To save up to 8% on this flight, we recommend booking at least 17 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Long Beach from $87 1-2 weeks out and tickets from $97 for flights departing within the next 72 hours.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Long Beach. Flights to Long Beach from Ontario in September are about $95 on average during September, but can be found for as low as $46.