At interview you will be asked to explain what you did between leaving school and the present day. It would be very difficult to conceal an abandoned degree course - and lying is not an option. Therefore you need to come up with a very convincing explanation of why you could not commit to your degree course, and evidence of lack of commitment does not go down well at interview!
Nevertheless, abandoning a degree course is not the end of the world as long as it is done for very good reasons. What those reasons might be is an open-ended question, but there are plenty of acceptable ones. However, 'I hate university' isn't really one of them, and is unlikely to convince anyone - least of all anyone who went to university and had a great time! It sounds too much like a 13-year-old's protestations of 'I hate school' when what he really means is he doesn't want to get out of his warm bed and put in a bit of effort - and that's how you're coming across.
Think carefully about what you're going to do. There are more options than you gave us, and one important one which you left out is changing your degree course. You don't say what course you're doing, so it's difficult to advise you what else might be worth considering. A year out at this stage is probably a cop-out. You'll probably not go back to uni, and you'll delay getting into anything productive for another year. 'Going to earn money until you can start a flying course' is too wishy-washy. You need to have a plan that encapsulates how much money you need, the timescale for obtaining it, and exactly how you're going to go about getting it.
You have a lot to think about, and probably the first thing is growing up a bit and taking responsibility for yourself and your future.
Scroggs