Hi everyone

My wife and I are thinking of taking a trip skiing in January to Lake Tahoe. ANA is showing availability on US airways via Philadelphia. Now US airways offers business transatlantic with only coach and first domestically. There doesn't seem to a business class within the usa.

If we book a business class ticket would they book us business to PHL and then coach onto SFO? Or would they book business and then first? Any thoughts??

Thanks
Nick