I would say the most viable solution is to not subject hundreds of thousands of people to an incredible amount of noise pollution, so that a couple of playboys get to skip a taxi ride to the airport.
Private-transport helicopters or equivalents have no place in cities. The gain is in no way worth the cost.
To complement that: they are only viable because they are heavily subsidized by the suffering of city dwellers. If you placed the cost of air pollution on the bill, they'd be much more expensive.
Its not just unreasonable because the person flying gets less utility that is otherwise lost. It is also an unfair form of theft.