Cheap Flight Tickets from San Francisco (SFO) to Ontario (ONT), Starting at $145

Good to Know: Cheapest and Fastest SFO - ONT Flights

Useful information for finding best airline tickets from San Francisco International to Ontario International on your next trip.

Cheapest Round Trip Flight

$145

WN Southwest Airlines • 1 stop • 8h 25m

Aug 15 – Aug 16

The cheapest round trip flight from San Francisco to Ontario (SFO-ONT-SFO) is currently $145

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Cheapest One way Flight

$396

WN Southwest Airlines • 1 stop • 8h 50m

Jul 12

The cheapest one way flight from San Francisco to Ontario (SFO-ONT) is currently $396

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Fastest Flight

7h 5m

The fastest nonstop flight from San Francisco to Ontario (SFO-ONT) takes 7h 5m

Top Airlines Flying from San Francisco to Ontario

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from San Francisco (SFO) to Ontario (ONT)

Compare and book low fare round-trip air tickets from San Francisco to Ontario. Ideal for travelers with confirmed return itineraries.

Aug 15 - Aug 16, Economy
WN
San Francisco → Ontario
8h 25m
6:10 AM - 11:15 AM • 1 stop
WN
San Francisco → Ontario
5h 45m
8:00 AM - 11:45 AM • 1 stop
$145
Southwest Airlines
Jul 23 - Jul 26, Economy
WN
San Francisco → Ontario
8h 30m
5:00 AM - 10:10 AM • 1 stop
WN
San Francisco → Ontario
5h 50m
9:55 AM - 1:45 PM • 1 stop
$467
Southwest Airlines
Jul 23 - Jul 26, Economy
WN
San Francisco → Ontario
7h 5m
3:45 PM - 8:10 PM • 1 stop
WN
San Francisco → Ontario
5h 50m
9:55 AM - 1:45 PM • 1 stop
$467
Southwest Airlines
Jul 23 - Jul 26, Economy
WN
San Francisco → Ontario
9h 10m
5:30 AM - 11:20 AM • 1 stop
WN
San Francisco → Ontario
7h 15m
12:55 PM - 5:30 PM • 1 stop
$467
Southwest Airlines
Jul 23 - Jul 26, Economy
WN
San Francisco → Ontario
9h
9:45 AM - 3:25 PM • 1 stop
WN
San Francisco → Ontario
5h 50m
9:55 AM - 1:45 PM • 1 stop
$467
Southwest Airlines
Jul 23 - Jul 26, Economy
WN
San Francisco → Ontario
8h 45m
6:45 PM - 12:10 AM • 1 stop
WN
San Francisco → Ontario
5h 55m
5:00 PM - 8:55 PM • 1 stop
$467
Southwest Airlines

Fly from San Francisco to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from San Francisco to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on San Francisco to Ontario Flights

What are the airports in San Francisco?
SFO
What’s the most popular airline flying from SFO to ONT?
The most popular airline flying from San Francisco to Ontario are
Can I fly from SFO to ONT non-stop?
NO
Which airlines fly nonstop between San Francisco and Ontario?
The non-stop flights between San Francisco and Ontario are .
What’s the earliest departure time from SFO to ONT Airport?
The earliest flight leaves SFO at 5:00 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my San Francisco to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from SFO to ONT?
Read the fare rules of the San Francisco to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from San Francisco and Ontario?
operate flights between San Francisco and Ontario
How long does a flight from San Francisco to Ontario take?
It takes approximately 1 hour to fly non-stop from SFO to ONT, which is 363.46 miles by air.
Which airlines provide the cheapest flights from San Francisco (SFO) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from SFO were found on AS : USD 637
Do I need a passport to fly between SFO and ONT?
No
What’s the latest departure time from SFO to ONT ?
The last flight leaves SFO at 6:45 pm

San Francisco (SFO) to Ontario (ONT): Airport Information

Origin Airport San Francisco International , San Francisco, US
Destination Airport Ontario International , Ontario, US
Distance 363 miles

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