One of the planning problems around going to Munich for a Bayern match, and trying to fit it into a weekend, is knowing when the match will be played: it could be anytime from Friday night to Sunday late afternon. In the middle of the season, the precise dates are published only a few weeks in advance.
However, three games are predictable, and I have started to focus on them for that reason:
(1) First game of the season is on Friday night and the reigning champions play that game at home.
(2) All second last games of the season are at 3.30pm on Saturday.
(3) All last games of the season are at 3.30pm on Saturday.
(So, theoretically, Bayern should be at home for one of those last two.)
I thought I'd mention it, as it might be worth considering.
After getting to three matches two seasons ago, I got to none this past season, and am promising myself I'll try to get to at least one next season. The games above are the most likely options.
"Wherever that man went, he went gratefully."
--------- Attributed to Seamus Heaney ---------