Thanks to @tilassayso for international flight information and @miahatestila
Let me start off with which airline Tila is taking. She is taking Phillippine Airlines to Guam and then to Australia. This airline does not seem like a normal choice for "celebrities" Phillippine Airlines also does not have a First class seating plan.
So Tila did manage to tell us all the truth for once, she is going to Australia. But as we all know the lies don't stay out of Tila's mouth, or in this case her twitter for very long.
Tila took two pictures (above) of where she was sitting on her plane. She claimed to be sitting in first class. However, if you look at the seat Tila is sitting in it is DEFINATELY NOT first class. Many flights internationally will have the First Class seating on the second level of the plane, to help celebrities from being seen. So she wouldn't have even seen first class from the picture.
Now she could be in business class, which on Phillippine Airlines seems to have on the second level. The seats do seem to fit the description for business class, but obviously I am not sure.
Of course she could be in coach as well. I cannot tell between Business class and Coach, but regardless she isn't in First Class. I thought real celebrities were in first class Tila? Guess this proves you really don't have any class, even on a plane.
You can decide for yourself if it's coach or business.