Are you planning flying via schipol to Aberdeen? Might be cheaper to get to London via easyjet then a flight to Inverness with easyjet.
It can be cheaper but driving to schiphol takes also time and money. We will do it this way:
Flying from brussels to london and from london to aberdeen, it costs us 256?. Leaving here at 7:25 and ariving at 10:30. We are staying in a hotel in aberdeen and on saturday morning we will drive with a rental car to inverness. See the match, drink some beers with you guys and on sunday we have our trip back. Total costs without beer will be 348?.