You should be clear with few things if you want cheap airfare to Paris. You should plan well in advance and another thing is that your schedule should be flexible. There are a number of airlines who put their tickets up for sale days in advance and that too at cheaper rates. The tickets may be there 3 months in advance. So plan early, you may get the best deal.
The rates are further lowered down during the off-season. This off-season is from mid Jan to the end of March and from early November to early December. Weekend flights usually cost more so you should try and fly during the weekdays. However there are so many people who cannot plan in advance because they need tickets to Paris at the last minute. So such people should make it a point to visit the airlines sites.
Such travelers who need the tickets quickly should also look on budget airlines like Easyjet and Ryanair. You can get good deals here. The rates may even be lower than the regular carriers. You can also get cheap airfare from travel sites like Orbitz and Expedia. They list the fares of all the airlines as well as their best fares. There are also some search based travel sites which offer the same services. You can get information about the best airfare to Paris on these sites.
Try to fly to Paris from major airports like New York. This is because there are a number of flights to Paris from here so you are more likely to get better rates than what you would get from other smaller airports and Make your schedule flexible if you want cheap airfare to Paris. You will have to pay more if you fly during the school holidays. So it's better to travel during the weekdays. Check the price well in advance. You can save money by extending your stay for a day or two so that you avoid the popular dates. You can get good deals if you fly on Wednesdays and Saturday mornings.
Try to fly during the weekdays. This is because the weekday flights are usually not full and hence the airlines offer discounted rates in an attempt to fill in the seats. This is not the case with weekend flights which are almost always full. The discounted tickets however disappear as soon as they are released. The airlines keep on changing their fares. So don't be too surprised if you trip price increased in an hour.
The flights are jam packed during the holiday season as in Christmas. The ticket rates usually go up during this time period. However you can get some good discount offers if you fly on Christmas or New Years Eve. There are also some good package tours. Some tours have air-only deals. These deals may turn out to be the cheapest that you can get.