Thing about lowcosts is that they tend to earn way more cash than those you've mentioned. I've read somewhere that WZZ is able to withstand up to 6 months in those limited operations phase. Looks like they are doing quite well anyway. Seen reports of A321's flying to USA last week - I guess they were doing some kind of cargo operations. Plus Wizz is - if you look at it - the only one passenger airline in Hungary so government there might look at it somewhat as for national carrier and help in case things go really bad. Wizz air bankruptcy would pull BUD airport down too. Ryan might not be that lucky with that.