Airfare between Porto and Seville is high this fall. What are my alternatives?
I like to use the Rome2Rio website (rome2rio.com) to look at options. One option would be to take the train to Lisbon and then fly Lisbon to Seville.
The Rome2Rio website makes me and my accumulated ground transport knowledge for Spain and Portugal (almost) redundant, but it is only as good as the information provided by services/companies which have a web presence, which several bus companies in Spain still do not have. In this instance you have all you need.