Just before 9/11, Luton signed a "3 year" agreement to bring a range of Scandinavian charters into Luton. In the first year, there were fairly frequent visits by MyTravel/Premiair, Malmo Aviation, Finnair and Britannia Scandinavia.
These only lasted (I think) one summer season. But they were charters - inbound tourists. I can't see Duo's flights being used by this type of passenger.
Does anyone know where these flights operate now, or have thay been superceded by locos?