| Ontario to Hoyo de Manzanares | 5,775.98 mi (9,295.54 km) |
| Ontario to Huelva | 5,797.44 mi (9,330.09 km) |
| Ontario to Huercal de Almeria | 6,004.39 mi (9,663.13 km) |
| Ontario to Huercal-Overa | 6,002.16 mi (9,659.54 km) |
| Ontario to Huesca | 5,842.85 mi (9,403.15 km) |
| Ontario to Huetor Vega | 5,945.10 mi (9,567.72 km) |
| Ontario to Huetor-Tajar | 5,923.02 mi (9,532.18 km) |
| Ontario to Humanes de Madrid | 5,795.15 mi (9,326.39 km) |
| Ontario to Ibi | 5,999.68 mi (9,655.55 km) |
| Ontario to Ibiza | 6,065.63 mi (9,761.69 km) |
| Ontario to Icod de los Vinos | 5,710.98 mi (9,190.94 km) |
| Ontario to Igualada | 5,945.62 mi (9,568.55 km) |
| Ontario to Illescas | 5,801.06 mi (9,335.90 km) |
| Ontario to Inca | 6,083.97 mi (9,791.20 km) |
| Ontario to Ingenio | 5,791.18 mi (9,320.00 km) |
