Next Tuesday I will be flying into IAH from LIR (Costa Rica), with a 2 hour 15 minute layover before continuing on to MSP. Both flights are United. As far as I can tell, we'll fly into Terminal E and could depart from any terminal.

We would like to visit the KLM lounge in Terminal D (have Priority Pass Select), and I'm wondering if there will be enough time and if there's any trouble traveling between terminals without a boarding pass for that terminal.