Originally Posted by
Changeup2000
Thank you very much. It seems in this case the airline trick actually works in my favor because I would like to go to Vienna. No one from other city or from Munich itself will compete with me for these tickets.
Another question: since LH/OS marries these segments, the connection should be makeable? I know MUC is a very efficient airport, but 45 minutes involving crossing immigration still makes me nervous ...
note that your flight to MUC likely isn't married JUST to VIE, but other European destinations as well. Slightly more competition.

MUC is very efficient for a transfer, and if you miss it they'll just put you on the next flight. I'd do it.