I know that Aer Lingus uses A330 for a very short hop SNN-DUB or DUB-SNN, before continuing its flight to the US destination airport. The flight takes about 40 min. and it costs, if you book early, about 60 euros. Great price!
So, are there any more flights like this one?
P.S.: I heard some rumors... With the fog in Western Europe, BA was considering of flying the passengers on B747 to its European destinations. Imagine flying onboard B747 from LHR to FRA or VIE!