If you look at this (admittedly poor) map you see that Charles Lindbergh appears to skirt the English coast on his way to Paris but never go into English "airspace" (not sure such a concept existed at the time?). Were there diplomatic reasons? Or was Lindbergh not welcome in England for some reason?
That map would appear to be misleading. A much more detailed website about the flight, charleslindbergh.com, reckons that he flew over England. He said he'd flown a compass course from Cape Valencia and Dingle Bay, where he'd fixed an accurate position, to Paris.