Access and connections
Spain offers a broader network of direct international flights. Malaga, Barcelona, Madrid, Palma, and Alicante all serve frequent routes from the UK, North America, the Middle East, and across Europe. Portugal's Lisbon and Faro airports cover the main corridors well, with particularly strong transatlantic connections to North America. Buyers travelling from Canada or the eastern US often find Lisbon airport comparable in travel time to Malaga or Alicante.
Flight frequency and ease of connection from your home city should be compared early. A property that requires a layover or an inconvenient route will be used less over time, regardless of how appealing it is in other respects.