Everyone either knows someone, met someone on a ship, or they themselves have been upgraded to a higher category than they paid for. Yes, it does happen but not as frequently as people think. How do upgrades work? Who knows? We’re still trying to figure it out, but here’s our theory.

Most upgrades go to passengers who book early and buy the lowest category on the ship in the form of a “Guarantee Cabin.” A “Guarantee Cabin” means that when you book your cruise, you are not assigned a cabin number, you are simply guaranteed that category or better. Since most people who cruise simply want to get the best price, “Guarantees” are a great way to fill the ship with people looking for a good rate.

The cruise lines always sell more “Guarantees” in a category than there are cabins in that category. For example, the lowest category on Celebrity Cruise Line’s Summit is Inside Cabin Z. There are approximately 6 Category Z cabins. However, on each sailing, Celebrity will sell between 40 and 60 Category Z “Guarantees”. You don’t have to be a rocket scientist to see that 34 people are going to get a free upgrade. Usually these upgrades are given on a first-come-first-served basis.

Most upgrades are often from low Inside Cabins to higher Inside Cabins, or low Outside Cabins to higher Outside Cabins. Rarely do passengers get upgraded from Inside to Outside but it does happen. Saying that, don’t book an Inside Cabin expecting a free upgrade to an Outside. It probably won’t happen.

If you are assigned a cabin when you deposit on your cruise, your chances of an upgrade are very slim. Upgrades from a Quad are very rare as there are relatively few Quad Cabins on a sailing. Cabin assignments can be made anywhere between a few weeks before and the day of departure. If you don’t like the cabin you are given, tough luck, you’re stuck. So if you’re afraid of being at the front, back, top, bottom, under the dining room – don’t take the chance. Take an assignment at time of booking.

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