To go to the aiport of Maiquetía-Caracas (, we went with the transfer offered by Iberia. There you must pay the aiport exit tax of 33.600 Bs and also 84.000Bs of airport tax. Luckily if you fly Iberia, these two taxes are included with the price we paid.
The flight Caracas-Madrid 8 hours and a half, and Madrid-Barcelona of 50 minutes.