Celebrity Millennium I1 Inside Cabins
Cabin category I1 is a standard-size inside cabin on Celebrity Millennium: 111 I1 cabins on decks 6, 7, 8, 9 and 11, each 347 sq ft.
Celebrity Millennium I1 inside floor plan
- Sleeps
- Up to 4 guests
- Beds
- I1 staterooms include a king bed that converts into two twins · with some rooms offering Pullman beds for triple or quad occupancy.
How Celebrity Millennium I1 cabins compare
Celebrity Millennium I1 inside cabins are standard size: the same 347 sq ft as 1 other inside category; none of its cabins are connecting cabins.
I1: 347 sq ft · tied #1 with 1 other of 2 inside categories
Find Celebrity Millennium I1 cabins on the deck plan
Deck 7 · 38 I1 cabins
Swipe to pan · tap a cabinHover a cabin · click to pinClosest alternatives to Celebrity Millennium I1
Only what's different from I1 is shown.
Where I1 inside cabins sit on Celebrity Millennium
Forward holds the most I1 cabins, 49% of those with a recorded position. I1 cabins are on decks 6, 7, 8, 9 and 11; deck 7 has the most (38).
What's inside a Celebrity Millennium I1 inside cabin
The I1 category signifies a Prime Inside Stateroom, representing an interior cabin (no window or balcony) that is situated in a highly desirable location on the ship. These rooms are typically found midship on a higher passenger deck, offering quick, convenient access to central amenities, less noise, and the most stable ride with minimized motion, making it the most expensive and sought-after tier among the inside cabins. Beds: I1 staterooms include a king bed that converts into two twins; with some rooms offering Pullman beds for triple or quad occupancy.
Included
- Convertible king/twin bedding
- seating area
- modern bathroom with shower
- interactive TV
- mini-fridge
- in-room safe
- daily housekeeping
- room service availability
Celebrity Millennium I1 cabin photos
All 111 cabins in category I1
Deck 6
3 cabinsDeck 7
38 cabinsDeck 8
30 cabinsDeck 9
34 cabinsKnown issues in cabin category I1
No issues recorded for I1 cabins.
Inside prices on Celebrity Millennium
Prices are by cabin type. We don't price individual categories like I1; "See inside fares" opens current inside fares with our booking partner.
Inside is $7 less per night than an ocean view cabin.
Fares as of Oct 9, 2026. Prices change daily.
25% of upcoming Inside sailings are currently below their recent average fare.
I1 on other Celebrity ships
Celebrity Millennium I1 cabin FAQ
How big is a Celebrity Millennium I1 inside cabin?
Every Celebrity Millennium I1 cabin is 347 sq ft. That is the most common inside size on Celebrity Millennium.
How many Celebrity Millennium I1 cabins are there, and on which decks?
Celebrity Millennium has 111 I1 cabins on decks 6, 7, 8, 9 and 11; deck 7 has the most (38).
How many people can stay in a Celebrity Millennium I1 cabin?
Every Celebrity Millennium I1 cabin with a recorded occupancy sleeps up to four.
What's the difference between cabin category I1 and I2 on Celebrity Millennium?
Celebrity Millennium I1 and I2 cabins are the same size (347 sq ft in total). I2 cabins are on decks 2 and 3; I1 cabins are higher, on decks 6, 7, 8, 9 and 11.
Do Celebrity Millennium I1 cabins connect?
No Celebrity Millennium I1 cabins are recorded as connecting cabins.