the chief executive of europe 's largest budget airline made the vow in an interview with a french weekly newspaper , saying its average fare could be as low as € 40 -lrb- approximately £ 26 -rrb- next year .
it would be a € 6 like ryanair 's current average ticket price , with mr o'leary attributing the anticipated fare cuts to lower oil prices .
ryanair chief executive michael o'leary took aim at air france in his interview with le journal du dimanche .