I'm not the tax police, this is just a question.
Looked at a flight ex-LTN with HLX (to CGN). On the outward sector, the taxes/charges came to around £6.
An easyjet flight from LTN to CDG, for example, quotes a tax and related charges for the outward sector of £11.
Since both airlines are flying from the same airport, why do they charge differenent levels of tax/charges?
Ok, I realise there are different insurance levies etc., but £5 difference seems a bit high.