Across the country, big jets are disappearing -- nudged shoved aside by the little guys, which are cheaper to operate and don't require as many butts to fill seats.
The number of empty seats falls, and revenue per available seat-mile (RASM) goes up. It's pretty straightforward. But, for crowded flights, this could leave a few people stuck without their preferred routes. The alternative, of course, is an unsustainable status quo, in which a few passengers remain happy ... until the airline folds.
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