Originally posted by: allisolm
We used to get them at Leicester Square for same day performances.
"The square is also the home for 'tkts', formerly known as the Official London Half-Price Theatre Ticket Booth. This booth is jointly owned and operated by various theatre groups. Tickets for theatre performances taking place around the West End that day are sold from the booth for around half-price. The popularity of the booth has given rise to many other booths and stores around the square advertising 'half price' tickets for West End shows. It is claimed that at least some of these booths are fraudulent. Despite having names like 'Official Half-Price Ticket Booth', they are neither official nor do they offer half-price tickets. "
Here is their site for cheaper than full-price.