| Serris to Castelo Branco | 803.79 mi (1,293.58 km) |
| Serris to Castro Daire | 758.61 mi (1,220.86 km) |
| Serris to Celorico de Basto | 735.63 mi (1,183.88 km) |
| Serris to Chamusca | 860.71 mi (1,385.18 km) |
| Serris to Chaves | 699.01 mi (1,124.95 km) |
| Serris to Cinfaes | 754.89 mi (1,214.87 km) |
| Serris to Coimbra | 811.90 mi (1,306.63 km) |
| Serris to Condeixa-a-Nova | 819.33 mi (1,318.58 km) |
| Serris to Corroios | 922.88 mi (1,485.23 km) |
| Serris to Coruche | 884.03 mi (1,422.70 km) |
| Serris to Costa de Caparica | 923.91 mi (1,486.90 km) |
| Serris to Covilha | 777.82 mi (1,251.77 km) |
| Serris to Eiras | 810.07 mi (1,303.67 km) |
| Serris to Elvas | 847.81 mi (1,364.42 km) |
| Serris to Entroncamento | 853.84 mi (1,374.12 km) |
