Aug 9, 2017 - 4:46 PM
in reply to scrow595
Hi scrow595 and welcome to MySwissAlps!
It sounds like a very nice trip! Although I'm not sure why you are concerned about the transfers from Wengen to Zermatt (at least in reference to the rail pass you choose).
The Swiss Travel Pass Flex that you mention allows for unlimited travel in Switzerland (on almost all routes) and in your case for any 4 days out of 30. The more travel you do on those 4 days the more value you get from that rail pass (the # of transfers therefore don't matter).
However they are quite expensive.
The Swiss Travel Pass (not the flex so it is for consecutive days) gives a much better value. The 8 day version is only 80chf more than the flex version for 4 days. This means you can have unlimited travel on every day you are in Switzerland (train, bus, boat, some cable cars etc.). You won't be only using transit on the days you move towns so it can be a much better deal.
For pricing and how to buy the Swiss Travel Pass online click here and to see a map of validity click here.
Both passes cover the same areas/routes so only the price changes.
I hope that makes some sense to you, let us know if you have further questions!