[jn]

> It is well established that prices RyanAir advertises are not prices passengers pay.

Not true. An EU regulation in force since 2008 makes that illegal [1]. Ryanair, for all its other faults, abides by the law.

[1] Article 23, Regulation No 1008/2008. PDF: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2... "The final price to be paid shall at all times be indicated and shall include the applicable air fare or air rate as well as all applicable taxes, and charges, surcharges and fees which are unavoidable and foreseeable at the time of publication."