Swiss Travel Pass - snail mail only?

You can buy it at the train station in Switzerland.

Don' stress - Buy the tickets when you get to Switzerland at the airport. Its easy and fast. The cost will be the same. If you are landing in Zurich the ticket office is right opposite Starbucks. No lines and an easy Credit card transaction or cash. Just remember to make sure you travel with your passport as the pass is not valid without it. (not all conductors will ask - but they can).
Margaret

The Rick Steves site doesn't have this option before the payment page, and I'm not sure if I should go through with it.

You can buy on-line and print at home at. But it is easier to buy at train stations in Switzerland. Unless you are entering Switzerland by train and need to use it for that trip, no need to get ahead of time.

You can buy it at any border or airport station in Switzerland (not "at any train station" - some aren't even manned).
You can buy a print-at-home version for the same price from the SBB website: https://www.sbb.ch/en/leisure-holidays/travel-in-switzerland/international-guests/swiss-travel-pass.html

Where were you trying to buy? SBB doesn't offer a snail-mail option.

I agree with the above replies - unless you're taking a train from another country (and so will want to have the pass before arrival, so it will then cover the part of the train inside Switzerland), just get it at your arrival airport (both Geneva and Zurich airports have train stations right at the airport).

However, for future trips, know that most rail passes are snail mail only; there is usually a 2 day mail option, but there is not usually an internet option. Of course, most other rail passes are no longer a good deal for most travelers, but I wouldn't want you to get caught out.

Yes, I should not have said “any” train station but I knew from other posts that they would be arriving at Zurich (probably airport) and could buy it either there or at the main station.

The good news is that the last few times I have looked at prices, the price in Switzerland was lower than the price in dollars from Rail Europe, especially when you add the postage for the latter. So you are better off just getting the pass upon arrival in Switzerland.

Thank you all for your prompt and timely responses! Now I can sleep at night.

While "snail mail" usually refers to the national postal service, rail passes from most US suppliers, including our links, are delivered by traceable UPS or FedEx air service (not ground, not postal). (Even overnight UPS delivery can still require a day for processing, however.) Luckily, the continuous-day Swiss Travel Pass is one of the few that can currently be e-ticketed, as well as one of the few (along with the German Rail Pass) that are widely sold within the country of travel.

The OP has a 6-day trip and was trying to decide between a 4-day Flex or 8-day continuous pass. Since only the latter is available as a print-at-home, it is worth looking at the comparative prices.

An 8- day pass bought in Switzerland is 398 CHF, which converts to $400 at today's rate. ( Their credit card may or may not add a foreign transaction fee. Mine does not). The price of an 8-day pass e-version to print at home is $420 from Rail Europe. So they are ahead to wIt and buy it there if the is the chosen pass.

Actually the 4-day Flex for 210 CHF will serve them well if used for the four most expensive trips, including the Schilthorn if weather cooperates.