Originally Posted by higham44

Be mindful that the connection time at PHL might be a bit tight. It took me 45mins + to clear immigration last August then you have to go through security to pick up the next flight. Fingers crossed you make the transfer quickly.
An overnight hotel at LAX (although generally not cheap) gives you the opportunity to avoid 12 hrs at the airport.
Have you considered seeing if you can pick up some US internal flights during your time in LAS to gain extra TPs?