He was born in Nicosia, Cyprus in 1966. He studied classical piano and music theory in Cyprus and continued his studies at Berklee College of Music in Boston, where he graduated in 1990 with a bachelor of music degree in arranging. He also received the Count Basie Jazz Masters Award for pianists in 1989 and the Quincy Jones Jazz Masters Award for arrangers in 1990. After Berklee, he continued his jazz piano studies with highly respected educator Charlie Banacos.

Relocating to Greece he started to perform with some of the country’s most acclaimed artists.

He is a founding member of Human Touch (he is the pianist and also the drummer), one of the longest standing Greek groups, that is round up by the saxophone and flute player David Lynch and the bassist Yiotis Kiourtsoglou. Human Touch released their homonymous debut album in 1998.

Lantsias released "Epistrofi", his first album as a leader, in 1999.