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Sunho wrote:

BTW, what about routes that generate at most 30 passengers per day?
Simply not worth serving?

A flight every two days would seem to maintain the 60ish number of
passengers -- Not all will be quite as willing to reschedule, but odds
are that many/most will.

There isn't likely to be a ton of competition between airlines if there
isn't even enough passengers to fill a daily flight.