With the score still goalless after 120 minutes of the Championship play-off final, the much-coveted final spot in the top flight had to be decided from 12 yards.
And on-loan Liverpool goalkeeper Ward played his part, keeping out the fifth spot-kick from Jordan Obita before Christopher Schindler converted to send the Terriers into the Premier League.
Huddersfield return to the top level of English football for the first time since the 1971-72 season, joining Newcastle United and Brighton in promotion from the second tier.
Ward had previously saved two penalties in the play-off semi-final against Sheffield Wednesday earlier this month as David Wagner's side won that shootout by the same scoreline.