General Tips for Aerial Photography
To get the best images when using a point-and-shoot, be sure to use only optical zoom and not digital to prevent shakiness caused by the buzzing aircraft.
This usually takes some practice before you can judge when the daylight will be optimal to shoot the object in the way you like.
A wide angle fast lens (f/11 to f/2.8) will help keep the ISO to 100 or 200, thereby increasing the quality of even those photographs which have movement.
Also, your pilot will be able to help you plan your excursion, and can advise you about the atmospheric conditions to expect.
Reflections While Taking Aerial Shots Through Windows
Almost all airplanes have the issue of windows which are either grimy or reflect excessive light, making it difficult to get a good shot. Your best option would be to ask permission and clean the windows before the flight.
Also, to reduce glare, make sure that the lens of your camera is as close as possible to the window. Alternately, for images without any obstructions, you can use helicopters with open doors.
Using Drones For Aerial Photographs
They give good stability and even a good digital downlink, which is important for first-person views. Look for cameras with professional gimbals if you can afford it.
This will help you to find the best view and get some really beautiful images. Just remember, greater height can give wider views, but that does not necessarily translate to great photos.