UA account - book with United or Lufthansa for Lufthansa flight?
I'm fairly new to the UA programme having been doing Delta for years, but finally made the switch in December last year so only have Silver right now. Based on my current planned travel I should easily hit 1K this year, but I'm having trouble understanding exactly when I accrue PQM on United when flying on partner airlines (which is quite often).
I'm planning on doing London to Mauritius with Lufthansa (via Frankfurt) and back with Swiss (via Zurich). I could buy this itinerary via United, but not select seats until checkin. By the look of it I could also book it with Lufthansa directly. Is there any benefit to one or the other that I'm missing? Previous LH flights have credited PQM, thoguh I'm not sure if it was at the same rate as a UA ticket would. Is there a definitive guide to this?