Parking at Liverpool airport is very fairly priced. The two main long stay car parks are within easy walking distance - between 5 and 10 minutes walk of the terminal depending on how full they are. The pick up/drop off - very short stay car park has easy access to the terminal and is convenient for a quick passenger. The short stay multi story is convenient for pick ups and short trips. The only downside is that there is no covered walk way across the road to the terminal. I have never experienced a problem with parking and its always been quite easy to find a space. The one time when I had a mix up over parking arrival/departure times the administration were very helpful in sorting out the problem. I recommend pre-booking which saves money and speeds up entry and exit through the barriers - especially if you loose your ticket as I did on my last trip.