Am not sure how (and i think a fee is imposed at Blackpool) the likes of Jet2 or the other airlines show this
Blackpool Airport impose a £10 Airport Development Fee on all adult passengers but do provide free parking for up to 14 days. This ADF charge is not mentioned throughout the Jet2 flight booking process. It is also worth noting that Ryanair cited this charge as the reason for pulling out of Blackpool Airport altogether.