To enter the British Airways (BA) lounge at London Gatwick (located in the South Terminal), you generally need to meet one of three criteria. First, you must be flying in a premium cabin: Club Europe (short-haul business) or Club World (long-haul business) on a BA-operated flight. Second, you can gain access through "status"—if you are an Executive Club Silver or Gold member, or an oneworld Sapphire or Emerald member, you are entitled to entry even if you are flying in Economy. Third, you can occasionally use "voucher" access if you have a specific credit card or promotional pass linked to your account, though BA does not typically sell "one-day passes" for cash at the door. The Gatwick lounge is highly regarded, featuring a dedicated "First" section for Gold members and a spacious "Club" section with a full bar, hot food buffet, and floor-to-ceiling windows with excellent runway views. Note that if you are flying on a BA codeshare operated by Vueling, you generally do not get lounge access unless you have high-level BA status.