Heathrow lounge access question

[ChrisO]

I am in the process of booking for work the following trip:
Isle of Man (IOM) –> LHR –> Atlanta (ATL) –> Oklahoma (OKC) with the first leg being on Loganair into LHR T2 and then transferring to T3 for Delta for next 2 legs, in Business Class
Returning, is the same routing (in reverse), so arriving into LHR T3 at 0645 and my Loganair flight leaves T2 at 1440 so have nearly 8 hour wait.

I think as I am travelling back on Delta One I can access VS Revivals Lounge, but is there a lounge in T2 that I have access to on the basis of my ticket arriving on SkyTeam Business Class?
Thanks

[The real Swiss Tony]

I think OneWorld is the outlier here in allowing you access to a lounge based on the cabin you arrived in on. And SkyTeam have no lounge in T2 anyway.

But I would be asking if via London the best route here? What about Dublin? That way you get to do customs at this end of the journey and if flying EI business class into Dublin, they will give you lounge access for the transfer.