Spots going fastSeabourn Quest vs Viking Octantis
Side-by-side cruise ship comparison · Updated January 2026
Seabourn Quest is the larger vessel at 32,346 GT — 8% 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 70.6. Built in 2022, Viking Octantis is 11 years newer — an advantage for travellers seeking modern amenities and design.
Score: 3 – 4
Quick Compare
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Category
Seabourn Quest
Viking Octantis
Size
32,346 GT
30,000 GT
Passengers
458
378
Year Built
2011
2022
Crew Ratio
1:1.4
1:1.5
Space Ratio
70.6
79.4
Decks
—
—
Length
198m
205m
From Price
$6,198/pp
$13,195/pp
Comparison Verdict
Seabourn Quest is the larger vessel at 32,346 GT — 8% 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 70.6. Built in 2022, Viking Octantis is 11 years newer — an advantage for travellers seeking modern amenities and design.
| Category | Winner |
|---|---|
| Size | Viking Octantis |
| Capacity | Seabourn Quest |
| Modernity | Viking Octantis |
| Service | Seabourn Quest |
| Spaciousness | Viking Octantis |
| Decks | Tie |
| Length | Viking Octantis |
| Fleet Power | Seabourn Quest |
Bottom line: Viking Octantis leads 4–3 across our categories — strongest in Size. Choose Viking Octantis for overall superiority; pick Seabourn Quest if Capacity matter more to you.
Which Ship Is Right for You?
Choose Seabourn Quest if...
- Size matters to you (32,346 GT)
- More onboard variety (458 guests)
- Better service ratio (1.4:1 crew ratio)
- Save $6,997/person on sailings
Choose Viking Octantis if...
- You want the newer ship (built 2022, 11yr newer)
- More space per guest (79.4 GT/pax)
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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.
