The London Dungeon is a popular London attraction and during peak periods such as weekends and school holidays we do experience queues to enter the attraction. It is difficult to say how long a queue can be, as this can vary every day. However if you plan on visiting The London Dungeon during a school holiday or weekend, we do recommend that quieter times of the day to visit are usually found at first admission or later in the day towards last entry, however this isn't always guaranteed.