The game had been due to kick-off at 20.05 GMT but was initially delayed before eventually being put back to Friday evening.
Sporting are certain to finish bottom of Group G after taking just two points from their first five games, but Videoton were hoping to become the first Hungarian club to qualify from the group stages of a major UEFA competition.
However, their fate could be decided before Friday's game as they need to beat Sporting and for Swiss side Basel not to win at Group G leaders Genk on Thursday night.
Videoton's hopes were extinguished when Genk and Basle played out a goalless draw in Belgium.
A victory at Sporting would see Videoton join Basel on nine points, but the Swiss side have the better head-to-head record between the teams.