Or yes. Tell us how UA could have foreseen that aircraft N14153 flying on time from Grand Junction to Denver, having had all its earlier flights on time, scheduled to fly from Denver to Louisville and its crew scheduled to fly the next morning out of Louisville, would get stuck in Denver precisely at the moment the other plane from Chicago to Louisville was boarding or already boarded, and while other flights were departing Denver on time or with small delays.
How would have UA predicted that an aircraft that had been flying in perfectly working condition would not be able to get out of Denver on time when there were no weather conditions disrupting operations massively?
Because no flights are late heading into a holiday week if the weather isn't bad?