If you want a cheap flight from Jersey to Paris, you've got one airlines to choose from.
Paris Charles De Gaulle Airport is just one of the airports in Paris. If you're not set on a specific airport, try changing your search from Paris Charles De Gaulle Airport to Paris to see a broader range of flights – they might be cheaper. It usually takes about 3 hrs 40 mins to fly 346 km to Paris Charles De Gaulle Airport.
There are about ten flights to or via Paris every week, so you have plenty of options. Keep your eye out for flights
If you're planning on going to Paris during this time, you could take a look at other airport options. Or you could try to get a last-minute bargain.