Originally Posted by
rylan
I think some clarification may help... do you mean add a stopover for a day or route through MEM or DTW? I assume you mean to do this when you purchase and not after. Any particular airport in the area or are DCA/BWI/IAD all ok?
If the routing is valid for a destination then you can, but you may have trouble finding it without breaking the fares.
Correct, just route through MEM or DTW to eek out some more miles. As for airports, I typically depart from BWI.