Can you use trip credits denominated in USD on a trip originating in the UK?
Do all flights have to be AA operated or can you have a BA metal AA coded leg?
Does the itinerary have to be priced in USD or can the USD credits take money off a GBP priced ticket?
Can any of this be done self-service online? If not, how?
The FAQ here says “select countries” but the asterisk note doesn’t actually give a list of countries:
https://www.aa.com/i18n/customer-ser...vel-credit.jsp