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By Bjorn Fehrm

March 7, 2024, © Leeham News: Over the last decades, the choice of domestic market airliners has gone from the typical 120-seater to today 200 seats or more. We will look into what drives these decisions and where the cross-over points are from, say, an Airbus A319 to A320 and then to A321. We will limit the investigation to the Airbus range as the Boeing 737 MAX range has still not their MAX 7 and MAX 10 in service.

We will use our Airliner Performance and Cost Model (APCM) to model typical sectors and investigate what load factors favor a switch.

Summary:

• The typical domestic cabins have gone from 120 to 150 seats to now 200 seats or above.
• As airliner types grow, their trip costs increase. At what load factors can you motivate an A321 instead of an A320?