This is the text-mode form, in a typical 25x80 grid, with just one ticket shown. You can drag the form border to increase the form and the font increases too.. 
<img src="tkt-textmode.png"><br>

This is the Qt based form. I took the occasion to update the UX: the form displays the airplane ticket and (if present) the reimbursment. In the rightmost panel there will be a list of the various segments of the ticket (one ticket can have several segments, 2 if you have a simple round trip travel, more if you have stopovers, etc...)<br>

My difficulty is with the 2 ticket panels: I think they are not nice to look at... and they are currently drawn using fixed coordinates... they asked to use bigger fonts and I have to redraw everything by hand... perhaps with layouts there would be less work, but I don't know how to use them correctly for such forms.<br>

Please note that label "Comp" has a custom QLineEdit "055" and a <i>lookup</i> QLabel whose value is now "ALITALIA". If I align Comp with "Periodo" (row above) the lookup QLabel would not fit...<br>
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I have a couple of ideas on how to convert to layouts but I won't say anything about them, since I don't know if they are able to handle changes in font and font size...<br>
<img src="tkt-qt.png">