Milleniumpictures

I have booked with Royal Caribbean directly in the UK. I have booked my flights with the airline separately.
Air2Sea has never given the best price or options. And as i say I fly into airport 3 days before cruise day.
The arrival area is far from exclusive to those arriving I have watched videos of Marco Polo airport and seen other operators direct people to bus pick up point where coaches are waiting. This is done much in the same way as most European holidays I have taken.
Because we don't want to carry our cruise luggage all around the lagoon in the days prior we will take advantage of the left luggage facility in the arrivals area. 
This FAQ explains that transfers are available to anyone.
UK - https://www.royalcaribbean.com/gbr/en/faq/questions/port-arrival-travel-options
USA - https://www.royalcaribbean.com/faq/questions/port-arrival-travel-options
As I said their booking system demanded a flight number arriving: 'the day of departure ' before it would add transfers to booking.

Hello I booked the bus with Royal Caribbean but am also going to be in Venice before and will go back to the airport the morning of departure to get the shuttle. 
The booking sytem they have will not let them book a shuttle without a flight number and they explained to me it was to ensure the the flight would not arrive later than the time it takes for a shuttle to make the last trip before the ship departs.
if you get a flight number from google flights arriving the morning of departure you could call up and explain your situation and book they just check your name when you get there.

The Invicta Quartz Watch movements are made in Japan where even far pricier brands are. And Invicta was bought out by a Hollywood Florida company. I have six that i am very happy with that i bought on the Invicta website invictastores.com. Just don't believe all the retail prices shown. But we just got back from doing a four and five night back to backs on Brilliance Of The Seas where i spotted a watch in the shops i had been looking for quite some time; the Invicta Pro Diver which was out of stock everywhere and out of production. Well the price tag read $995 which i knew was a joke since Invicta retailed it as a $300 watch that i could have gotten on their website for $80 if available. But wanting that big thick, heavy clunker of a watch i shelled out $156. so I'm happy. Just would suggest if you see a watch your interested in on any cruise ship you check it out on line first before purchasing. But of course Royal is probably charging you for that wifi.

Hello I booked the bus with Royal Caribbean but am also going to be in Venice before and will go back to the airport the morning of departure to get the shuttle. 
The booking sytem they have will not let them book a shuttle without a flight number and they explained to me it was to ensure the the flight would not arrive later than the time it takes for a shuttle to make the last trip before the ship departs.
if you get a flight number from google flights arriving the morning of departure you could call up and explain your situation and book they just check your name when you get there.

Ships are not going to Venice anymore.  Transfers are available.  Ravenna is the city, Porto Corsini the port near the city.  (Analogous to Civitavecchia (the port) and Rome situation).

Hello I booked the bus with Royal Caribbean but am also going to be in Venice before and will go back to the airport the morning of departure to get the shuttle. 
The booking sytem they have will not let them book a shuttle without a flight number and they explained to me it was to ensure the the flight would not arrive later than the time it takes for a shuttle to make the last trip before the ship departs.
if you get a flight number from google flights arriving the morning of departure you could call up and explain your situation and book they just check your name when you get there.