Spots going fastAllure of the Seas vs Carnival Horizon
Side-by-side cruise ship comparison · Updated April 2026
Allure of the Seas is the significantly larger vessel at 225,282 GT — 69% more than Carnival Horizon's 133,500 GT. Built in 2018, Carnival Horizon is 8 years newer — an advantage for travellers seeking modern amenities and design. Carnival Horizon edges ahead in service with a passenger-to-crew ratio of 2.7:1, meaning more crew per guest.
Score: 4 – 3
Quick Compare
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Category
Allure of the Seas
Carnival Horizon
Size
225,282 GT
133,500 GT
Passengers
6,780
3,954
Year Built
2010
2018
Crew Ratio
1:3.2
1:2.7
Space Ratio
33.2
33.8
Decks
—
—
Length
362m
323m
From Price
$764.91/pp
$490/pp
Comparison Verdict
Allure of the Seas is the significantly larger vessel at 225,282 GT — 69% more than Carnival Horizon's 133,500 GT. Built in 2018, Carnival Horizon is 8 years newer — an advantage for travellers seeking modern amenities and design. Carnival Horizon edges ahead in service with a passenger-to-crew ratio of 2.7:1, meaning more crew per guest.
| Category | Winner |
|---|---|
| Size | Allure of the Seas |
| Capacity | Allure of the Seas |
| Modernity | Carnival Horizon |
| Service | Carnival Horizon |
| Spaciousness | Carnival Horizon |
| Decks | Tie |
| Length | Allure of the Seas |
| Fleet Power | Allure of the Seas |
Bottom line: Allure of the Seas leads 4–3 across our categories — strongest in Size. Choose Allure of the Seas for overall superiority; pick Carnival Horizon if its strengths matter more to you.
Which Ship Is Right for You?
Choose Allure of the Seas if...
- Size matters to you (225,282 GT)
- More onboard variety (6,780 guests)
Choose Carnival Horizon if...
- You want the newer ship (built 2018, 8yr newer)
- Better service ratio (2.7:1 crew ratio)
- More space per guest (33.8 GT/pax)
- Save $274.91/person on sailings
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Deep Dive
Upcoming Sailings
Upcoming Sailings on Allure of the Seas
Upcoming Sailings on Carnival Horizon
Spots going fast$956/person
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Leaves in 12 days$490/person
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Leaves in 18 days$706/person
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Frequently Asked Questions
How is the comparison score calculated?
We compute scores across 8 categories using real spec data — gross tonnage, passenger capacity, crew capacity, year built, length, deck count, space ratio, and fleet power. Each category awards one point to the winning ship.
What is the space ratio and why does it matter?
Space ratio is gross tonnage divided by passenger capacity. A higher number means more space per guest. Luxury lines typically score above 40; mass-market ships often fall in the 30-40 range.
What does the passenger-to-crew ratio mean?
Passengers per crew member. Lower is better — more staff per guest means better service. Luxury lines aim below 2:1; large mainstream ships may be 3-4:1.
Are the prices shown accurate?
Prices are sourced from Cruisebound and reflect real-time availability. They may change based on cabin type, date, and demand. Click through to see the latest fares.
Can I compare more than two ships?
Yes — up to four ships. Use the search tool on the compare hub page to add additional ships.
How current is the ship data?
Specifications come from our database of 380+ vessels, revalidated every 5 minutes via ISR. The "Updated" timestamp shows when records were last modified.
