Find Cheap Flights from Ontario to San Diego (ONT - SAN)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Ontario to San Diego

(Round-trip)
Depart: Sun Nov 19 2017 Return: Thu Nov 23 2017 Trip spans 5 days
United
United
ONT
12:00a
SAN
4:59p
16h 59m
1 stop
SAN
12:00a
ONT
10:16a
10h 16m
1 stop
Depart: Tue Dec 5 2017 Return: Sat Dec 9 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
ONT
12:00a
SAN
8:22a
8h 22m
1 stop
SAN
12:00a
ONT
1:43p
13h 43m
1 stop
Depart: Thu Dec 14 2017 Return: Sun Jan 28 2018 Trip spans 46 days
United
United
ONT
12:00a
SAN
4:39p
16h 39m
1 stop
SAN
12:00a
ONT
11:33p
23h 33m
1 stop
Depart: Sat Oct 28 2017 Return: Thu Nov 23 2017 Trip spans 27 days
Alaska Airlines
Alaska Airlines
ONT
12:00a
SAN
10:51a
10h 51m
1 stop
SAN
12:00a
ONT
12:09p
12h 09m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Ontario
$270
Destination

San Diego
$270