I don't think WOW have ever flown to STN but stand to be corrected. Iceland Express flew from STN for years before joining the exodus to LGW at the end of the decade. They did return briefly for a short season with a couple of flights a week at poor times that unsurprisingly weren't well supported. Officially WOW bought Iceland Express, but the relationship was a bit murky and in reality they just superseded their predecessor with a very similar route network.