United has stranded me in Denver 4 days before Christmas. Their customer service has been a nightmare. My flight from Boston was fine, but maybe we should have been warned that we might not be able to continue to Portland today. The passengers heading to Portland standing in line at UAL customer service were told by a representative that there was nothing they could do for us through Christmas Day, that it wasn't their fault (it was the weather) and that we should "use the red phone" over to the side. After 30 mins on hold with UAL reservations, the callers still hadn't gotten through, so a group of us got online. No matter what we did to try and find alternate routes, the site froze again and again. I called UAL reservations from my cell and after 1 hr and 15 mins on hold I spoke to a nice woman with an Indian accent, gave her all my info and waited. She came back on the line to tell me she was going to check with her supervisor and to hold. 45 mins later I was still waiting, then I got cut off. The UAL website is still hiccuping and the automated interface on the UAL reservations line makes it impossible to find help for a traveler stranded in the middle of an itinerary. As a matter of face, the Denver to Portland portion of my itinerary has disappeared altogether from their system and only my return to Boston is showing up. If I can't get there I can't very well return. At the moment I'm in danger of spending Christmas alone at a Denver airport hotel.