There is no universal standard
“No single supplement” is not a regulated label. It can mean different things depending on who is using it.
Common interpretations include:
- Waived supplement on limited inventory (a small number of rooms/cabins)
- Reduced supplement (a discount, not elimination)
- Solo rooms priced differently (a different room type, not the same unit)
- Operator absorbs the cost (sometimes only off-peak)
What to check
A practical reading is to separate:
- the claim (no/low)
- the scope (which departures, which room types)
- the mechanism (waived vs discounted vs re-priced inventory)
If those three are not stated, the label is incomplete.
Why it matters for solo travelers
Solo travel friction is often not about price alone. It is about predictability and planning confidence.
A clear label reduces uncertainty. A vague label increases it.