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American Constellation vs National Geographic Venture

Side-by-side cruise ship comparison · Updated February 2026

National Geographic Venture is the larger vessel at 3,135 GT, 5% more than American Constellation's 3,000 GT. National Geographic Venture offers more personal space with a space ratio of 31.4 GT per passenger versus 17.1. National Geographic Venture edges ahead in service with a passenger-to-crew ratio of 1.9:1, meaning more crew per guest.

Score: 25

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Category
American Constellation
National Geographic Venture
Size
3,000 GT
3,135 GT
Passengers
175
100
Year Built
2017
2018
Crew Ratio
1:3.0
1:1.9
Space Ratio
17.1
31.4
Decks
Length
64m
73m

Comparison Verdict

National Geographic Venture is the larger vessel at 3,135 GT, 5% more than American Constellation's 3,000 GT. National Geographic Venture offers more personal space with a space ratio of 31.4 GT per passenger versus 17.1. National Geographic Venture edges ahead in service with a passenger-to-crew ratio of 1.9:1, meaning more crew per guest.

CategoryWinner
SizeNational Geographic Venture
CapacityAmerican Constellation
ModernityNational Geographic Venture
ServiceNational Geographic Venture
SpaciousnessNational Geographic Venture
DecksTie
LengthNational Geographic Venture
Fleet PowerAmerican Constellation

Bottom line: National Geographic Venture leads 5–2 across our categories, strongest in Size. Choose National Geographic Venture for overall superiority; pick American Constellation if Capacity matter more to you.

Which Ship Is Right for You?

Choose American Constellation if...

  • More onboard variety (175 guests)
Book American Constellation

Choose National Geographic Venture if...

  • You want the newer ship (built 2018, 1yr newer)
  • Size matters to you (3,135 GT)
  • Better service ratio (1.9:1 crew ratio)
  • More space per guest (31.4 GT/pax)
Book Geographic Venture

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American Constellation

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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.