The most popular way to get to the island is to fly from the UK.
There is a passenger ferry that currently runs from Mid March to October to the island from the Guernsey.
Flights can get booked up in the summer as the planes, whether direct from the UK or from the other islands, Planes take a maximum of 19 people.
There is currently only one airline that flies into the island, as follows:-
AURIGNY (pronounced aureeny) www.aurigny.com Tel: 01481 267267
Flights to Alderney direct from Southampton
Flights also from Manchester, Leeds Bradford, East Midlands, London Gatwick, Bristol and Exeter which connect to Alderney via Guernsey
Car parking is available at Southampton Airport, cheaper if you pre-book (www.southamptonairport.com). Allow a bit of extra time as you have to get a courtesy bus to the terminal
The train station is at Southampton airport so no need for taxi
Other airlines like Blue Islands fly into Guernsey and then you can buy flights with Aurigny from Guernsey to Alderney. If you choose to go this route it is a good idea to leave yourselves a couple of hours between connections in case of weather delays. You can also fly into Jersey but from Jersey you have to go via Guernsey to get to Alderney anyway.
A passenger ferry service runs a service between Alderney and Guernsey, book with Alderney Ferry Services.
This generally doesn't run in the Winter, but is commencing sailings from mid March this year.
If you are travelling to Alderney from outside of the Bailiwick of Guernsey it is recommended you take out travel insurance.