The Night Overground service on the East London line will be expanded next weekend as services extend north to Canonbury and Highbury & Islington stations from Friday 23 February.
The new service will link the Night Overground to the overnight service on Victoria line for the first time .
The Night Overground has run on Friday and Saturday nights between Dalston Junction and New Cross Gate since December last year.
TfL says that already more than 35,000 journeys have been made on the route.
The Mayor of London, Sadiq Khan, said: “Following our hugely successful launch of the Night Tube, I’m delighted that we will be able to extend the Night Overground service to help even more Londoners.
“This extension will connect the Night Overground to the Night Tube. These night-time services are providing a huge boost to our economy and a safe and reliable way for people to travel across the capital, helping all those working hard during the night or out enjoying everything the capital’s nightlife has to offer.”