uA,
Try "The Sky Beyond" Sir Gordon Taylor.
ISBN 0-553-23949-X. I rate it as one of the best descriptions of oceanic route development.
"Pathfinder" AVM DCT Bennett.
Again early oceanic flying, then a huge contribution to strategic bombing. The unfortunate story of BSAA isn`t here and it dissolves into a bit of a blimpish tirade, but you have to admire the man who was so driven he wrote " The Complete Air Navigator" on his honeymoon.
If you care to go back a further generation then Cecil Lewis`s "Sagittarius Rising" ISBN 0-14 00.4367 5 tells a good tale.
Just a personal thing, but much as I enjoy "Fate is the Hunter" and a couple of the other books, esp "The High and the Mighty", by the time I got a third of the way into "A Hostage to Fortune" I`d had enough of Earnie. I finished it but it didn`t improve.