I'm looking to fly ist-del and noticed that the flight I want is on TK metal but ticketed by AI. Now with AI's *A membership qualification postponed, I understand that an AI flight shouldn't be credited for UA Mileage plus, but what about that a TK-operated flight ticketed by AI? I know that the TK ticketed flight would be credited so this would be my backup, but the curious mind wants to know the alternative. Does anyone have any experience in this area?

I'm after the EQM so I'll be flying that flight either way, just wanted to know what the alternatives are like. Thanks!