"Quick question:
Do those 2012 ASM's include seats on US regional carriers, and not just mainline?
If so, that would explain more ASM's with less mainline airframes."
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Poor research/fact checking on my part. 'USAIR' annual report was actually the AWA annual report and not the combined results. It looks like US alone was in the 50 ASM range.
Regional feed is 14-15 ASM per year, year after year, or approx. 20% of mainline's ASM.
Mainline was 82 in 2005, dropped to 70 ASM, back up to 77 ASM last year.
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