Users have found that booking a flight from Los Angeles to Ontario at least 61 days early can save you up to 36% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Los Angeles to Ontario for as little as $306 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $373 for flights departing within the next 3 days.
Our data shows that September tends to be the cheapest month to fly to Ontario from Los Angeles. Users have commonly found prices around $286 for the month, but tickets can be as low as $137. Due to multiple factors, prepare for potentially higher prices in November.