Can I still charge seperately for surcharges?
Yes. It is commonly accepted by LCCs to make external costs -like fees to external parties like authorities- visible for the customer, as this will also makes the actual transport price visible. It is, however, also commonly expected by customers that the total price is easily accessible. As basis pricing is flexible, it is no longer practical to seperate basis price from surcharges for the reason of keeping the basis freight frozen. Simplicity is the key! How exceptions are managed? Exceptions are generally not supported. If some exception scenario, which entails additional effort on your side, or provides additional value to the customer, is offered to the customer, then the customer must pay extra for such exceptions. In the LCC industry, exceptions like flexible tickets, meals, priority boarding, extra leg space hardly ever come for free.