Cheap Flight Tickets from San Francisco (SFO) to Ontario (ONT), Starting at $149

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

$286

AS Alaska Airlines • nonstop • 2h 9m

Jun 25 – Jun 28

The cheapest round trip flight from San Francisco to Ontario (SFO-ONT-SFO) is currently $286

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Cheapest One way Flight

$316

AS Alaska Airlines • 1 stop • 10h 6m

Jun 29

The cheapest one way flight from San Francisco to Ontario (SFO-ONT) is currently $316

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Cheapest Direct Flight

$149

DL Delta Airlines • nonstop •

Jun 25

The cheapest nonstop flight from San Francisco to Ontario (SFO-ONT) is currently $149

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Fastest Flight

2h 9m

The fastest nonstop flight from San Francisco to Ontario (SFO-ONT) takes 2h 9m

Top Airlines Flying from San Francisco to Ontario

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Sun Country Airlines (SY)

Sun Country Airlines

American Airlines, AA

American 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.

Jun 25 - Jun 28, Economy
AS
San Francisco → Ontario
2h 9m
10:15 AM - 11:44 AM • nonstop
UA
San Francisco → Ontario
2h 16m
7:25 AM - 9:01 AM • nonstop
$286
Alaska Airlines
Jun 25 - Jun 28, Economy
UA
San Francisco → Ontario
2h 22m
10:35 PM - 12:17 AM • nonstop
AS
San Francisco → Ontario
2h 2m
6:00 AM - 7:22 AM • nonstop
$293
United Airlines
Jun 25 - Jun 28, Economy
UA
San Francisco → Ontario
2h 19m
6:00 AM - 7:39 AM • nonstop
WN
San Francisco → Ontario
10h 10m
4:15 PM - 10:25 PM • 1 stop
$379
United Airlines
Jun 25 - Jun 28, Economy
WN
San Francisco → Ontario
13h 40m
3:45 PM - 12:05 AM • 2 stops
WN
San Francisco → Ontario
2h 5m
6:10 AM - 7:35 AM • nonstop
$430
Southwest Airlines
Jun 25 - Jun 28, Economy
F9
San Francisco → Ontario
18h 53m
12:38 PM - 12:11 AM • 1 stop
F9
San Francisco → Ontario
13h 32m
10:10 AM - 6:22 PM • 1 stop
$455
Frontier Airlines
Jun 25 - Jun 28, Economy
AS
San Francisco → Ontario
13h 29m
7:27 AM - 3:36 PM • 1 stop
AS
San Francisco → Ontario
20h 42m
5:54 AM - 6:36 PM • 1 stop
$1402
Alaska 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 5:10 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 318
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 9:4300 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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