It's best to keep that topic to the Southampton thread as we don't really want a BOH v SOU thread:-)
It's quite simple to understand why the Lapland flights are better suited to BOH due to the opening hours at SOU as many of those flights have run late and with some in the past having to divert to BOH due to SOU being closed, we're only looking at a couple of flights so no big loss to SOU only a gain for BOH regarding a couple of extra flights.
Flybe from Southampton is more than just domestic but let's leave it at that as this is the BOH thread!