| Greenock to Hoyo de Manzanares | 1,059.04 mi (1,704.35 km) |
| Greenock to Huelva | 1,296.04 mi (2,085.77 km) |
| Greenock to Huercal de Almeria | 1,321.87 mi (2,127.34 km) |
| Greenock to Huercal-Overa | 1,289.57 mi (2,075.37 km) |
| Greenock to Huesca | 974.26 mi (1,567.91 km) |
| Greenock to Huetor Vega | 1,300.15 mi (2,092.39 km) |
| Greenock to Huetor-Tajar | 1,296.30 mi (2,086.19 km) |
| Greenock to Humanes de Madrid | 1,085.33 mi (1,746.67 km) |
| Greenock to Ibi | 1,212.33 mi (1,951.06 km) |
| Greenock to Ibiza | 1,211.35 mi (1,949.48 km) |
| Greenock to Icod de los Vinos | 1,996.08 mi (3,212.39 km) |
| Greenock to Igualada | 1,033.41 mi (1,663.12 km) |
| Greenock to Illescas | 1,094.80 mi (1,761.90 km) |
| Greenock to Inca | 1,175.11 mi (1,891.15 km) |
| Greenock to Ingenio | 2,007.43 mi (3,230.65 km) |
