Ryanair have some issues with yield management recenty as they are quite freequently sold out for several days. They try to much to achieve highest load factors. In comparison Norwegian was not sold out even during SAS strike selling last seats for 800 eur one way for one hour sectors for those who really needed to fly. But neverless Ryanair last minute prices are higher than Wizz Air, Wizz pricing algorithm more often leaves more seats for last minute bookings and then they sell them cheaper - Wizz Air usualy has price peak a few weeks or even a month before a flight. But Wizz Air more consequently uses last year average (or typical) price for the same day same route to set advance prices (for flights many months away, having them usually higher than competition).