For what it's worth, for those of you with a chance of getting a match ticket, I noticed that at least Easy Jet's prices (to AMS) leapt up in the hours just after the Vitesse draw was made, and by the next day it had to quite a signifcant extent slipped back. It all depends on the automated algorithm they use to determine the price, and this afternoon their software may be looking to cash in on the spike..
Although demand is high the capacity and competition to Copenhagen from London is intense; London is by far Copenhagen's most popular flight destination. Easy Jet and Norwegian have been slugging it out for the last 7 years and now there is also a new battle beween EasyJet and new-to-Copenhagen Ryanair (jokers) from Luton.
EasyJet also have flights from Bristol to Copenhagen some days. Very occasionaly SAS and BA from LHR offer good fares; worth checking for completeness.
Next tip: Train Copenhagen Airport or Central to Herning may be quite pricey There is a fast bus to various paces in Jutland, including Herning, or Aarhus, from Copenhagen (both the Airport and the inner suburb of Valby (10 mins from centre): http://www.linie888.dk .