| Sumner to Benavente | 5,211.77 mi (8,387.54 km) |
| Sumner to Bombarral | 5,183.57 mi (8,342.16 km) |
| Sumner to Bougado | 5,094.96 mi (8,199.55 km) |
| Sumner to Braga | 5,088.40 mi (8,188.98 km) |
| Sumner to Braganca | 5,129.88 mi (8,255.75 km) |
| Sumner to Cabeceiras de Basto | 5,102.77 mi (8,212.12 km) |
| Sumner to Cacem | 5,204.50 mi (8,375.83 km) |
| Sumner to Cadaval | 5,187.32 mi (8,348.19 km) |
| Sumner to Caldas da Rainha | 5,176.92 mi (8,331.45 km) |
| Sumner to Calheta | 5,225.26 mi (8,409.24 km) |
| Sumner to Camara de Lobos | 5,234.19 mi (8,423.62 km) |
| Sumner to Canico | 5,241.97 mi (8,436.13 km) |
| Sumner to Cantanhede | 5,145.98 mi (8,281.66 km) |
| Sumner to Carregal do Sal | 5,161.51 mi (8,306.65 km) |
| Sumner to Cartaxo | 5,202.66 mi (8,372.87 km) |
