My family are looking at a potential BCN (driving from just over the French Border - Montpellier (MPL) is the nearest airport, although Marseille (MRS) is the larger & we use it more. Iberia fly from both to Madrid) to Gibraltar (although Malaga or Jerez would be perfectly fine. Granada & Seville seem a little further away so unnless there is a very strong) or vice versa.

We have British Airways Executive Club & United Airlines Mileage Plus accounts which makes both options worth exploring before anyone else. We tried Spanair before & the're alright. Don't have a clue what Iberia is like & I've heard an awful lot of bad stuff about their onboard service. Is there either option which is more preferable given recent experiences...

Any feedback would be appreciated.

Cheers,