| Dayton to Cascais | 3,877.41 mi (6,240.09 km) |
| Dayton to Castelo Branco | 3,934.22 mi (6,331.51 km) |
| Dayton to Castro Daire | 3,880.48 mi (6,245.03 km) |
| Dayton to Celorico de Basto | 3,862.80 mi (6,216.58 km) |
| Dayton to Chamusca | 3,901.98 mi (6,279.64 km) |
| Dayton to Chaves | 3,876.73 mi (6,238.99 km) |
| Dayton to Cinfaes | 3,865.07 mi (6,220.22 km) |
| Dayton to Coimbra | 3,878.05 mi (6,241.12 km) |
| Dayton to Condeixa-a-Nova | 3,877.58 mi (6,240.36 km) |
| Dayton to Corroios | 3,892.88 mi (6,264.98 km) |
| Dayton to Coruche | 3,912.15 mi (6,296.00 km) |
| Dayton to Costa de Caparica | 3,887.86 mi (6,256.90 km) |
| Dayton to Covilha | 3,919.73 mi (6,308.20 km) |
| Dayton to Eiras | 3,877.35 mi (6,239.99 km) |
| Dayton to Elvas | 3,980.83 mi (6,406.53 km) |
