$49 Find Cheap Southwest Flights from Ontario to San Jose

When to Book Flights with Southwest from Ontario to San Jose

• Is Southwest the cheapest airline to fly with from Ontario to San Jose?

  With an average price of $259 return, Southwest is not the cheapest airline to fly from Ontario to San Jose with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $116 on average.

• What is the cheapest Southwest flight from Ontario to San Jose?

  In the last 3 days, the lowest price for a flight with Southwest from Ontario to San Jose was $134 for a return flight and $48 for a one-way flight.

• Does Southwest fly direct to San Jose from Ontario?

  Yes, Southwest does offer direct flights for the route, with around 18 flights per week.

• What’s the cheapest day of the week to fly from Ontario to San Jose with Southwest?

  On average, the cheapest day of the week to fly from Ontario to San Jose with Southwest is Tuesday, when prices are around $38. The most expensive day is generally Saturday, where the average price is around $113.

• What’s the cheapest month to fly from Ontario to San Jose with Southwest?

  The cheapest month for Southwest flights to San Jose from Ontario is generally March, where plane tickets cost $95 on average. If possible, try to avoid the most expensive months of January and July, where tickets cost $260 and $326 respectively.