The aggregate rating of Carnival Liberty is build on scorse given by the following portals:
| Aug / 24 | Sep / 24 | Oct / 24 | ||
| cruisetimetables.com | 3.0 / 74 | 3.9 / 74 | 3.9 / 74 | |
| cruisemapper.com | 4.0 / 1 | 4.0 / 1 | 4.0 / 1 | |
| cruiseline.com | 4.0 / 4387 | 4.0 / 4394 | 4.0 / 4401 | |
| cruisedirect.com | 4.3 / 39 | 4.28 / 39 | 4.28 / 39 | |
| cruisecritic.com | 3.9 / 1 | 3.9 / 1 | 3.9 / |
Carnival Liberty is also ranked in: