George Ross Wilcox was charged in Pima County, Ariz., in 2009 with four counts of sexual contact with a child under 15 involving his quadriplegic stepson who suffers from a brain injury.
But Wilcox fled two years ago before his trial ended and, in his absence, was found guilty of two of the charges.
He was featured on the website of America's Most Wanted before police in the Metro Vancouver suburb of Delta, B.C., arrested him on Monday. He is being held on an outstanding extradition warrant.
Wilcox is a Canadian citizen and Delta police say they began investigating in October 2009 after being warned that Wilcox could be travelling to B.C.
Officers in Delta will continue working with the Justice Department in the U.S. as the extradition process continues.
Wilcox was born and raised in Calgary and has family here. Calgary police told CBC News they have no interest in talking with Wilcox.