The source for this is chosen as my Apple Watch. Change all sources in each find health samples action to your device source.
This shortcut shows all your flights climbed by day. It gives you the monthly detail. It gives you a summary and averages. It graphically shows them in the final show alert. If your number of flights climbed is more than 29, it caps it to 29 to fit nicely in the show alert.
Siri is supported
Widget is supported