www.ual.com is currently listing 451.54 for my flights BUT I was still able to find the $221 fare a few minutes ago! The catch is that you need to fly into FLL, which is not a big deal, but the real problem is that the outbound flight from PDX is a redeye through ORD. More reasonable departure times are commanding a higher fare. If you dislike redeyes, it might make sense to fly to MIA and then return from FLL; I would presume that you would then be able to obtain a fare midway between the two. One other caveat is that I checked for midweek (i.e. Tuesday) departures; I would imagine that weekend fares are a bit higher. I'll try to check this out for you via the "good" version of United Connection when I am off the net.