Please be aware that Paris has multiple airports and that these results are for all airports serving the city.
The best month to arrive at Paris is May and the most expensive month to fly is September. (Average prices, based on 790 datapoints.)
The best day to arrive at Paris is Tuesday and it would be best to avoid Monday, as prices are on average 17.12% higher than on Tuesday. (Average prices, based on 804 datapoints.)
The cheapest airline flying to Paris is Alitalia. They are 47% cheaper than Lufthansa CityLine. (Average prices, based on 885 datapoints.)
At Paris the most flights depart around 06:00. (Hourly flights, based on 947 datapoints.)
From Paris it is on average the cheapest to fly to Amsterdam and to London. (Average prices, based on 424 datapoints.)