Like many destinations in Europe, cheap airline tickets to Paris can usually be found during the winter months, especially January and February when temperatures stay between 0 and 5 degrees Celsius (30 to 40 Degrees Fahrenheit), skies are usually gray, and the weather is damp and windy. The city is at its best in springtime, so booking flights to Paris will be easy but often expensive from April to June when the temperatures are usually between 15 and 20 degrees Celsius (60 and 70 degrees Fahrenheit). July and August can be hot and stuffy with temperatures going to the upper 20 degrees (Celsius) (70s and 80 degrees Fahrenheit). Flights to Paris can be packed in early autumn when the sunny weather continues through the first half of October. July is mostly the warmest month and February the coolest.