Spots going fastSilver Spirit vs Viking Octantis
Side-by-side cruise ship comparison · Updated January 2026
Silver Spirit is the significantly larger vessel at 39,519 GT — 32% more than Viking Octantis's 30,000 GT. Viking Octantis offers more personal space with a space ratio of 79.4 GT per passenger versus 65.0. Built in 2022, Viking Octantis is 13 years newer — an advantage for travellers seeking modern amenities and design.
Score: 4 – 3
Quick Compare
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Category
Silver Spirit
Viking Octantis
Size
39,519 GT
30,000 GT
Passengers
608
378
Year Built
2009
2022
Crew Ratio
1:1.6
1:1.5
Space Ratio
65.0
79.4
Decks
—
—
Length
210m
205m
From Price
$8,200/pp
$13,195/pp
Comparison Verdict
Silver Spirit is the significantly larger vessel at 39,519 GT — 32% more than Viking Octantis's 30,000 GT. Viking Octantis offers more personal space with a space ratio of 79.4 GT per passenger versus 65.0. Built in 2022, Viking Octantis is 13 years newer — an advantage for travellers seeking modern amenities and design.
| Category | Winner |
|---|---|
| Size | Silver Spirit |
| Capacity | Silver Spirit |
| Modernity | Viking Octantis |
| Service | Viking Octantis |
| Spaciousness | Viking Octantis |
| Decks | Tie |
| Length | Silver Spirit |
| Fleet Power | Silver Spirit |
Bottom line: Silver Spirit leads 4–3 across our categories — strongest in Size. Choose Silver Spirit for overall superiority; pick Viking Octantis if its strengths matter more to you.
Which Ship Is Right for You?
Choose Silver Spirit if...
- Size matters to you (39,519 GT)
- More onboard variety (608 guests)
- Save $4,995/person on sailings
Choose Viking Octantis if...
- You want the newer ship (built 2022, 13yr newer)
- Better service ratio (1.5:1 crew ratio)
- More space per guest (79.4 GT/pax)
You've compared the ships. Now see what they cost.
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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.
