Originally Posted by
Michilander
For the past week or so the website has erred out on me any time I try to do a round trip.
+1
Not sure how long this has been going on but it's happening to me all weekend and this morning.
Fwiw, since the booking a round trip page errors out

, I have found that starting the process as if I was booking a one way ticket and then changing the option to round trip once the one way page appears works for me