Industry data reveals compelling insights into the impact of upselling programs on hotel revenue. On average, hotels that adopt upselling initiatives experience a notable total revenue increase of 5-10%. This growth is distributed across various stages of the guest journey, with pre-arrival upselling contributing a significant 1.5 - 3% boost, on-arrival upselling generating a substantial 3 - 6% increase, and in-stay upselling accounting for a further 0.5 - 1% rise. These figures underscore the effectiveness of upselling strategies in maximizing revenue streams throughout the guest experience, from initial booking to on-site engagement.