Cheap Flight Tickets from San Francisco (SFO) to Ontario (ONT), Starting at $101

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

$179

WN Southwest Airlines • 1 stop • 12h 35m

Nov 02 – Nov 02

The cheapest round trip flight from San Francisco to Ontario (SFO-ONT-SFO) is currently $179

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Cheapest One way Flight

$417

UA United Airlines • nonstop • 2h 5m

Nov 03

The cheapest one way flight from San Francisco to Ontario (SFO-ONT) is currently $417

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Cheapest Direct Flight

$101

WN Southwest Airlines • nonstop • 2h 5m

Oct 31

The cheapest nonstop flight from San Francisco to Ontario (SFO-ONT) is currently $101

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Fastest Flight

2h

The fastest nonstop flight from San Francisco to Ontario (SFO-ONT) takes 2h

Top Airlines Flying from San Francisco to Ontario

Delta Airline, DL

Delta Airlines

Southwest Airlines-WN

Southwest Airlines

United Airlines, UA

United Airlines

Alaska Airlines -AS

Alaska Airlines

American Airlines, AA

American 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.

Nov 02 - Nov 02, Economy
WN
San Francisco → Ontario
12h 35m
5:05 AM - 1:00 PM • 1 stop
WN
San Francisco → Ontario
12h 20m
4:00 PM - 11:40 PM • 1 stop
$179
Southwest Airlines
Nov 02 - Nov 02, Economy
WN
San Francisco → Ontario
16h 50m
5:15 AM - 3:25 PM • 1 stop
WN
San Francisco → Ontario
8h 35m
6:50 PM - 12:05 AM • 1 stop
$179
Southwest Airlines
Nov 02 - Nov 02, Economy
UA
San Francisco → Ontario
2h 9m
11:00 AM - 12:29 PM • nonstop
UA
San Francisco → Ontario
2h 10m
3:05 PM - 4:35 PM • nonstop
$199
United Airlines
Nov 02 - Nov 02, Economy
AS
San Francisco → Ontario
12h 18m
10:39 AM - 6:17 PM • 1 stop
AS
San Francisco → Ontario
2h 7m
10:00 PM - 11:27 PM • nonstop
$216
Alaska Airlines
Nov 02 - Nov 02, Economy
AS
San Francisco → Ontario
10h 4m
12:13 PM - 6:17 PM • 1 stop
AS
San Francisco → Ontario
2h 7m
10:00 PM - 11:27 PM • nonstop
$216
Alaska Airlines
Nov 02 - Dec 02, Economy
DL
San Francisco → Ontario
7h 39m
5:13 PM - 10:12 PM • 1 stop
DL
San Francisco → Ontario
8h 50m
5:04 PM - 10:34 PM • 1 stop
$4382
Delta 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?
Yes, you can fly SFO to ONT non-stop on
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 5:05 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 892
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 11:30 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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