The most common for regular people would be cruise ships, but they're ocean-bound. Airships like this are less common.

[Didn't the Warriors of Hope set up base aboard an Airship, now that she thought about it? What had become of them...?

Aerith's smile certainly had a way of brightening up the room- quite the contrast to her own dour demeanour.]

Can't say I've spent time on one. They're not really used in combat operations.