Delph missed Villa's top-flight meetings against West Ham and Cardiff City with illness and a knee injury respectively.
However, manager Paul Lambert is confident the midfielder could make his 10th Premier League appearance of the season against Steve Clarke's side on November 25.
"I think Fabian will be okay for the West Brom game," the Scot told reporters, adding that he was also hopeful of returns for Antonio Luna and Andreas Weimann.
Both have suffered with hamstring injuries but could feature at the Hawthorns, although Gabriel Agbonlahor is doubtful due to his ankle problem.
"We have caught the international break at the right time," Lambert admitted.
"Our injuries have been relentless. When you look at the side we put out we've got a lot of injuries.
"We've got half a team out. It shows when you have two academy kids on the bench."