I think the movie should be somewhere between late 80's and early 90's. I watched this movie in my friend's netflix account.
The guy has three sons and a daughter, and one son would be in jail. They have a house just besides the airport.
I think the movie is about the guy trying to save the house from the airport authorities who wants the land for airport expansion. I also remember a scene where the family would be having dinner together.
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Its definitely The Castle (film).
From IMDb plot summary
A Melbourne family is very happy living where they do, near the Melbourne airport (according to Jane Kennedy, it's "practically their back yard"). However, they are forced to leave their beloved home, by the Government and airport authorities. 'The Castle' is the story of how they fight to remain in their house, taking their case as far as the High Court.
I believe this would be the Australian film "The Castle". Many of your plot elements match, except for the son in jail.
