Originally Posted by DELee

Both airports are seeing larger volumes of passengers vs. other hubs in United's network. From a time of day perspective, busyness will be driven by which banks of flights you are seeking to connect into from ABQ and to where.

From someone who connects through the two, DEN's terminal system has worked better for me as a connector historically since UA's flights were principally out of Terminal/Concourse B but that is changing with flights out of A. IAH can be a pain to navigate given the sheer number of terminals and where they put big planes vs. smaller UX planes so my longest runs between terminals and connections have been at IAH.

Additionally right now, from a club perspective DEN has only one UC for the next 12 months. IAH has multiple UCs that are finally reopening.

I would say upgrades are driven by when you fly and the sizes of aircraft as well as which cities you fly to. If you decide to go toe-to-toe with other UA elites during the AM and PM flight banks, you're going to have challenges.

David