With four of their final six matches coming against top-half opponents, Paris were looking for a strong start to consolidate their safe position in mid-table. And that’s just what they got, racing into a two-goal lead inside eight minutes.
Monaco had no answer for the pace of Moses Simon down the left, and he utilised the space to cut inside and send in a low cross, which Jonathan Ikoné converted at the back post.
The visitors had barely caught their breath when they were picked apart on the other wing, with Ikone involved again.
He linked up well with Marshall Munetsi, freeing the Wolverhampton Wanderers loanee to square for Ciro Immobile, and the veteran Italian made no mistake in rifling home his second goal in as many appearances.
Lukas Hradecky and Wout Faes combined to block Maxime Lopez and stop Monaco from falling three behind after Paris ripped through them again, but that proved to be only a temporary reprieve.
A pair of Kevin Trapp saves to deny Simon Adingra and Ansu Fati proved vital when the hosts launched a stunning counter that ended in Immobile finding Ikoné, allowing the winger to double his tally for the evening in almost identical fashion to his first.
Lopez then fired over, but Sébastien Pocognoli’s shell-shocked side eventually regrouped and applied pressure before the break.
Folarin Balogun contrived to fire over at the back post with the goal at his mercy, but netted soon afterwards, having been picked out by Aladji Bamba, becoming the first player since Neymar in 2022 to score in seven successive Ligue 1 matches.
Momentum was with Monaco, and Trapp denied Fati again in first-half stoppage time, with the Paris player perhaps grateful for the timing of the interval.
Antoine Kombouaré’s men regrouped and were back to their attacking best upon the restart, though a clinical edge deserted them with several promising counters ultimately coming to nothing.
The introduction of Paul Pogba from the bench for a first appearance since December looked to have initially buoyed Monaco, but just two minutes later, they conceded again to put the contest beyond them.
Only six minutes after being substituted on himself, Luca Koleosho let fly from distance and left Hradecky helpless as his strike arrowed in off the underside of the bar.
That goal rounded off Paris’ biggest win of the season, opening up a 12-point gap to the drop zone and stretching their unbeaten run to seven matches.
Monaco, meanwhile, are beaten in Ligue 1 for the first time since January as they miss the chance to climb into the top three, with this dismal result extending a poor run of form in Monday-held away league matches to one win in 10.
Flashscore Man of the Match: Jonathan Ikoné (Paris FC)