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

Search stays

Wander Wisely with exceptional service, 24/7 support

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

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

Amazing SFO to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $43 round trip and $29 one way. Prices and availability subject to change. Additional terms may apply.

Tue, May 21 - Tue, May 21
SFO
San Francisco
ONT
Ontario
$43 Roundtrip, found 6 days ago
$43
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Tue, May 21 from San Francisco to Ontario, returning Tue, May 21, priced at $43 found 6 days ago
Sat, May 11 - Tue, May 14
SFO
San Francisco
ONT
Ontario
$48 Roundtrip, found 1 day ago
$48
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, May 11 from San Francisco to Ontario, returning Tue, May 14, priced at $48 found 1 day ago
Sat, May 18 - Sat, May 18
SFO
San Francisco
ONT
Ontario
$53 Roundtrip, found 18 hours ago
$53
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Sat, May 18 from San Francisco to Ontario, returning Sat, May 18, priced at $53 found 18 hours ago
Sat, May 18 - Tue, May 21
SFO
San Francisco
ONT
Ontario
$58 Roundtrip, just found
$58
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 18 from San Francisco to Ontario, returning Tue, May 21, priced at $58 just found
Wed, May 15 - Sat, May 18
SFO
San Francisco
ONT
Ontario
$62 Roundtrip, just found
$62
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, May 15 from San Francisco to Ontario, returning Sat, May 18, priced at $62 just found
Sat, May 18 - Tue, May 28
SFO
San Francisco
ONT
Ontario
$63 Roundtrip, just found
$63
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 18 from San Francisco to Ontario, returning Tue, May 28, priced at $63 just found
Wed, May 15 - Sat, Jun 1
SFO
San Francisco
ONT
Ontario
$67 Roundtrip, found 1 day ago
$67
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, May 15 from San Francisco to Ontario, returning Sat, Jun 1, priced at $67 found 1 day ago
Thu, May 16 - Tue, May 21
SFO
San Francisco
ONT
Ontario
$68 Roundtrip, just found
$68
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, May 16 from San Francisco to Ontario, returning Tue, May 21, priced at $68 just found
Thu, May 16 - Sat, May 18
SFO
San Francisco
ONT
Ontario
$72 Roundtrip, just found
$72
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, May 16 from San Francisco to Ontario, returning Sat, May 18, priced at $72 just found
Thu, May 16 - Tue, May 28
SFO
San Francisco
ONT
Ontario
$73 Roundtrip, just found
$73
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, May 16 from San Francisco to Ontario, returning Tue, May 28, priced at $73 just found

Flight Schedule for SFO to ONT

CarrierFlightDepart SFOArrive ONTSat
4/20		Sun
4/21		Mon
4/22		Tue
4/23		Wed
4/24		Thu
4/25		Fri
4/26		Stops
UA574008:25 am10:02 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
F9416008:27 pm09:57 pmCheck Fare
-
-
-
-
-
-
0 Stops
UA21609:30 pm11:04 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
F9267810:10 am11:39 am
-
Check FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops

Best Los Angeles - Ontario Intl. Flight and Hotel Packages

Los Angeles - Ontario Intl. flight + hotel packages - economy flights

Hotel Seville

Hotel Seville

2 out of 5
Save 100% on your flight
per person
Jun 1 - Jun 5
Roundtrip flight included
San Francisco (SFO) to Ontario (ONT)
La Quinta Inn & Suites by Wyndham Ontario Airport

La Quinta Inn & Suites by Wyndham Ontario Airport

3 out of 5
Save 100% on your flight
per person
Jun 1 - Jun 5
Roundtrip flight included
San Francisco (SFO) to Ontario (ONT)
Azure Hotel & Suites, Trademark Collection by Wyndham

Azure Hotel & Suites, Trademark Collection by Wyndham

3 out of 5
Save 100% on your flight
per person
Jun 1 - Jun 5
Roundtrip flight included
San Francisco (SFO) to Ontario (ONT)
Baymont by Wyndham Ontario

Baymont by Wyndham Ontario

2.5 out of 5
Save 100% on your flight
per person
Jun 1 - Jun 5
Roundtrip flight included
San Francisco (SFO) to Ontario (ONT)
Ramada by Wyndham Ontario

Ramada by Wyndham Ontario

2 out of 5
Save 100% on your flight
per person
Jun 1 - Jun 5
Roundtrip flight included
San Francisco (SFO) to Ontario (ONT)
Don't see what you're looking for?
See all available trips from San Francisco Intl. to Los Angeles - Ontario Intl.
View all trips
Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Are there direct flights from SFO to Los Angeles - Ontario Intl. Airport (ONT)?
Sometimes, a trip is all about the journey; other times, the magic is in the destination. But if you just want to get to where you’re going fast, multiple airlines operate direct flights from SFO to ONT, including United Airlines and Frontier Airlines.
How long is the flight from SFO to Ontario Airport?
Flying from San Francisco to Ontario is a breeze, with travel taking a mere 1 hour and 25 minutes all up. With such a short journey ahead of you, you’ll hit the ground feeling as fresh as when you boarded and ready to enjoy the next part of your getaway.
What is the flight distance from SFO to Los Angeles - Ontario Intl. Airport (ONT)?
The flight distance from SFO to ONT is only 360 mi. You’ll be disembarking the plane at your destination in no time.
What airlines fly from SFO to ONT?
You can take your pick from several airlines that fly direct between San Francisco and Ontario. United Airlines (UA) is one of the most popular. This carrier operates approximately 139 flights every month. Another good option is Frontier Airlines (F9), which has 17 flights every month. The more airlines you take into account, the more likely you are to walk away with a fantastic deal.
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.

 

Traveling From
San Francisco Intl.
Traveling To
Los Angeles - Ontario Intl.
Shortest Flight Time
1 hours 29 mins
Earliest Departure Time
8:25AM PDT
Latest Departure Time
9:30PM PDT
Lowest Flight Price
$43

Route Info

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


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


Airlines & Aircraft Used on SFO to ONT Flight Routes


Airline Carrier
Aircraft
United Airlines
Embraer 190

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

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 San Francisco SFO to Ontario ONT at the right price  

Airfares to Ontario ONT from San Francisco SFO currently cost between $43 and $73. 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 San Francisco SFO to Ontario ONT 

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 San Francisco SFO to Ontario ONT on Travelocity starting at $29. Prices and availability subject to change. Additional terms may apply. 

 

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

Get to Ontario faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to ONT from SFO to take around 1 hour(s) 29 min(s).  

 

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

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to ONT from SFO. 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 San Francisco SFO to Ontario ONT today 

If you’re flexible about when you travel, May is usually the cheapest month to fly from San Francisco SFO to Ontario ONT. 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 Ontario ONT from San Francisco SFO 

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

 

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