September 17, 2026
16-Night Hawaii Cruise
Departing from San Francisco
From
$1,999
Price / day
$125
Ruby Princess|Sky Princess
Ruby Princess vs Sky Princess
Compare ship age, size, passenger capacity, itineraries and upcoming cruise prices.
Ruby Princess
Princess Cruises
Check prices on CruiseDirectVS
Newer Ship
Sky Princess
Built in 2019
11 years newer
Lower Price Per Day
Ruby Princess
$100 / day
$80 less per day
More Spacious Ship
Sky Princess
39.6 GT per guest
Gross tonnage divided by passenger capacity
Ruby Princess vs Sky Princess: Quick Comparison
Sky Princess is the newer ship in this comparison. Built in 2019, it is 11 years newer than Ruby Princess, which entered service in 2008. Sky Princess is approximately 28% larger by gross tonnage at 145,000 GT. Sky Princess also carries 580 more passengers. Ruby Princess has upcoming sailings in Hawaii, while Sky Princess has sailings in Europe and TransAtlantics. Based on the upcoming cruises currently displayed, Ruby Princess has the lower average starting price per day. The sailings shown cover different itineraries, so the price per day figures are not a like-for-like comparison. Cruise fares vary significantly by itinerary, departure date and cabin availability, so any price difference should be treated as a snapshot rather than a permanent gap.
Ship Comparison
| Spec | Ruby Princess | Sky Princess |
|---|---|---|
| Year Built | 2008 | 2019Newer |
| Gross Tonnage | 113,561 GT | 145,000 GT |
| Passenger Capacity | 3,080 | 3,660 |
| Space per Passenger | 36.9 GT | 39.6 GT |
| Length | 288.59 m | 330 m |
| Decks | — | — |
| Cabins | — | — |
Key Differences: Ruby Princess vs Sky Princess
Age
Sky Princess was built in 2019, making it 11 years newer than Ruby Princess, which was built in 2008.
Size
At 145,000 GT, Sky Princess is approximately 28% larger by gross tonnage than Ruby Princess at 113,561 GT.
Passenger capacity
Sky Princess carries up to 3,660 passengers compared with 3,080 aboard Ruby Princess, a difference of 580 passengers.
Passenger space
Sky Princess offers more space per passenger: 39.6 GT per guest, compared with 36.9 aboard Ruby Princess. A higher passenger space ratio generally means less crowding in public areas.
Itineraries
The upcoming sailings shown for Ruby Princess (Hawaii) and Sky Princess (Europe and TransAtlantics) currently cover different regions or departure ports.
Price
Among the upcoming sailings currently displayed, Ruby Princess has the lower average starting price per day at $100 per day.
Compare Ports of Call
Ruby Princess
Hawaiian Islands
- Departure Port
- San Francisco
- Region
- Hawaii
- Nights
- 16
- Round Trip
- Yes
- Day 1 · Sep 17, 2026San Francisco
- Day 2 · Sep 18, 2026At Sea
- Day 3 · Sep 19, 2026At Sea
- Day 4 · Sep 20, 2026At Sea
- Day 5 · Sep 21, 2026At Sea
- Day 6 · Sep 22, 2026Kauai
- Day 7 · Sep 23, 2026Honolulu
- Day 8 · Sep 24, 2026Kona
- Day 9 · Sep 25, 2026Kahului
- Day 10 · Sep 26, 2026At Sea
- Day 11 · Sep 27, 2026At Sea
- Day 12 · Sep 28, 2026At Sea
- Day 13 · Sep 29, 2026At Sea
- Day 14 · Sep 30, 2026At Sea
- Day 15 · Oct 1, 2026Ensenada
- Day 16 · Oct 2, 2026At Sea
- Day 17 · Oct 3, 2026San Francisco
Dates are estimates based on the published departure date.
