Detectives managed to track down 24-year-old Kyiza Sandiford after he admitted himself to hospital following the stabbing.
22-year-old Keelen Wong died from a stab wound at the scene in Coldharbour Lane last October.
Sandiford has been sentenced to life in prison to serve a minimum of 23 years, for the murder of 22-year-old Keelen.
Detective Inspector Kevin Martin, from the Met’s Specialist Crime Command, said: “Today our thoughts are with the Keelen’s family and friends as his attacker was held to account for his murder.
“While nothing can truly assuage the pain of their loss, I hope today’s conviction allows them to hold on to his memory knowing his killer has been brought to justice.
“This awful attack took place in broad daylight, in front of people simply going about their business. An innocent young man lost his life to a large knife and this deeply shocked the community at the time.
“The brutal attack on Keelen was a terrible act of senseless violence. The investigation team and other specialist officers worked tirelessly to secure this conviction, trawling through hours of CCTV in order to follow the defendant’s footsteps.
“Today shows that the Met remains deeply committed to pursuing and prosecuting those who are willing to commit acts of violence on the streets of London. “
