Cheap flights from San Diego to Ontario (SAN - ONT) from $172

Currently, October is the cheapest month in which you can book a flight from San Diego to Ontario (average of $237). Flying from San Diego to Ontario in June is currently the most expensive (average of $341). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

• Can I find flights from San Diego to Ontario for under $400 on Cheapflights?

  Yes, there are multiple flights from San Diego to Ontario for under $400. The cheapest flight booked recently is on United Airlines for just $386, but on average you can expect to pay $613.

• Are there last-minute flights available from San Diego to Ontario for under $900?

  There are currently 4+ open flights from San Diego to Ontario within the next 7 days for less than $900.

• What are the cheapest airlines flying from San Diego to Ontario round-trip?

  Our cheapest airline available from San Diego to Ontario is United Airlines. Our recent data shows that you can find tickets from as low as $386 on this airline. An additional option worth looking into is American Airlines, starting at $415.

• What are the cheapest airlines to fly from San Diego to Ontario one-way?

  One-way options have recently been found by users for as low as $172 on Alaska Airlines. Other airlines that offer cheap prices include United Airlines from $204 and American Airlines from $555 one-way.

• What does SAN to ONT mean?

  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.

• Can I find deals for flights from San Diego to Ontario that include extra baggage allowance?

  The amount of baggage you can bring on your San Diego to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

• Can I find deals on flights from San Diego to Ontario with specific airlines?

  Yes, Cheapflights allows you to browse and filter San Diego to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

• Can I find deals for flights from San Diego to Ontario that include hotel bookings?

  Yes. In addition to deals on San Diego to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

• How can I find direct flights from San Diego to Ontario?

  After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Ontario.

• Can I find deals for business class flights from San Diego to Ontario?

  Yes. Cheapflights offers flight deals from San Diego to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

• Can I find deals for flights from San Diego to Ontario that allow pets onboard?

  Many airlines flying from San Diego to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

• Can I find deals on last-minute flights from San Diego to Ontario?

  Yes, you can often find last-minute deals on San Diego to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

• How recently were the San Diego to Ontario flight deals updated?

  The San Diego to Ontario flight deals you see on this page were last updated on 5/3.