rob a bank close to an air port only a little while before yout flight takes off, after robbing the back, use a combination of running, and cars to get to the airport, and board your flight.
make sure you are wearing a jacket, and such, preferbaly reversable, and go into the bathroom, and reverse what you can and change the rest of your clothing.
make sure you use some type of putty to be able to mask your facial features, take this putty off, and flush irt down the lou.
make sure you have done the same on you fingers.
and that my freind, is a possible way to do it
, from the criminal mastermind that is Xen (and I just came up with all that oin the spur of the moent too
)