A number of users outside the US have reported this problem during the past week or so, it is being bantered around on Allegiant facebook and other places. The problem seems to be tied to international access. The Allegiant facebook rep said they are aware of the problem and presumably someone is working on it. For a while they had an alternate site called www3.allegiantair.com and international users were able to connect to it, but it has been sporadic and I think now it just redirects to the main site.