Worst. Website. Ever.
Atlantic Airways win hands down, for the really nasty ticket booking system. Several pages of forms (fair enough I suppose) but every single thing that you do in those forms triggers Javascript which reloads the page. Which ain't fun when you're using the world's slowest interweb connection.
I booked tickets through this painful monstrosity this weekend just gone. It took nearly half an hour, almost all of which involved me idly twiddling my thumbs waiting for data. Given that nigh-on everyone in .fo - from where presumably most of their traffic originates although the server is hosted in Denmark - uses shitty slow intarweb connections, this is just plain stupid.