Forgive me if I am missing something here but the only dates listed on the site at the moment are September 20 - 26. Its OCTOBERFEST, shouldn't the tour be in OCTOBER?

I don't know anything about history of the name of this festival, but I know it happens in September. Dates listed for the tour are correct. Actually on the official Octoberfest website it says the dates of this thing are Sep 22nd to Oct 7th. So looks like last week of Sep and 1st week of Oct.

Ooh, I found this on the Octoberfest website about the name:

Why is Oktoberfest called „Oktober"-fest when it actually begins in September?

The historical background: the first Oktoberfest was held in the year 1810 in honor of the Bavarian Crown Prince Ludwig’s marriage to Princess Therese von Sachsen-Hildburghausen. The festivities began on October 12, 1810 and ended on October 17th with a horse race. In the following years, the celebrations were repeated and, later, the festival was prolonged and moved forward into September.

By moving the festivities up, it allowed for better weather conditions. Because the September nights were warmer, the visitors were able to enjoy the gardens outside the tents and the stroll over “die Wiesen” or the fields much longer without feeling chilly. Historically, the last Oktoberfest weekend was in October and this tradition continues into present times

ok cheers