The relegation-threatened hosts led 1-0 at the break but Brad Dolaghan equalised four minutes into the second half – his fourth goal in three games – and Kane Wills struck the goal that proved the winner.
It means Worthing are assured of a top-seven finish, and still have a chance of finishing second or third, which would put them straight into a play-off semi-final, rather than having to play an extra game to reach that stage.
Aarran Racine’s team’s final two games are away to St Albans and at home to Weston-super-Mare.
See Mike Gunn’s pictures from the win at Dartford on this page and the ones linked.
Aarran Racine’s team’s final two games are away to St Albans and at home to Weston-super-Mare.
21. Dartford v Worthing pictures by Mike Gunn (11).jpg
Action from Worthing's win at Dartford Photo: Mike Gunn
22. Dartford v Worthing pictures by Mike Gunn (25).jpg
Action from Worthing's win at Dartford Photo: Mike Gunn
23. Dartford v Worthing pictures by Mike Gunn (10).jpg
Action from Worthing's win at Dartford Photo: Mike Gunn
24. Dartford v Worthing pictures by Mike Gunn (9).jpg
Action from Worthing's win at Dartford Photo: Mike Gunn