InsideCarnival Horizon · Cabin category 4I

Carnival Horizon 4I Inside Cabins

Cabin category 4I is a standard-size inside cabin on Carnival Horizon: 27 4I cabins on decks 10 and 11, each 185 sq ft.

27cabins

185 sq ftinterior

Up to 4guests

10 & 11decks

See inside faresInside cabins on Carnival Horizon from $52 pp/night. We price by cabin type, not by category.

// 01 · Floor plan

Carnival Horizon 4I inside floor plan

Carnival Horizon Interior (4I) floor plan

One floor plan covers all four 4I layouts.

Interior185 sq ft

Total185 sq ft

Sleeps: Up to 4 guests26 cabins sleep 2 · 1 sleeps 4
Beds: Two twin beds (convert to king)
Bathroom: Full bathroom with shower
Living space: Desk and seatAmple closet space

4I's total size vs every category on the shipInterior plus balcony, from the smallest category to the largest.

4I185 sq ft

185 sq ft4G · smallest

430 sq ftGS · largest

// 02 · Compare

How Carnival Horizon 4I cabins compare

Carnival Horizon 4I inside cabins are standard size: the same 185 sq ft as 14 other inside categories; none of its cabins are connecting cabins.

4I: 185 sq ft · tied #1 with 14 others of 15 inside categories

Inside avg · 185 sq ftShip avg · 205 sq ft

4IInterior185 sq ft 4GInterior185 sq ft 4FInterior185 sq ft 4EInterior185 sq ft 4BInterior185 sq ft 4HInterior185 sq ft 4CInterior185 sq ft 4AInterior185 sq ft FAFamily Harbor Interior185 sq ft 4DInterior185 sq ft 4SCloud 9 Spa Interior185 sq ft 4JInterior with Picture Window (Walkway View)185 sq ft 1AInterior Upper/Lower185 sq ft HAHavana Interior185 sq ft 4TCloud 9 Spa Interior185 sq ft

// 03 · Deck plan

Find Carnival Horizon 4I cabins on the deck plan

Deck 10 · 14 4I cabins

Swipe to pan · tap a cabin

4IInside14

// 04 · Reviews

Carnival Horizon 4I Cabin Reviews

3.0

1 reviewFrom one 4I cabin

Stayed in a 4I cabin on Carnival Horizon? Help future cruisers know what to expect.

TartParsley

Aug 13, 2026

Cabin 11271

Deck 11 · Starboard · Forward

// 05 · Alternatives

Closest alternatives to Carnival Horizon 4I

Only what's different from 4I is shown.

Carnival Horizon Interior (4G) cabin, photo 1 of 2

Step down

Interior104 cabins

Same size, on lower decks

Decks 8 & 9Leans aft+25 pts connecting

See 4G

Carnival Horizon Ocean View (Obstructed View) (6B) cabin, photo 1 of 2

Step up

Ocean View (Obstructed View)16 cabins

The next type up: an ocean view cabin

+35 sq ft insideDeck 3+75 pts connectingSleeps up to 3

See 6B

Carnival Horizon Interior (4A) cabin, photo 1 of 2

Similar, different spot

Interior47 cabins

Same size, on lower decks

Deck 1+26 pts connecting

See 4A

// 06 · Location

Where 4I inside cabins sit on Carnival Horizon

All 4I cabins are forward. 4I cabins are on decks 10 and 11; deck 10 has the most (14).

Forward · Midship · Aft

BOWSTERN

Forward100%27 cabins

Midship0%0 cabins

Aft0%0 cabins

Port · Starboard

Port48%13 cabins

Starboard52%14 cabins

Deck spread

Deck 10

Deck 11

1 4I cabin that sleeps 4

// 07 · What's inside

What's inside a Carnival Horizon 4I inside cabin

On Carnival Horizon, Interior staterooms (category 4I) measure 185 sq ft and sleep up to 4 guests. Beds: two twin beds (convert to king). Carnival Horizon has 27 4I cabins, on decks 10 and 11.

Full bathroom with shower. Desk and seat and ample closet space.

Included

Dedicated stateroom attendant
Soft, cozy linens
In-room safe for valuables
Plenty of closet and drawer space
Television
Stateroom climate control
Bathrobes upon request

// 08 · Photos

Carnival Horizon 4I cabin photos

Cabin

// 09 · Every cabin

All 27 cabins in category 4I

Deck 10

14 cabins

10271 10272 10275 10276 10279 10280 10283 10284 10287 10288 10291 10292 10295 10296

Deck 11

13 cabins

11262 11263 11266 11267 11270 11271 11275 11278 11279 11282 11283 11286 11287

// 10 · Known issues

Known issues in cabin category 4I

No issues recorded for 4I cabins.

// 11 · Prices

Inside prices on Carnival Horizon

Prices are by cabin type. We don't price individual categories like 4I; "See inside fares" opens current inside fares with our booking partner.

Lowest fare by type · per person / night

Inside is $16 less per night than an ocean view cabin.

$52

+$16$68

+$39$107

+$41$148

InsideOcean ViewBalconySuite

Prices below recent average · now

12%of sailings

12% of upcoming Inside sailings are currently below their recent average fare.

See inside fares

// 12 · FAQ

Carnival Horizon 4I cabin FAQ

How big is a Carnival Horizon 4I inside cabin?

Every 4I cabin is 185 sq ft. That is the most common inside size on Carnival Horizon.

How many Carnival Horizon 4I cabins are there, and on which decks?

27 cabins: 14 on deck 10 and 13 on deck 11.

How many people can stay in a Carnival Horizon 4I cabin?

Up to four. 26 cabins sleep 2 and 1 sleeps 4.

What's the difference between cabin category 4I and 4G on Carnival Horizon?

They are the same size (185 sq ft in total). 4G cabins are on decks 8 and 9; 4I cabins are higher, on decks 10 and 11.

Do Carnival Horizon 4I cabins connect?

No 4I cabins are recorded as connecting cabins.

// 13 · Next steps

Keep researching

CabinsAll Carnival Horizon cabinsThe cabin types and categories, compared.Open Deck plansEvery deck, every cabinFull deck-by-deck plans for Carnival Horizon.Open Cabin searchFind a specific cabinLook up any room number.Open ConciergeAsk the Cruise ConciergeNot sure 4I is right? Ask us.Open