Thanks for the responses.

I had been looking on Expedia for direct flights and Singapore air was coming up as the only *A carrier with a direct london/DXB route.

9:00 pm Depart London (LHR)
Arrive Dubai (DXB) 7:50 am +1 day Tue 15-Jan
Duration: 6hr 50mn Singapore Airlines 2500
Nonstop flight

However, I didn't look quite closely enough. This is actually a codeshare with Virgin. I assume therefore no *A EQM's (I am UA 1K).

Sorry for the confusion.