Airlines, via FAA rules, have very strict considerations as to where the "alternate" airport is. If the company did not define Newark as the alternate for JFK, which is 90% based on weather, then Boston would be a reasonable alternate
Airlines, via FAA rules, have very strict considerations as to where the "alternate" airport is. If the company did not define Newark as the alternate for JFK, which is 90% based on weather, then Boston would be a reasonable alternate