Originally Posted by
meducate
The lounge is near gates B26-29, and UA typically flies out of the low A gates, so give yourself a few minutes to make the trek from the lounge to the gate prior to boarding.
The lounge has an outdoor seating area that is nice for plane spotting and to get fresh air. I liked the the UA gate setup at MAD, well organized with separate boarding lines designated for GS and 1K.