Hi - did a search and could not find anything here and hopefully the ua forum is the appropriate place.

Anyway, I just booked a MR and have a 55 minute connection in PHX from UA metal to US metal - as I recall the UA terminal and US complex are quite far apart. What's the easiest way to make the transfer and if I miss it due to late arriving UA flight, who is the better option to rebook? I assume UA ... thanks!