour ago
$73
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, May 31 from Ontario to San Francisco, returning Mon, Jun 2, priced at $73 found 1 hour ago
Sat, May 17 - Sat, May 24
ONT
Ontario
SFO
San Francisco
$78 Roundtrip, just found
$78
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 17 from Ontario to San Francisco, returning Sat, May 24, priced at $78 just found
Sat, May 24 - Mon, May 26
ONT
Ontario
SFO
San Francisco
$79 Roundtrip, found 1 hour ago
$79
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, May 24 from Ontario to San Francisco, returning Mon, May 26, priced at $79 found 1 hour ago
Sat, Apr 26 - Thu, May 1
ONT
Ontario
SFO
San Francisco
$88 Roundtrip, found 5 days ago
$88
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Apr 26 from Ontario to San Francisco, returning Thu, May 1, priced at $88 found 5 days ago

San Francisco Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
The Andrews Hotel

The Andrews Hotel

3 out of 5
Save 100% on your flight
per person
May 24 - May 26
found 1 day ago
Roundtrip flight included
Ontario (ONT) to San Francisco (SFO)
SOMA Park Inn – Civic Center

SOMA Park Inn – Civic Center

2 out of 5
Save 100% on your flight
per person
May 23 - May 30
found 1 day ago
Roundtrip flight included
Ontario (ONT) to San Francisco (SFO)
Hyatt Regency Sonoma Wine Country

Hyatt Regency Sonoma Wine Country

4 out of 5
Save 100% on your flight
per person
May 23 - May 26
found 11 hours ago
Roundtrip flight included
Ontario (ONT) to San Francisco (SFO)
Bay Landing San Francisco Airport Hotel

Bay Landing San Francisco Airport Hotel

3 out of 5
Save 100% on your flight
per person
May 24 - May 26
found 1 day ago
Roundtrip flight included
Ontario (ONT) to San Francisco (SFO)
Oakland Airport Executive Hotel

Oakland Airport Executive Hotel

3 out of 5
Save 100% on your flight
per person
May 23 - May 30
found 1 day ago
Roundtrip flight included
Ontario (ONT) to Oakland (OAK)
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Frequently asked questions

Can I catch a flight from ONT to San Francisco Airport right now?
Ensure you go to our Covid-19 Travel Advisor to learn if there are any present quarantine requirements or travel advice reports in place in SFO when flying from Ontario Airport.
Are there direct flights from Ontario Airport to San Francisco Intl. Airport (SFO)?
Multiple airlines operate flights straight from ONT to San Francisco Airport. Among these are United Airlines and Frontier Airlines — look into them if you’d like to touch down at San Francisco with minimal fuss.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to San Francisco Intl. Airport (SFO), please visit our Customer Service Portal.
How long is the flight from ONT to San Francisco Airport?
The journey from Ontario to San Francisco should be a walk in the park, with flights taking only 1 hour and 27 minutes on average. With such a quick journey ahead of you, you’ll hit the tarmac feeling as fresh as when you boarded and ready to enjoy the next part of your getaway.
What is the flight distance from Los Angeles - Ontario Intl. Airport (ONT) to San Francisco Intl. Airport (SFO)?
There’s a flight distance of 360 mi between ONT and San Francisco Airport. Make the most of your short journey to pencil down all the popular sightseeing places you plan to visit and how you’re going to get there. A comprehensive itinerary is key to having a fantastic vacation.
What airlines fly from Los Angeles - Ontario Intl. Airport (ONT) to SFO?
You’ll find several airlines offering direct flights between Ontario and San Francisco. United Airlines (UA) is one of the most liked. This carrier operates approximately 143 flights every month. You’ll want to also check out the deals available through Frontier Airlines (F9). Another leading carrier, it operates 17 flights each month on the Ontario to San Francisco route. Be sure to compare the two to find your ideal fare.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with United Airlines, Alaska Airlines or Delta you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Flight information from Ontario to San Francisco

 

Traveling From
Los Angeles - Ontario Intl.
Traveling To
San Francisco Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$52

Route Info

Flight path for flights from LA/Ontario International Airport to San Francisco International Airport.


Origin:
ONT - LA/Ontario International Airport
Destination:
SFO - San Francisco International Airport
Distance:
364.00 miles

Airline carriers and aircraft used on flights from ONT to SFO


Airline Carrier
Aircraft
United Airlines
Boeing 737-800 (winglets) pax

Discover our best flights from Ontario ONT to San Francisco SFO. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Ontario ONT to San Francisco SFO at the right price  

Airfares to San Francisco SFO from Ontario ONT currently cost between $52 and $88. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Ontario ONT to San Francisco SFO 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Ontario ONT to San Francisco SFO on Travelocity starting at $29. Prices and availability subject to change. Additional terms may apply. 

 

Get to San Francisco SFO from Ontario ONT quicker with direct flights. 

Get to San Francisco faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to SFO from ONT to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Ontario ONT to San Francisco SFO

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to SFO from ONT. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Ontario ONT to San Francisco SFO today 

If you’re flexible about when you travel, May is usually the cheapest month to fly from Ontario ONT to San Francisco SFO. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to San Francisco SFO from Ontario ONT 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to SFO from ONT have this option.  

 

Travel with confidence when you book flights to San Francisco SFO from Ontario ONT with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.