Side-by-side cruise ship comparison · Updated January 2026
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across 5 categories
Size
Based on gross tonnage and length
Capacity
Based on passengers and crew
Modernity
Based on year built
Service
Based on passenger-to-crew ratio (lower is better)
Spaciousness
Based on gross tonnage per passenger (higher is better)
Celebrity Flora
Celebrity Millennium
Gross Tonnage
Celebrity Flora
5,739 GT
Celebrity Millennium
91,000 GT
Length
Celebrity Flora
102 m
Celebrity Millennium
294 m
Beam
Celebrity Flora
18 m
Celebrity Millennium
32 m
Passengers
Celebrity Flora
100
Celebrity Millennium
2,158
Crew
Celebrity Flora
87
Celebrity Millennium
999
Decks
Celebrity Flora
—
Celebrity Millennium
—
Year Built
Celebrity Flora
2,019
Celebrity Millennium
2,000
Space Ratio
Celebrity Flora
57.4 GT/pax
Celebrity Millennium
42.2 GT/pax
Passenger:Crew Ratio
Celebrity Flora
1.15 :1
Celebrity Millennium
2.16 :1
| Specification | Celebrity Flora | Celebrity Millennium |
|---|---|---|
| Overview | ||
| Cruise Line | Celebrity Cruises | Celebrity Cruises |
| Class | Flora Class | Millennium Class |
| Status | active | active |
| Year Built | 2,019Winner | 2,000 |
| Dimensions | ||
| Gross Tonnage | 5,739 GT | 91,000 GTWinner |
| Length | 102 m | 294 mWinner |
| Beam | 18 m | 32 mWinner |
| Capacity | ||
| Passengers | 100 | 2,158Winner |
| Crew | 87 | 999Winner |
| Key Ratios | ||
| Space Ratio | 57.4 GT/paxWinner | 42.2 GT/pax |
| Passenger:Crew Ratio | 1.15:1Winner | 2.16:1 |
| Build | ||
| Builder | De Hoop | Chantiers de l'Atlantique |
| Flag | Ecuador | Malta |
| IMO Number | 9702415 | 9189393 |
Celebrity Millennium is the significantly larger vessel at 91,000 GT — 1486% more than Celebrity Flora's 5,739 GT. Celebrity Flora offers more personal space with a space ratio of 57.4 GT per passenger versus 42.2. Built in 2019, Celebrity Flora is 19 years newer — an advantage for travellers seeking modern amenities and design.
| Category | Winner |
|---|---|
| Size | Celebrity Millennium |
| Capacity | Celebrity Millennium |
| Modernity | Celebrity Flora |
| Service | Celebrity Flora |
| Spaciousness | Celebrity Flora |
Bottom line: Celebrity Flora wins more categories (3 vs 2), making it the stronger all-round choice based on current data.
Celebrity Flora
57 GT/pax means plenty of quiet space
1.1:1 passenger-crew ratio means exceptional service
Built in 2019 with modern facilities — great for a first cruise
Good range of onboard options
Celebrity Millennium
Well-suited for cruise newcomers
42 GT/pax means plenty of quiet space
Good range of onboard options
Good value for money
Free cancellation on most rooms
Bundle & save on your cruise trip
Medical, trip cancellation & luggage cover
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| Draft | 4.5 m | 8.4 mWinner |
| Decks | — | — |
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