Thomas Parkinson, 31, formerly of Acacia Street, Preston, was being hunted by police after absconding from HMP Kirkham on Wednesday, April 24.
After two and a half weeks on the run, Parkinson was this morning (Sunday, May 12) arrested in Southport by Merseyside Police.
Parkinson had been serving the last two years of a life sentence at the minimum security prison for the murder of 23-year-old Shaun Higgins in August 2006.
Parkinson, then 19, was sentenced to serve a minimum of 12 years.
Lancashire Police had previously warned the public to not approach the 31-year-old, saying he "could be violent".