Hi hillbankdee ... unfortunately tour operators do set their own rules and some stipulate a minimum 6 month passport validity period for all destinations, including Spain, a country which has no such entry/immigration requirement. This is what causes so much confusion for holidymakers.
You have quoted from the Airtours brochure, which does not stipulate a minimum 6 month validity period. However, if you look at
THIS page on the My Travel website, it does stipulate a 6 month validity requirement for all destinations. One of those destinations is Spain, which like so many other countries, requires that passports are valid only for the duration of stay in the country. That requirement on the My Travel website forms part of their booking conditions.
So we not only have tour companies stipulating rules which conflict with official immigration requirements, we have different parts of the the same company stiplulating rules which contradict with each other.
As I mentioned earlier, we have had members lose their holiday because the airline/tour operator would not accept their valid passport at check-in as it did not have 6 months validity remaining, despite the fact that the country they were travelling to only required the passport to be valid for the duration of their holiday.
The easy solution is to renew your passport when it only has between 6 and 9 months remaining. But so many holidaymakers understandably and sensibly check passport requirements with the embassy of the country which they are proposing to visit, not realising that their airline or tour operator may impose quite different regulations.
Unfortunately some check in staff do not have the discretion or flexibility to waive this company rule, even when they realise it does not apply to the intended destination.
David