I am currently looking for an transcontinental flight across the US (SFO/LAX-BOS), but I wonder which airline should I take? It must be a direct flight and prices seem to be more or less equal, except of US. My list so far: UA/CO + UDU as UA*G - no PTV at all VX + PTV - Baggage fees B6 + PTV - ??? AA + ??? - no PTV, Baggage fees Which one should I take?