Yes, STATIONS is a Scrabble word!

Letter values in Scrabble US: S 1, T 1, A 1, T 1, I 1, O 1, N 1, S 1.

Is it a valid word?

STATIONS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

(Roman Catholic Church) a devotion consisting of fourteen prayers said before a series of fourteen pictures or carvings representing successive incidents during Jesus' passage from Pilate's house to his crucifixion at Calvary
a facility equipped with special equipment and personnel for a particular purpose
proper or designated social situation
(nautical) the location to which a ship or fleet is assigned for duty
the position where someone (as a guard or sentry) stands or is assigned to stand
the frequency assigned to a broadcasting station

Also: stations of the cross.