Interesting to see the way that the Spanish government is tackling air competition from Ryanair (apart from attempting court cases, that is). Just googled fares and times from Valencia to Seville by Ave and Ryanair. Taking into account two hold bags (on Ave you can take 3 per person), the rail fare is slightly cheaper and, allowing 30 minutes each side for travel to and from airports, the journey time door to door is exactly the same - 3hr 30 min. Lots of adverts in the Spanish press and on Renfe's site trumpeting new lower fares. He's going to lose his internal Spanish flights without doubt - I give it a year!