True ymmv... I was booked on an itinerary phl-las and my friend booked Mr the ticket completely on the wrong name (Hebrew as opposed to my English name) for whatever reason I was not able to get through to us airways before the flight to change the ticket and due to the fact that my friend made up a birthday on the reservation, the gate agent refused to change the ticket... After 2 tries with tsa I got an agent that completely missed the difference in names. However due to the fact that I had already flown one way when I got through to us airways and tried to change the information for my return flight the system was locking them out. I had them put notes in the system on an updated birthday and name. When I got to the airport the gate agent was also unable to change anything so I took another swipe at tsa. I got passed up to a supervisor who decided to check the no fly list and told me that as long as I cleared thier security check I would be allowed through halfway through the process of checking her supervisor showed up and told her that she can't let me in even if I did pass the background /no fly list check. I went back to the ticketing agent who still could do nothing for me. After a couple unsuccessful attempts to get a gate pass. I quickly looked into the option of a refundable ticket to get me through, but I got confused with the T&C's so I decided I would rather be out miles than the money a refundable ticket would gave costed had I been unsuccessful in refunding it. Luckily there was ba availability and I booked right away...