| Owings Mills to Cascais | 3,525.79 mi (5,674.21 km) |
| Owings Mills to Castelo Branco | 3,589.20 mi (5,776.26 km) |
| Owings Mills to Castro Daire | 3,539.05 mi (5,695.54 km) |
| Owings Mills to Celorico de Basto | 3,523.20 mi (5,670.04 km) |
| Owings Mills to Chamusca | 3,553.93 mi (5,719.50 km) |
| Owings Mills to Chaves | 3,539.28 mi (5,695.91 km) |
| Owings Mills to Cinfaes | 3,524.15 mi (5,671.57 km) |
| Owings Mills to Coimbra | 3,533.29 mi (5,686.27 km) |
| Owings Mills to Condeixa-a-Nova | 3,532.36 mi (5,684.79 km) |
| Owings Mills to Corroios | 3,541.30 mi (5,699.17 km) |
| Owings Mills to Coruche | 3,562.61 mi (5,733.47 km) |
| Owings Mills to Costa de Caparica | 3,536.28 mi (5,691.09 km) |
| Owings Mills to Covilha | 3,576.49 mi (5,755.80 km) |
| Owings Mills to Eiras | 3,532.71 mi (5,685.35 km) |
| Owings Mills to Elvas | 3,632.81 mi (5,846.44 km) |
