All excellent choices and don't forget "Hell's Angels", the best of the bunch. When I first heard about "Tora!Tora!Tora!" coming out back in the 70's, I thought it was about someone's Bar Mitzvah.I'm really impressed with yor knowledge of Cancon films. "For the Moment" shot and produced in Manitoba, was the first feature film about the BCATP program. It was real short on flying scenes because of it's low budget and it's only memorable because it starred the as yet unknown Russel Crowe in one of his first films as an Australian student pilot training in Canada.
"Captains of the Clouds" is one of my all time favorites because of that great cast, the story of Canadian bush pilots, superb flying scenes and those fabulous floatplanes--Norseman, Bellanca, Fokker Universal, etc. And of course, the excitement of seeing the real Billy Bishop in the movie shot at Uplands AFB, now Ottawa International.
Here's another Cancon title for you- The Arrow, a very good 1997 television miniseries(also shot in Manitoba) about the incredible true story(to a certain extent) of the 1950's development and demise of the world's most advanced(even by todays standards) fighter interceptor, the Avro Arrow. Starring my old friend Dan Ackroyd(thats another true story for another time) as the president of Avro Canada. I always loved the tagline on the one sheet- the poster("The right stuff...the wrong time") The greatest irony of the Arrow program was that upon cancellation in 1959, so many talented Canadian aeronautical engineers and others were scooped up by NASA where they would work on the Apollo program and the Shuttle.
Full disclosure--I was involved in The Arrow, even have a credit in the end credits.