We had to stop over at Denver as there wasn’t a direct service to San Francisco. The flight from New Orleans was fine apart from the security queues. The flight itself was ok - seats were big enough for the short flight and we were well looked after by the cabin staff. The problem arose at Denver where the 90min stopover turned into a 5hr delay due to bad weather over San Francisco. The organisation by UA was pretty poor. The communication was sketchy and there didn’t seem to be any contingency arrangements for providing any drinks or snacks for passengers. Outbound flight times changed every 30mins or so and although UA couldn’t control the weather, their organisation of the situation was poor. Eventually we took a flight and strangely the plane was fairly empty. Initially the service on the plane was good, however one of the crew members spent more time reading a book on one of the empty seats rather than looking after the passengers and wasn’t a great advert for UA - perhaps he was as fed up as the rest of us.