It is now four wins and one draw from five away games this season for Preston, an incredible return considering they have lost all five home games.
They are probably quite pleased then to be on the road again this weekend as they attempt to edge closer to the top six.
Such a commanding win at the Madejski Stadium, and just a second clean sheet of the season, serves as a reminder of the quality in their side.
Scott Sinclair was on target once again and there was a first goal in Preston colours for Emil Riis Jakobsen before Brad Potts rounded off the scoring late on.
They will certainly pose a threat to a Rotherham side who have kept only two clean sheets this season.
The Millers dominated the first half against Luton in midweek but were ultimately beaten by James Collins's 70th-minute volley.
It was a game that highlighted two of Rotherham's key problems this campaign – missing vital chances and failing to offer much attacking threat after falling behind.
Following three defeats in four games Paul Warne is now looking nervously over his shoulder, particularly after Sheffield Wednesday's points deduction was reduced.
His side are two points above the relegation zone in 19th and face high-flying Swansea City and Bournemouth later this month.
Rotherham United Championship form: LDLWLL
Preston North End Championship form: LWWLLW
Paul Warne has said that he needs to "freshen the team up" after suggesting that fatigue was a problem for Rotherham against Luton.
One definite change will see Joe Mattock drop out of the side after coming off just ten minutes into the game on Wednesday with a hamstring problem.
It has been confirmed that Shaun MacDonald has broken his leg following a challenge at Stoke last weekend and will miss at least the next two months.
Alex Neil could name the same side for a second game in a row after how impressive his team were against Reading.
Rotherham United possible starting lineup:
Blackman; Harding, Ihiekwe, A. MacDonald, Wiles; Lindsay, Crooks, Barlaser; Jozefzoon, Ladapo, Sadlier
Preston North End possible starting lineup:
Rudd; Fisher, Huntington, Storey, Rafferty; Browne, Ledson; Sinclair, Harrop, Potts; Jakobsen
We say: Rotherham United 1-2 Preston North End
It would seem foolish not to back Preston away from home at the moment, particularly after they smashed high-flying Reading in midweek. Rotherham are going through a rocky patch and will be thankful to get to the international break.