Practically all Premier Leauge clubs prefer to fly - Man U being an exception for obvious reasons - private flight, security, convenience, etc. You only have to look at the fixtures and then tie that up with the airports close by. Arsenal flew from Luton to Norwich last season - flying time 13 minutes I think. Also some lower league clubs - QPR, Blackpool, Preston - also fly occassionally as do some ruby union clubs - i.e. Exeter, Saracens.
Before the environmentalists have a go how about this one - bought some frozen Raspberries in Morrisons in Gibraltar over Christmas- packed in Serbia! looks like they travelled half way round Europe.