[rdl]

Turboprops (and some pistons) are way more efficient at low altitudes. For a short route, most of your time is spent a lot altitudes, so the prop is going to be a lot more efficient. Saves fuel, makes it cheaper to fly, thus lower fares.

Single engine aircraft have been shown to be essentially as safe as twins, at least on light aircraft like these. Engines very rarely fail, and a twin engine light craft failing often fails in a way where the plane still is unflyable, or the pilots of those aircraft aren't able to recover (more of an issue for private single pilots vs. a charter with two). There are some ways where it doesn't matter how many engines the aircraft has, and the twin engines add complexity which increase the odds of problems (which generally cause ground stops or non-crash incidents, but which could possibly cause crashes). Twins also cost more per hour to operate (in fuel, and especially maintenance), and cost more to buy. Inexperienced pilots also manage to crash aircraft with two working engines by doing stupid things with the engines, where they may not in a single, although this is less of an issue with FADEC I think.

For a long flight over the ocean, a big twin turbofan ETOPS certified or maybe even a trijet or 4-engine aircraft is the way to go, but for short domestic flights over land, a single (turboprop, ideally, but even some pistons) would be my choice. My dream aircraft is a CH801 (kit) with a diesel engine (super slow, ~$100-150k), or a Cessna Grand Caravan ($300k and up to low millions if new and highly outfitted).

[cscheid]

I remember reading (~10-15 years ago?) that although the general public's impression was that propellers make planes unreliable, it was actually turbines that made airplane engines reliable (which means you really want turboprops rather than piston-propeller aircraft)

Have airplane piston engines become as reliable as turboprops?