@Frank -
YOU ARE NEVER GOING TO KNOW HOW A TOUR COMPANY PRICES ITS TOURS.
You are stating the obvious. It's precisely because we will never know for sure 'how' they price it that we are having this discussion. If it were spelled out in gory detail, all would be known and there'd be nothing to discuss. The whole point of this discussion thread is to speculate about the factors that may go into the pricing calculation, so we can better understand it. Along the way, useful insights emerge that lead to a better understanding.
I've learned here that OAT don't charge a single supplement. And I've learned that a new single supplement policy was introduced by RST for 2026, and that RST use the word āsubsidyā in their own explanation. I've gained insight from single travelers about their experiences and opinions. So while we will never know all the details, I feel better informed about the process.
This discussion has reinforced my earlier instinct that single supplements are appropriate, and I'm glad to see RST applies them. I personally think they should be variable based on the tour (eg, a single supplement would be higher in Switzerland than in Poland, due to much higher hotel prices), but I can see that a uniform amount may be easier to administer and understand.
And of course a tour company is never going to advertise a tour as '$xxx for 2'; that was just a way to illustrate a point.
@Laura
They do limit the number of singles. For example, on this page they state they offer āa limited number of single supplements on each departureā
https://www.ricksteves.com/tours/tour-conditions
Exactly ā and if they charged a bigger single supplement, thereās a possibility that they could offer more single supplement spaces. They need to limit them at the moment because they donāt make as much money on them (I speculate).
@Susie
I donāt quite understand why someone travelling by themselves would need to pay a single supplement, which I presume, is for their hotel room. The majority of hotel rooms are the same cost, whether for one person or two, unless breakfast is included. I know cruise ships charge a single supplement, but wasnāt aware this applied to land based tours. Can anyone clarify this for me please?
Susie ā when RST plans a tour, they have a target amount of money they need to make in order to cover costs and make a profit. They currently offer tour sizes āup to 28 peopleā. If all 28 were singles (using an extreme example to illustrate the point), that would require 28 hotel rooms. If, instead, they had 14 couples (the same 28 people on the bus), then they would require 14 hotel rooms. Obviously, they are going to pay more for 28 rooms vs 14 rooms, so they would make less money if it were all singles. Obviously, itās in the financial interest of RST to sell to couples rather than singles. However, they may not sell out every seat if they had that as a hard restriction, so they offer a limited number of āsingle spotsā to make their offerings more appealing to a wider audience. Further ā it would be more difficult for RST to āblock bookā 28 rooms vs 14 rooms, especially since they target smaller, more eclectic hotels that are often quite small. My guess is they block book 16 rooms well in advance, and assume 12 couples and 4 singles (28 travelers in total). Once the tour is fully sold, they could fine-tune the reservation details with the hotel, possibly releasing a room or two if fewer singles have signed up.
One final consideration is that many of the smaller, eclectic hotels in Europe do have some unusually small rooms that are truly only capable of accommodating one person (Iāve stayed in a few of them along the way!). So in many cases, the hotels and RST can probably come to a happy arrangement on these rooms, assuming a handful of single travelers in the group.