This seems like a good idea. This would allow FlyBe to utilise some of their aircraft overnight aswell.
Seems funny that there could be a possible route to Spain from a City airport – probably be ages before a flight to Alicante or Malaga would be introduced from London City airport 😀
I think there would be a demand for the route – especially as the airport is so near the city centre. Im sure it wont be long before one of the low cost airlines offers more routes from Belfast – probably FlyBe, easyJet or Jet2.