In general when looking for the cheapest flight to Paris, try to book your flight during the month of November for the best deal.
On average, from most locations, when planning your trip to Paris, try to book your flight in the region of 54 days in advance for the cheapest prices.
Most of our users find that booking their departure to Paris on a Tuesday is the cheapest. Conversely, departing on a Saturday seems to be the most expensive.
Typically, cheap prices to Paris are most often found for evening flights. Cheap prices are less likely for afternoon flights.