You could be arriving in London not on a plane.
You may come by train (eg from Europe), boat or coach.
Trains
The central part of London has mostly no train service. This is true for many other cities too. The trains arrive at a terminus station and you continue your journey by taxi, bus, tube, walk…
On the next many short blogs we will briefly detail all the main stations and why you might end up there, and, of course, how to get away from them to somewhere nicer.
Coach
Victoria Coach Station is the central hub for coaches in London.
Last time we went was years ago and it was shabby and smelly, but we gather it is nicer now.
Coaches come from all parts of the country and from Europe. Most stop inside but some do go from outside.
The coach station has no underground stop. You have to go outside, cross a couple of roads and get to Victoria train station. It’s not far, but a task if you have heavy bags. When we have had to do it it has always rained.
There are red buses available (11, 44, 170, 211, C1, C10, N11 and N44 stop outside), and a taxi is definitely a good choice.
Some coach routes into London have stops along the way which may be more helpful for you. If you book in advance, look at the route to decide what you need.
Other coach companies also use Victoria Coach Station, including Megabus and Flixbus.