Originally Posted by
englishvalencia
Am I right in thinking that for a US to South Africa itinerary, a stopover in London is almost impossible? BMI is the only *A member to have a hub in LHR.
No. Stopover in LHR should be possible. Check the
USDM membership guide:
Stopovers
3) For travel outside the continental U.S., Canada and Alaska, you’re allowed one stopover per US Airways itinerary at a US Airways gateway or international destination (or in a partner hub city if you’re traveling on an award partner). US Airways hub/international gateway cities include Charlotte, Philadelphia and Phoenix. Please call Reservations for additional US Airways international gateways and partner hub cities.
If you anyway don't need the last leg LHR-USA, book this leg on US, then there should be no complaint about the rule stated above.
Please keep in mind, if you make a stopover at the UK and flying business- or first-class, the UK Luxury Fee will be charged. I guess its some additional 50-100 GBP. This fee does not apply, if your departing flight (LHR-USA) is in economy class.