“Of course the American lack of volume control is always a problem when flying”
I’m not sure it is so much the volume, per se. I once asked a speech therapist why it was that if one was in, say, a rail carriage, one could hear Americans far more clearly than, say, Brits or French travellers, even if they were standing or sitting much further away. It was explained to me that the intonation of the accent, especially the syllable, dipthong and vowel sounds, lead to it travelling greater distances and seeming to be louder, when actually it isn’t (in terms of decibels).
Apparently there are certain other accents (Finnish, Dutch and South African, if I remember correctly) which have a similar effect, and others (I think most Latin languages and “BBC” English) which have the opposite characteristics.
This is not, by the way, an anti-American posting in any way! I guess the answer might be to fly BA, Air France, Iberia or TAP……. 😉