In helping to reduce seat-mile costs, short-haul LCCs/ULCCs revolve around high aircraft utilization, both block hours per day (12+ hours) and sectors per day (six+). The lower seat-mile costs enable and sustain the lower fares (and high load factors) for which they’re famous. One thing impacting utilization is sector length. This partly explains why Wizz Air is keen to use 239-seat A321neos, according to the ULCC’s Evelin Jeckel, Chief Network Officer, who spoke at CONNECT Route…