He's flying really fast, G. But I mis-estimated the flight time. Commercial flights take about 6 hours. I figure that AF 1 is faster; but not that much faster. Maybe five hours?
In any case, Trump can spend the time railing at the media and rage posting on his non-Truth Social. In between naps of course.
Hell, it's just slightly longer than one of his MANY rounds of golf.
As for security, lots of POTUS have gone to the Super Bowl. I don't suspect that this stadium is any more difficult to secure; unless of course someone stupidly thinks that the location in California is inherently more dangerous.