Is it possible to book an award ticket from an airport EI doesn't serve? For example RDU to JFK to DUB? I have not flown EI before, so I guess I am little confused on their partnership with a US airline (AA I thought?). When I try to search and enter RDU in the "from" section, I cannot enter Dublin in the "to" field?

Am I just doing something wrong or is it simply not possible? On BA.com It will search using the AA RDU to LHR flight, then onto Dublin, but of course the surcharges are so high,

thanks in advance