the confusion over API is widespread and changes. Basically some countries require it, some will do in the future and some don't want it.

This leads to a problem for the airlines, they can install intelligent systems that work properly and sort out those that need to register, whilst at the same time giving their staff proper training. Or they can simply tell all the passengers to register even if there is no legal need for it. Guess which they are most likely to do??

Last year easyjet announced that API was now required for flights from Germany to the UK. I was booked on a flight from Germany to Uk with TUIfly (German sister company to Thomson) but hadn't been asked for any details. When I asked them they at first didn't even know what it was (!) before saying that they definately didn't do it. Just to double check I read Luthansa's website, they did know what it was but only did it for the USA and a couple of other countries. So easyjet were telling porkies to make life simpler for themselves.

So whether you need to register to fly to a country with a certain airline is as much to to do with the airline as the country involved, don't assume that because someone has flown there with a different airline the same rules will apply to you.