We just did this cruise back in September, 2023. Wifi was very good through the whole cruise.
I found the White Pass & Yukon train to be my favorite excursion on the cruise.
Most of the flights are in the afternoon out of Anchorage. Our flight was around 2 pm back in October. We left around 8:00 am as there was construction between Seward and Anchorage. We were at the airport about 3 hours before our flight.
We stayed in London for a couple extra days at the end of our cruise. We did a Beatles Black Cab tour that was just my wife and I. Tour was about 5 hours and the driver took us to all the main locations and many out of the way ones. We booked this through Viator.
We decided to not do the extensions at the end of our cruise as it seemed to expensive. We are ending up Anchorage. Instead, we are going to do another week at Lake Geneva and the Wisconsin Dells.