Quick question:
Flying out of EWR soon (haven't been here for a long while). Is it possible to go to the BA lounge (via Priority Pass) when flying AS? The flight leaves from Gate 44, but on the map, looks like it isn't connected airside to the other "rotunda" where Gate 50-59 is located. Is this true? Does it mean that Terminal B is essentially 3 separated areas with no connectors? Would I have to exit and re-clear security? Appreciate any insights. Thanks!

Edit: To answer my own question - they're not connected, so you'd have to exit and re-enter security from the BA lounge to the AS gate. Thankfully TSA wait time is minimal.