| Sulphur Springs to Cascais | 4,653.05 mi (7,488.36 km) |
| Sulphur Springs to Castelo Branco | 4,712.59 mi (7,584.18 km) |
| Sulphur Springs to Castro Daire | 4,659.91 mi (7,499.40 km) |
| Sulphur Springs to Celorico de Basto | 4,642.68 mi (7,471.68 km) |
| Sulphur Springs to Chamusca | 4,679.22 mi (7,530.48 km) |
| Sulphur Springs to Chaves | 4,657.07 mi (7,494.84 km) |
| Sulphur Springs to Cinfaes | 4,644.63 mi (7,474.80 km) |
| Sulphur Springs to Coimbra | 4,656.48 mi (7,493.89 km) |
| Sulphur Springs to Condeixa-a-Nova | 4,655.86 mi (7,492.88 km) |
| Sulphur Springs to Corroios | 4,668.54 mi (7,513.29 km) |
| Sulphur Springs to Coruche | 4,688.76 mi (7,545.84 km) |
| Sulphur Springs to Costa de Caparica | 4,663.52 mi (7,505.21 km) |
| Sulphur Springs to Covilha | 4,698.66 mi (7,561.77 km) |
| Sulphur Springs to Eiras | 4,655.83 mi (7,492.83 km) |
| Sulphur Springs to Elvas | 4,758.11 mi (7,657.44 km) |
