I only have non-subscription access to flightradar24 so can only look back 7 days.

I'm trying to get my head around why Virgin Atlantic (VS301 DEL-LHR) is consistently delayed. I know Pakistan has closed its airspace so re-routing is in operation.

But when I look at similar flights such as Air India (AI111 DEL-LHR) or Air France (AF225 DEL-CDG) they all seem to be unaffected.

Am I just interpreting the data incorrectly?