The aggregate rating of Spirit of Discovery is build on scorse given by the following portals:
| Aug / 24 | Sep / 24 | Oct / 24 | ||
| cruisetimetables.com | 3.0 / 134 | 3.3 / 138 | 3.3 / 138 | |
| cruisemapper.com | 4.0 / 1 | 4.0 / 1 | 4.0 / 1 | |
| cruiseline.com | / | / | / | |
| cruisecritic.com | 3.6 / 55 | 3.7 / 58 | 3.7 / |
PointNemo.com