Thoir iomradh air an earrann gu h-ìosal agus an uairsin freagair a 'cheist às deidh sin anns an aon chànan ris an earrann:  Passage: Tha 47 puirt-adhair poblach ann an Spàinn. Is e am port-adhair as trainge port-adhair Madrid (Barajas), le 50 millean neach-siubhail ann an 2011, a bhith na 15mh port-adhair as trainge san t-saoghal, a bharrachd air an ceathramh as trainge san Aonadh Eòrpach. Tha port-adhair Barcelona (El Prat) cudromach cuideachd, le 35 millean neach-siubhail ann an 2011, agus tha e na 31mh port-adhair as trainge san t-saoghal. Tha prìomh phort-adhair eile ann an Majorca (23 millean neach-siubhail), Málaga (13 millean neach-siubhail), Las Palmas (Gran Canaria) (11 millean neach-siubhail), Alicante (10 millean neach-siubhail) agus nas lugha, le àireamh luchd-siubhail eadar 4 agus 10 millean, mar eisimpleir Tenerife (dà phort-adhair), Valencia, Seville, Bilbao, Ibiza, Lanzarote, Fuerteventura. Cuideachd, barrachd air 30 puirt-adhair le àireamh luchd-siubhail fo 4 millean.  Ceist: Cia mheud neach-siubhail a chaidh tro phort-adhair Madrid ann an 2011?
50 millean