Excellent fare. Thank you.
Trying to find routing via Tokyo or Hong Kong on the way back. That way you can avoid getting a visa.
Exactly. Beijing, Shanghai and a few other cities are in the program. But you have to continue your journey to a 3rd country. Hong Kong/Macao also qualify as a 3rd country, btw.
Best thing to do is pair with an Avios booking to HKG or TYO, unless you can find a cheap paid fare to either place. You can have 72hrs on either side.
It is a 5 day minimum stay.
P.s. Certain days you can route out of BWI via MIA, LAX and return LAX, MCO, JFK, to squeeze the miles.