By using small planes they can fly from minor airports (and city center STOL fields) or from the FOB section of major airports That means faster checkin, quic

By using small planes they can fly from minor airports (and city center STOL fields) or from the FOB section of major airports That means faster checkin, quick TSA and no screaming kids. A few airlines have failed trying to do this on transatlantic routes because the airlines/airports have a strangle hold on the big airports. The major airlines don't like competition and the airports don't like their richest customers speeding through without the opportunity to spend that 4hour checkin provides.