I just found new flts for our Silver Spirit ATH-ATH in Nov. They have us going from DEN-EWR-VIE-ATH, what I'd like to know from air experts. There only is 1 hr 15 in Vienna, I assume we will have to go thru customs and who knows what else coming from the US, is that even possible???? I just emailed my TA to check on it. Opinions??