How do I know I'm booking a p.s. flight?
So I'm on round 3 of booking a flight via EWR that doesn't get complimentary upgrades because it's p.s. Ok, I'm unlikely to get upgraded anyway, but it's annoying to have no idea until check-in that it's not even possible. These are not the old style where there's no E-, so I don't know how to tell. Is everything SFO-EWR p.s. these days?