Goals from Lee Noble and Tom Bonner saw Dartford beat Luton Town to move into the Blue Square Bet Premier play-off spots at the expense of the Hatters.
Noble opened the scoring with a direct free-kick after he was brought down by Jonathan Smith just outside the area.
The Darts doubled the lead on the stroke of half-time when Bonner headed past Dean Brill from six yards.
Andre Gray went close for the Hatters late on when his shot clipped the crossbar before firing wide soon after.
VIEW FROM THE DRESSING ROOM
Dartford manager Tony Burman told BBC Radio Kent:
"I am absolutely delighted. It was a good away performance against a top, top club. It's one of the best results I've had so far.
"First half we were excellent, our passing was good. It's easier playing away. The expectation is not high and it is on our opponents Luton, but it was a great performance from us.
"I'm just delighted Dartford are playing at this level, in front of six-and-a-half thousand people. It's a dream come true."