Your main gateway to Paris is Charles de Gaulle International Airport, also known as Roissy Airport. It's located 25 km to the north-east of Paris, and handles mostly international flights. Another airport within Paris is Paris-Orly Airport, which handles domestic traffic.
Budget-fare carriers that offer cheap flights to Paris from Charles de Gaulle and Paris-Orly are Clickair, Jet2.com, Sky Europe, and Zoom Airlines. You can also fly via easyJet, one of Europe’s largest no-frills, low-cost airlines, which offers cheap Paris flights. If you're from the southwestern part of Europe, you may fly via Vueling Airlines, a low-cost carrier from Spain which services Iberian routes.
Most major airlines offer economy class and premium economy class flights to and from Paris.