$155 Find Cheap Flights from Ontario to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Diego departing on 2/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$276
Overall average: $436
Air Canada
Tue 3/10Wed 3/11
YOW - SAN • 1 stop
Cheapest non-stop
$316
Typical prices: $186-$424
Air Canada
Sat 1/17Fri 1/23
YYZ - SAN • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Ontario to San Diego

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to San Diego

Tue, Mar 10 - Wed, Mar 11
Air Canada Logo
7:45 am - 5:24 pm
YOW
-
SAN
12h 39m1 stop
Air Canada Logo
6:05 pm - 6:43 am
SAN
-
YOW
9h 38m1 stop
$276Air Canada
Wed, Apr 1 - Wed, Apr 8
United Airlines Logo
10:35 am - 7:57 pm
YOW
-
SAN
12h 22m2 stops
United Airlines Logo
8:40 pm - 1:45 pm
SAN
-
YOW
14h 05m2 stops
$281United Airlines
Mon, Mar 9 - Sun, Mar 15
Air Canada Logo
6:00 am - 11:53 am
YOW
-
SAN
8h 53m1 stop
Air Canada Logo
6:05 pm - 6:43 am
SAN
-
YOW
9h 38m1 stop
$282Air Canada
Thu, May 21 - Mon, May 25
WestJet Logo
6:00 am - 1:20 pm
YHM
-
SAN
10h 20m1 stop
WestJet Logo
1:05 pm - 12:40 am
SAN
-
YHM
32h 35m2 stops
$296WestJet
Tue, Mar 10 - Fri, Mar 13
WestJet Logo
5:45 pm - 11:47 am
YOW
-
SAN
21h 02m1 stop
WestJet Logo
12:35 pm - 12:40 am
SAN
-
YOW
9h 05m1 stop
$308WestJet
Mon, Mar 9 - Fri, Mar 13
Multiple Airlines Logo
5:40 am - 1:13 pm
YOW
-
SAN
34h 33m2 stops
Multiple Airlines Logo
12:35 pm - 12:40 am
SAN
-
YOW
9h 05m1 stop
$309Multiple Airlines
Sun, Feb 15 - Thu, Apr 23
Delta Logo
5:15 pm - 11:02 pm
YYZ
-
SAN
8h 47m1 stop
Delta Logo
9:40 pm - 12:16 pm
SAN
-
YYZ
11h 36m1 stop
$311Delta
Tue, Jan 13 - Sat, Jan 17
Multiple Airlines Logo
9:50 am - 8:22 pm
YYZ
-
SAN
13h 32m1 stop
Multiple Airlines Logo
2:57 pm - 6:13 am
SAN
-
YYZ
12h 16m2 stops
$312Multiple Airlines
Sun, Mar 8 - Thu, Mar 12
Delta Logo
4:45 pm - 10:49 pm
YUL
-
SAN
9h 04m1 stop
Delta Logo
6:15 am - 11:11 pm
SAN
-
YUL
13h 56m2 stops
$378Delta
Tue, Jan 13 - Tue, Jan 20
American Airlines Logo
7:30 am - 6:31 pm
YUL
-
SAN
14h 01m2 stops
American Airlines Logo
11:30 am - 12:24 pm
SAN
-
YUL
21h 54m1 stop
$383American Airlines
Useful Info

Good to know

Low seasonNovember
Cheapest flight$155
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Ottawa to San Diego

FAQs for booking flights from Ontario to San Diego

  • How does KAYAK find such low prices on flights from Ontario to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Julian
Lemon Grove
National City
Borrego Springs
Poway
Alpine
Santee

Everything you need to know for your flight to San Diego

Information on the airport you'll fly into in San Diego

San Diego (SAN)