I have ticketed this route before as part of an XONEX, to maximise miles without running afoul of the limits on direct flights from UK to middle east, as in:

LHR-DXB-HEL-DXB-LHR

It's hard to do better than that in Europe, especially if you have reason to be in both HEL and DXB.

If it appears in the OneWorld timetable, it counts, even if it's operated by one of AY's charter-configured 752s.

AY also operates a plethora of other flights (with this same aircraft type) that don't appear in the OneWorld timetable, (Phuket, or Jaipur come to mind). It is these flights which are excluded from OneWorld products.

Hope this helps.

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