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Quantum Class

Back-to-Back Cruises on Spectrum of the Seas

102back-to-backs
2home ports
6-16combined nights
$836from, per person

Every row below is a real pair of sailings on Spectrum of the Seas herself, where the second leg leaves the day the first one returns — so you stay aboard for 6 to 16 nights instead of flying home in between. There are 102 of them cached right now, out of Shanghai and Hong Kong, departing between Sep 19, 2026 and Apr 19, 2028. The most common combination is 9 nights (27 of them). Fares are the lowest cached interior all-in price per guest for both legs together, before any casino offer is applied.

Home portThe two legsDepartsNightsFrom (pp)
Shanghai Jeju Cruise · 4n
Busan Cruise · 4n
Sep 19, 2026
back Sep 27, 2026
8 $1,410
Shanghai Busan Cruise · 4n
Jeju Cruise · 4n
Sep 23, 2026
back Oct 1, 2026
8 $1,436
Shanghai Jeju Cruise · 4n
Nagasaki, Fukuoka & Jeju Cruise · 6n
Sep 27, 2026
back Oct 7, 2026
10 $2,538
Shanghai Nagasaki, Fukuoka & Jeju Cruise · 6n
Busan Cruise · 4n
Oct 1, 2026
back Oct 11, 2026
10 $2,302
Shanghai Busan Cruise · 4n
Kagoshima & Okinawa Cruise · 5n
Oct 7, 2026
back Oct 16, 2026
9 $1,236
Shanghai Kagoshima & Okinawa Cruise · 5n
Busan Cruise · 4n
Oct 11, 2026
back Oct 20, 2026
9 $1,265
Shanghai Busan Cruise · 4n
Okinawa Cruise · 4n
Oct 16, 2026
back Oct 24, 2026
8 $1,090
Shanghai Okinawa Cruise · 4n
Best Of Japan Cruise · 8n
Oct 20, 2026
back Nov 1, 2026
12 $2,048
Shanghai Best Of Japan Cruise · 8n
Jeju & Busan Cruise · 5n
Oct 24, 2026
back Nov 6, 2026
13 $2,218
Hong Kong Okinawa Cruise · 5n
Okinawa & Ishigaki Cruise · 5n
Nov 6, 2026
back Nov 16, 2026
10 $1,842
Hong Kong Okinawa & Ishigaki Cruise · 5n
Chan May Cruise · 4n
Nov 11, 2026
back Nov 20, 2026
9 $1,512
Hong Kong Chan May Cruise · 4n
Weekend Getaway Cruise · 2n
Nov 16, 2026
back Nov 22, 2026
6 $836
Hong Kong Weekend Getaway Cruise · 2n
Best Of Japan & South Korea · 9n
Nov 20, 2026
back Dec 1, 2026
11 $2,008
Hong Kong Best Of Japan & South Korea · 9n
Okinawa & Ishigaki Cruise · 5n
Nov 22, 2026
back Dec 6, 2026
14 $2,489
Hong Kong Okinawa & Ishigaki Cruise · 5n
Okinawa & Taipei Cruise · 5n
Dec 1, 2026
back Dec 11, 2026
10 $1,662
Hong Kong Okinawa & Taipei Cruise · 5n
Weekend Getaway Cruise · 2n
Dec 6, 2026
back Dec 13, 2026
7 $1,174
Hong Kong Weekend Getaway Cruise · 2n
Okinawa & Ishigaki Cruise · 5n
Dec 11, 2026
back Dec 18, 2026
7 $1,105
Hong Kong Okinawa & Ishigaki Cruise · 5n
Weekend Getaway Cruise · 2n
Dec 13, 2026
back Dec 20, 2026
7 $1,128
Hong Kong Weekend Getaway Cruise · 2n
Best Of Japan Holiday Cruise · 9n
Dec 18, 2026
back Dec 29, 2026
11 $2,080
Hong Kong Best Of Japan Holiday Cruise · 9n
Okinawa Cruise · 5n
Dec 20, 2026
back Jan 3, 2027
14 $2,745

Showing the first 20 of 102, soonest first. Inventory refreshes nightly. Open the planner and price these with your offers ›

Where Spectrum of the Seas runs back-to-backs

115sailings on Spectrum of the Seas we’re tracking right now — pair them into a back-to-back and spend your casino offers across them.Plan a voyage ›

Spectrum of the Seas specs

2019Entered service
168,666Gross tons
4,180Guests (dbl occ.)
16Decks

Known for

About the Quantum Class

The tech-forward class: the North Star observation capsule that lifts you 300 feet above the sea, RipCord by iFly skydiving, bumper cars in the SeaPlex, and robotic bartenders. Quantum ships are a favorite for Alaska and Asia.

◈ With legtolegcruises.com

Sail Spectrum of the Seas two weeks in a row

Spectrum of the Seas often alternates itineraries, so consecutive sailings visit different ports without you ever leaving the ship. legtolegcruises.com finds those back-to-backs and assigns your Club Royale offers to the legs where they save the most.

Plan a back-to-back ›

Want the other ships too? Our back-to-back cruise pages list every pair of Royal Caribbean sailings that currently connect, home port by home port — including the ones that switch ship between legs, which this page leaves out.

See Spectrum of the Seas on Royal Caribbean’s official site › for deck plans, staterooms, photos, and current itineraries.

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Pick a home port, pick your dates, and let legtolegcruises.com do the back-to-back math.

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Specifications are approximate and shown at the class level; individual ships vary. The legtolegcruises.com Fleet is independent editorial and is not affiliated with Royal Caribbean International. Confirm ship details, itineraries, and offers with Royal Caribbean before booking.