Peak season
Visitors arriving on cheap flights to Paris will find any season or month convivial for enjoying the delights of the City of Lights. Paris has a semi-oceanic climate so temperatures are not too extreme and Summer (June to August) is generally a pleasant time to visit weatherwise. However, peak season, especially July and August, also coincide with French annual holidays which can make sightseeing frustrating due to a lack of staffing at tourist facilities. Increased prices for flight tickets and hotels, plus larger crowds at attractions and on public transport can make Paris in the summer a no-go for many people. But on the upside there are lots of festivals and events taking place at this time, and the city has a fun international vibe.
Off Season
Between November and March is considered the off season in Paris, but it is still a charming city especially if there is a light dusting of snow. It gets busy around Christmas and New Years but either side of this period you’re most likely to get the cheapest flights to Paris in winter and reduced prices on accommodation.