Sky Princess
Oktoberfest European Capitals
- Departure Port
- Southampton
- Region
- Europe
- Nights
- 14
- Round Trip
- Yes
- Day 1 · Sep 26, 2026Southampton
- Day 2 · Sep 27, 2026Le Havre
- Day 3 · Sep 28, 2026Zeebrugge
- Day 4 · Sep 29, 2026Rotterdam
- Day 5 · Sep 30, 2026At Sea
- Day 6 · Oct 1, 2026Skagen
- Day 7 · Oct 2, 2026Copenhagen
- Day 8 · Oct 3, 2026Aarhus
- Day 9 · Oct 4, 2026Kristiansand
- Day 10 · Oct 5, 2026Oslo
- Day 11 · Oct 6, 2026At Sea
- Day 12 · Oct 7, 2026Hamburg
- Day 13 · Oct 8, 2026Hamburg
- Day 14 · Oct 9, 2026At Sea
- Day 15 · Oct 10, 2026Southampton
Dates are estimates based on the published departure date.
Upcoming Cruises & Prices
Ruby Princess
November 8, 2026
16-Night Hawaii Cruise
Departing from San Francisco
From
$1,201
Price / day
$75
Sky Princess
September 26, 2026
14-Night Europe Cruise
Departing from Southampton
From
$3,204
Price / day
$229
November 5, 2026
15-Night TransAtlantics Cruise
Departing from Southampton
From
$1,959
Price / day
$131
Prices shown are starting fares and may change.
Which Ship Is Cheaper?
Ruby Princess
Average
$100 / day
VS
Sky Princess
Average
$180 / day
Ruby Princess has the lower price per day among the sailings shown
$100/day vs $180/day
About $80 less per day
This comparison is based on the upcoming sailings currently shown and may not represent like-for-like itineraries.
Cruise prices vary by departure date, itinerary, cabin type and availability.
Which Ship Should You Choose?
Choose Ruby Princess if…
- You prefer the ship with the lower passenger capacity.
- You want to sail in Hawaii.
- Departing from San Francisco works for your plans.
- The lower price per day among the sailings currently shown matters to you.
- You do not place as much importance on sailing on a newer ship than Sky Princess.
Choose Sky Princess if…
- You prefer the newer ship.
- You prefer the larger ship by gross tonnage.
- You do not mind sailing on a ship with a higher passenger capacity.
- You value having more space per passenger (higher GT-per-guest ratio).
- You want to sail in Europe and TransAtlantics.
- Departing from Southampton works for your plans.
Ruby Princess vs Sky Princess: Final Comparison Summary
Newer
Sky Princess
Built in 2019
11 years newer
Bigger
Sky Princess
145,000 GT
28% larger by gross tonnage
Lower Price Per Day
Ruby Princess
$100 / day
About $80 less per day
- Sky Princess is 11 years newer.
- Sky Princess is 28% larger by gross tonnage.
- Sky Princess carries 580 more passengers.
- Sky Princess offers more space per passenger (39.6 GT per guest).
Frequently Asked Questions
Which is newer, Ruby Princess or Sky Princess?
Sky Princess is newer. It was built in 2019, while Ruby Princess was built in 2008, making Sky Princess 11 years newer.
Which is bigger, Ruby Princess or Sky Princess?
Sky Princess is larger by gross tonnage. It measures approximately 145,000 GT compared with Ruby Princess at 113,561 GT.
Which ship carries more passengers?
Sky Princess has a passenger capacity of approximately 3,660, compared with 3,080 for Ruby Princess.
Which ship is more spacious, Ruby Princess or Sky Princess?
Sky Princess has the higher passenger space ratio at 39.6 GT per passenger, versus 36.9 for Ruby Princess. The ratio is gross tonnage divided by passenger capacity; a higher number means more ship space per guest.
Which ship is cheaper, Ruby Princess or Sky Princess?
Among the upcoming sailings currently displayed, Ruby Princess has the lower average starting price per day at $100 per day versus $180 per day. Fares vary by itinerary, departure date, cabin type and availability.
Where does Ruby Princess sail?
The upcoming Ruby Princess sailings currently listed cover Hawaii, departing from San Francisco.
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