United is no longer on my fav list. We had a 10 day trip to Alsace France planned in July and had a connector PVD-EWR then direct to Zurich....well....two days in a row (five out of six) they cancelled our connector and eventually the whole flight (for us...the ZRH flight went as scheduled). Lost the apartment rental cost and a decent amount of the car rental fee. Flight cost was refunded. Not a weather issue but an ATC issue with United having Waaay too many flights at EWR.

Soooo...no more connecting flights with United for me....nothing to do with a boarding issue since we never got that far