Airliner manufacturing isn't low margin, by far. Airbus reported EBIT €5.8bn on €64bn revenues for 2018. 9% profitability is pretty good for durable goods company.
Airlines aren't all exactly on paper thin margins. Southwest operates at about 15% margin
Apple, the posterchild of high margins, reported profits of $14bn on $62bn revenues for Q4 2018... that's 22%.
If you want low margins, look at retailers.
Apple, the posterchild of high margins, reported profits of $14bn on $62bn revenues for Q4 2018... that's 22%. If you want low margins, look at retailers.