Please be aware that Paris has multiple airports and that these results are for all airports serving the city.
The best month to fly between Paris and Amsterdam is May and the most expensive month to fly is October. (Average prices, based on 217 datapoints.)
The best day to arrive at Paris is Saturday and it would be best to avoid Friday, as prices are on average 186.4% higher than on Saturday. (Average prices, based on 217 datapoints.)
The best time to fly is at around 9. (Average prices, based on 441 datapoints.)