I've been looking online for return flights from Istanbul, and I have only found Pegasus and Turkish Air (and Anadolu, but that is part of Turkish Air, right?).
Are there any other airlines between Istanbul and Cappadocia? We are pretty flexible - we can leave from any airport in Istanbul, and we can fly into either Kayseri or Nevsehir, since we are renting a car. But from reading on a few websites about Cappadocia, it sounded like there may be other airlines that offer flights between those two places as well.
The cheapest return tickets I can find are $102, which seems too high!