Cheap flights from San Diego to Ontario (SAN - ONT) from $44

Departing on a Wednesday is a good option for securing a great price. You can expect to save up to 177% when planning your travel around this day of the week.

Find a great deal and save up to 58% by booking at least 26 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Diego to Ontario within the next two weeks, with the cheapest ticket starting at $179.

Our data shows that January tends to be the cheapest month to fly to Ontario from San Diego. Users have commonly found prices around $177 for the month, but tickets can be as low as $41. Due to multiple factors, prepare for potentially higher prices in December.

It’s optimal to fly from San Diego to Ontario in the afternoon. By choosing this option you can save up to 83% on the cost of your flight, compared to a flight in the morning.

Yes, there are multiple flights from San Diego to Ontario for under $200. The cheapest flight booked recently is on Multiple Airlines for just $124, but on average you can expect to pay $460.

There are currently 7+ open flights from San Diego to Ontario within the next 7 days for less than $700.

Our cheapest airline available from San Diego to Ontario is Alaska Airlines. Our recent data shows that you can find tickets from as low as $252 on this airline. An additional option worth looking into is American Airlines, starting at $438. Alaska Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.

One-way options have recently been found by users for as low as $44 on Frontier. Other airlines that offer cheap prices include United Airlines from $122 and Delta from $133 one-way.

Looking for the cheapest flight from San Diego to Ontario? While on average our users pay $845, our data indicates the cheapest price to be $120. The most popular route (San Diego - Ontario), is priced around $117.

San Diego Airport is SAN and Ontario Airport is ONT. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.