Do you want to know how much legroom there will be in on your flight?
What mobility equipment can you bring on board?
What options are there for boarding the plane?
The information has a United Kingdom perspective - if you are travelling to another continent, accessibility laws are likely to be different which may impact on your flight and other aspects of your journey. Always inform your airline of your requirements at least 48 hours in advance of your flight, when travelling from any European Airport.