Thank you for all the quick replies
Since I need to use flight connections anyway, I will use the FW instead. Could take some more time, but I have about 6h at T5 before flying home again, so no rush
I am going with a friend who enjoys Champagne. So rather than going out in Norway on a restaurant and buy a Champagne there, it is cheaper to fly to LHR and spend some hours there
Even if I pay for the ticket, and the I get some Avios also. If I use Avios, even more value
