Cheap Flight Tickets from Ontario (ONT) to San Diego (SAN), Starting at $167

Good to Know: Cheapest and Fastest ONT - SAN Flights

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

Cheapest Round Trip Flight

$893

AS Alaska Airlines • 1 stop • 25h 38m

Aug 28 – Aug 30

The cheapest round trip flight from Ontario to San Diego (ONT-SAN-ONT) is currently $893

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Cheapest One way Flight

$167

WN Southwest Airlines • 1 stop • 30h 40m

Sep 15

The cheapest one way flight from Ontario to San Diego (ONT-SAN) is currently $167

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Cheapest Direct Flight

$332

UA United Airlines • nonstop • 56m

Aug 28

The cheapest nonstop flight from Ontario to San Diego (ONT-SAN) is currently $332

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Fastest Flight

56m

The fastest nonstop flight from Ontario to San Diego (ONT-SAN) takes 56m

Top Airlines Flying from Ontario to San Diego

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Southwest Airlines-WN

Southwest Airlines

Latest Flight Deals from Ontario (ONT) to San Diego (SAN)

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

Aug 28 - Aug 30, Economy
AS
Ontario → San Diego
25h 38m
4:27 PM - 8:05 AM • 1 stop
AS
Ontario → San Diego
12h 30m
7:57 AM - 3:47 PM • 1 stop
$893
Alaska Airlines
Aug 28 - Aug 30, Economy
UA
Ontario → San Diego
12h 16m
6:08 AM - 1:44 PM • 1 stop
UA
Ontario → San Diego
7h 22m
7:30 AM - 12:12 PM • 1 stop
$942
United Airlines
Aug 28 - Aug 30, Economy
AS
Ontario → San Diego
30h 45m
7:59 PM - 2:44 PM • 1 stop
AS
Ontario → San Diego
12h 30m
7:57 AM - 3:47 PM • 1 stop
$968
Alaska Airlines
Aug 28 - Aug 30, Economy
AS
Ontario → San Diego
12h 4m
6:02 AM - 1:26 PM • 1 stop
AS
Ontario → San Diego
12h 30m
7:57 AM - 3:47 PM • 1 stop
$1028
Alaska Airlines
Aug 28 - Aug 30, Economy
AS
Ontario → San Diego
12h 18m
3:07 PM - 10:45 PM • 1 stop
AS
Ontario → San Diego
12h 30m
7:57 AM - 3:47 PM • 1 stop
$1028
Alaska Airlines
Aug 28 - Aug 30, Economy
AS
Ontario → San Diego
10h 49m
10:47 AM - 5:36 PM • 1 stop
AS
Ontario → San Diego
12h 30m
7:57 AM - 3:47 PM • 1 stop
$1045
Alaska Airlines

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

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

FAQs on Ontario to San Diego Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to SAN?
The most popular airline flying from Ontario to San Diego are
Can I fly from ONT to SAN non-stop?
Yes, you can fly ONT to SAN non-stop on
Which airlines fly nonstop between Ontario and San Diego?
The non-stop flights between Ontario and San Diego are .
What’s the earliest departure time from ONT to SAN Airport?
The earliest flight leaves ONT at 6:02 am and lands in SAN - San Diego International
What are the airports in San Diego?
SAN
Can I make changes to my Ontario to San Diego 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 ONT to SAN?
Read the fare rules of the Ontario to San Diego 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 Ontario and San Diego?
operate flights between Ontario and San Diego
How long does a flight from Ontario to San Diego take?
It takes approximately 1 hour to fly non-stop from ONT to SAN, which is 94.18 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to San Diego (SAN) ?
In the past couple of days, the cheapest tickets to SAN from ONT were found on WN : USD 167
Do I need a passport to fly between ONT and SAN?
No
What’s the latest departure time from ONT to SAN ?
The last flight leaves ONT at 9:59 pm

Ontario (ONT) to San Diego (SAN): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport San Diego International , San Diego, US
Distance 94 miles

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