Aarflot was born on the farm Årflot at Ørsta (Aarflot i Ørsta) in Møre og Romsdal, Norway.
He was the son of Amund Knutsson Aarflot (1788–1860) and his wife, Berte Canutte Aarflot (1795–1859) who was a Christian hymnwriter in the Haugean tradition (haugianere).
He also served as one of the Settlement Commissioners (Forlikskommissær) on the District Conciliation Board (Forliksråd ) from 1870.
Aarflot became a member of the Norwegian Parliament from the Conservative Party, representing Aalesund og Molde during four terms (1868-1869, 1871–1873, 1880–82, 1889–1891).
This article about a Norwegian politician born in the 1820s is a stub.