Lindsay Lohan -- Officially SCREWED ... She'll be VERY LATE FOR TRIAL

Lindsay Lohan will absolutely, positively be LATE for her trial TMZ has learned ... and the judge could issue a bench warrant for her arrest on her first day of trial.

We've learned ... the private jet that is carrying the infamous defendant is scheduled to land at 8:11 AM in Van Nuys, 20 miles from the courthouse. That means at the time of touchdown -- assuming she lands on time -- she will have 19 minutes to get to the courthouse in the middle of rush hour traffic. Translation: No way in hell.

Sources tell us ... the jet was delayed at JFK in NYC and didn't go wheels up until 6 AM EDT.

There are 2 SUVs waiting at Van Nuys airport to take Lindsay and her entourage to court.

One more complication .... Lindsay left all of her luggage on her original commercial flight. Someone has already retrieved the bags at LAX and has taken them to the Van Nuys Airport. Lindsay will change clothes in the car.