I am thinking of going to Las Vegas in Feb 12. found the following flights -

Manchester, UK Wed 15 Feb 10.55 - arrive Philadelphia 13.50, Depart Phil 15.50 arrive Las Vegas, McCarran Int 18.30

Depart LV Wed 29 Feb 11.30am - Phil 19.15. Depart Phil 20.45 arrive Manchester 08.45.

cost £372. US Airways economy! Is this good/feasible for transfers etc.

Also, what is the weather like in Feb in LV.

any comments/help or advice greatly appreciated.
Thank you.