The best day to fly to Paris is often Tuesdays and Wednesday as well as on some Saturdays for return flights.
Mid-week or Tuesday and Wednesday is often the best day to fly to Paris, but you should book your flight to Paris well in advanced during the off peak shoulder season like mid-January to March or September or even early December which is often best times to find the cheapest flights to Paris.
The best time to visit France is during the spring months of April to June as well as the fall months from September to November.
The spring months of April to June and the fall months of September to November are the shoulder seasons in France and are the best times to visit France as during the shoulder seasons, France has pleasant weather, is less crowded than in summer and also has mild temperatures.
Although if you like beach trips and festivals and don't mind the hot weather and crowds then summer months can be the best time for you to visit France.
Winter is also a good time to visit France if you don't mind the cold and you like skiing and Christmas and there's also less crowds and tourists during the winter season in France as well.
During the spring months of April through June in France you can enjoy blooming flowers, less crowds, and comfortable temperatures.
The fall months in France from September through November have harvest festivals, mild temperatures and pretty and vibrant foliage and also less crowds than the summer rush time.
And September in France is also ideal for very comfortable weather.
The busiest and most expensive time in France is Summer, which is from June through August, although it's also a great time for enjoying the French Riviera and also experiencing of lively events like the Bastille Day and even the Tour de France.
Winter months from December through February is a great time to visit France for skiing and even cultural exploration, with often lower prices and less crowds, especially in major cities like Paris.