Cheap flights from San Diego to Ontario from C$ 103
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Ontario departing on 6/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Early arrival? Instantly customize your resultsTrusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from San Diego to Ontario
Cheap round-trip flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
Delta flights from San Diego to Region of Ontario
Our best Delta deals on San Diego to Region of Ontario flight tickets
Porter Airlines flights from San Diego to Region of Ontario
Our best Porter Airlines deals on San Diego to Region of Ontario flight tickets
See travel insights to Ontario from
How to get the cheapest flight ticket from San Diego to Region of Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Region of Ontario?
In general, January is the cheapest month to fly from San Diego to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 370. If you are unable to visit Region of Ontario during the month of January, then departing from San Diego during the month March is also very affordable. Most momondo users find prices during this month for around C$ 392.
What is the cheapest day to depart on your flight to Region of Ontario?
The cheapest day to depart from San Diego to Region of Ontario is on a Thursday. Travellers who choose to depart for Region of Ontario on a Thursday will often find tickets for as low as C$ 326. The most expensive day to fly to Region of Ontario is Saturday, with ticket prices averaging around C$ 630.
What is the cheapest time of day to depart on your flight to Region of Ontario?
Our most recent data shows that the best time of day to fly to Region of Ontario is in the afternoon. Flights from San Diego to Region of Ontario during this time can be as low as C$ 0. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 569 on average. Flights to Region of Ontario from San Diego in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest San Diego to Ontario flight route?
Fly from San Diego to Toronto Pearson Intl for the best San Diego - Ontario flight prices
How far in advance should I book a flight to Region of Ontario?
You are more likely to see cheaper flights to Region of Ontario from San Diego when booking 18 weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 589 when searching 18 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from San Diego for as low as C$ 409 on momondo.
What cabin class options are available on San Diego to Ontario flights?
There are 3 cabin classes available to choose from on San Diego to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from San Diego to Ontario?
WestJet, Porter Airlines, and Air Canada are the most popular carriers operating from San Diego to Ontario
Which airlines fly to Region of Ontario?
Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Region of Ontario from San Diego according to our data. Air Canada is the first choice among our users, with 55% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 3 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Diego to Region of Ontario on average per day?
As of April 2025, there are 3 flights per day flying from San Diego to Region of Ontario. The most common time of day flights depart is 12:00p.m., with 100% of flights taking off in the afternoon.
How many flights depart from San Diego to Region of Ontario on average per week?
As of April 2025, 22 flights take off from San Diego and land in Region of Ontario each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.
Cheap San Diego to Region of Ontario flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Diego to Region of Ontario
Best price found | C$ 103 |
|---|---|
Fastest flight time | 4h 45m |
Direct flights | Mon, Tue, Wed, Thu, Sat and Sun |
Airports in Region of Ontario | 5 airports |
When did momondo last update prices for flights from San Diego Airport to Ontario?
Prices for flights from San Diego Airport to Ontario were last updated today.
How many operators does momondo search for flights from San Diego Airport to Ontario?
The number of operators available for flights from San Diego Airport to Ontario is 3 as of April 2025.
How old do you have to be to fly from San Diego Airport to Ontario?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Diego Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Diego to Region of Ontario?
Based on momondo bookings for flights between San Diego and Region of Ontario, the leading plane model is Embraer 195 E2, making up 52.52% of the total bookings. Other popular models include Airbus A220-300 with 34.18%, Boeing 737 MAX 8 with 8.49%, and Airbus A319 with 0.83%.
Best airlines flying from San Diego to Region of Ontario
Compare and see reviews for airlines that fly from San Diego to Region of Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 220 | Free Cancellation | Rating 7.4 8,667 reviews | |||
| PriceFrom C$ 290 | Free Cancellation | Rating 8.0 281 reviews | |||
| PriceFrom C$ 328 | Free Cancellation | Rating 7.0 9,142 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from San Diego to Ontario?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to Ontario. momondo saves you time and could save you money on your trip.
Can I find flights from San Diego to Ontario with flexible booking policies on momondo?
Flights from San Diego to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from San Diego to Ontario?
momondo provides multiple filters to help you find the best flight to Ontario from San Diego. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from San Diego to Ontario right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Ontario from San Diego. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.