Q: Can you tell me which other Spanish airports I can fly to from Barcelona Airport?
A: For this type of question, which is dealing with destinations outside of Barcelona, visit the Spanish Airports official website. There is a link on the Spanish airports website to the English version of the site. Once at the official Spanish airports website you can select Barcelona Airport and you can obtain all the information you require.
Website: Spanish Airports
You can also look up some of the following airlines which have flights from Barcelona Airport to other Spanish cities.
Website: Vueling Airlines
Website: Iberia Airlines