It looks like you'll have to connect in either IAD or ORD. You can fly AC to either IAD, or ORD, then continue on to RIC with UA. Book via google flights or United.com I believe. Also can book as codeshare with United on aircanada.com (United will probably have it cheaper).
Last edited by YHZ_Flyer; May 12, 2016 at 7:54 pm