That wasn't always the case, but flying has become SUCH a massive pain in the backside. Mostly at the airport, but sometimes the flight itself (and mind you, I almost always fly in the front of the cabin). All the silly "security theater" and the (semi-)recent uncertainties about cancellations and so forth make the experience annoying.

In Japan, I usually take a train unless I'm really in a hurry. In the US, I'm mostly stuck with driving if I don't want to fly (so few rail passenger routes...).