The cost of a holiday to Benidorm can vary depending on the time of year you visit. Generally, the cheapest month to go to Benidorm in terms of accommodation and flights is during the shoulder seasons, which are the periods just before or after the peak tourist seasons. In Benidorm, the shoulder seasons are typically in April-May and September-October. During these months, the weather is still pleasant, but the crowds are thinner and the prices are usually lower compared to the peak summer months of June to August.