From most locations, the cheapest flights to Paris can be found during the month of February; however great deals can be found at other times.
In general, most flyers find the cheapest time to book a flight to Paris is about 60 days prior.
From most locations, the cheapest flights to Paris are found on a Tuesday. Booking a Friday departure is usually the most expensive.
On average you can find the best deals on plane tickets to Paris when looking for flights with evening departure times.