I've been photographing air shows from time to time for 14 years now. In fact, my first trip overseas ever was to attend the 2002 Flying Legends show in England.
I didn't have to fly across the pond last weekend as the Blue Angels and a number of other interesting aircraft came to Sioux Falls. Rather than deal with the crowds, I decided to shoot the show from a hill about three miles from the airport. I tried this back in 2009 on one of the two days, and it worked fairly well for the larger aircraft.
I've developed some definite opinions about air shows, and I suppose they are tied to my photographic preferences. I like to get closeups of powerful planes in flight. I find big aircraft on the ground less interesting, and little aerobatic planes (airborne or not) even less so. I don't like being in a crowd when shooting air shows because (a) it's hard to carry my 500mm lens and tripod into the show particularly when backpacks are prohibited, and (b) even if I'm shooting handheld with the 400mm zoom, it's possible to bonk someone in the head as I'm trying to follow the planes. So I parked at the Southeast Vo-Tech and only had to carry my big lens and tripod about 10 feet. I missed out on the ground displays and the aerobatics by being further away, but I got some great shots of the B-17 Sentimental Journey and other planes as they came close, sometimes directly overhead. Click on the image to start the 14-image slide show.