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 November and the most expensive month to fly is January. (Average prices, based on 1332 datapoints.)
The best day to arrive at Paris is Saturday and it would be best to avoid Friday, as prices are on average 191.3% higher than on Saturday. (Average prices, based on 395 datapoints.)
The best time to fly is at around 8. (Average prices, based on 1534 datapoints.)