Nux said it. Airships are much slower and much more easily affected by weather. I've been in one recently and it's an awesome ride. There is a review in the trip reports sections of FT that documents a ride in I believe Switzerland. It's a great way to travel if you have the time, flexibility & money.
Helicopters are great too but they're pricy and highly affected by weather. I used miles years ago to book a helicopter flight from Manhattan to EWR during a really cheap promotion. The day came for my ride and because of high winds & low cloud cover they canceled and sent me a car service instead. I did fight and got most of my miles back too since 175$ service isn't quite comparable to a 60$ service.