Spots going fast$2,710/person$301/night
View Deal →Celebrity Infinity vs MSC Sinfonia
Side-by-side cruise ship comparison · Updated January 2026
Celebrity Infinity is the significantly larger vessel at 91,000 GT, 39% more than MSC Sinfonia's 65,591 GT. Celebrity Infinity offers more personal space with a space ratio of 41.9 GT per passenger versus 30.5. Celebrity Infinity edges ahead in service with a passenger-to-crew ratio of 2.2:1, meaning more crew per guest.
Score: 6 – 1
Quick Compare
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Category
Celebrity Infinity
MSC Sinfonia
Size
91,000 GT
65,591 GT
Passengers
2,170
2,150
Year Built
2001
2002
Crew Ratio
1:2.2
1:3.0
Space Ratio
41.9
30.5
Decks
—
—
Length
294m
275m
From Price
$1,760.33/pp
$1,019.79/pp
Comparison Verdict
Celebrity Infinity is the significantly larger vessel at 91,000 GT, 39% more than MSC Sinfonia's 65,591 GT. Celebrity Infinity offers more personal space with a space ratio of 41.9 GT per passenger versus 30.5. Celebrity Infinity edges ahead in service with a passenger-to-crew ratio of 2.2:1, meaning more crew per guest.
| Category | Winner |
|---|---|
| Size | Celebrity Infinity |
| Capacity | Celebrity Infinity |
| Modernity | MSC Sinfonia |
| Service | Celebrity Infinity |
| Spaciousness | Celebrity Infinity |
| Decks | Tie |
| Length | Celebrity Infinity |
| Fleet Power | Celebrity Infinity |
Bottom line: Celebrity Infinity leads 6–1 across our categories, strongest in Size. Choose Celebrity Infinity for overall superiority; pick MSC Sinfonia if its strengths matter more to you.
Which Ship Is Right for You?
Choose Celebrity Infinity if...
- Size matters to you (91,000 GT)
- More onboard variety (2,170 guests)
- Better service ratio (2.2:1 crew ratio)
- More space per guest (41.9 GT/pax)
Choose MSC Sinfonia if...
- You want the newer ship (built 2002, 1yr newer)
- Save $740.54/person on sailings
You've compared the ships. Now see what they cost.
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Deep Dive
Upcoming Sailings
Upcoming Sailings on Celebrity Infinity
Spots going fast
Leaves in 16 days$1,760/person$196/night
View Deal →
Leaves in 25 days$3,220/person$322/night
View Deal →Upcoming Sailings on MSC Sinfonia
Spots going fast7 Night Mediterranean - Eastern Cruise
MSC Cruises • MSC Sinfonia
Sep 12, 2026 · 7 nights
Mediterranean
$1,020/person$146/night
View Deal →Spots going fast7 Night Mediterranean - Eastern Cruise
MSC Cruises • MSC Sinfonia
Sep 15, 2026 · 7 nights
Mediterranean
$1,970/person$281/night
View Deal →Leaves in 9 days7 Night Mediterranean - Eastern Cruise
MSC Cruises • MSC Sinfonia
Sep 19, 2026 · 7 nights
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$1,293/person$185/night
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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.
