| South Portland to Torres Vedras | 3,108.65 mi (5,002.89 km) |
| South Portland to Trancoso | 3,148.57 mi (5,067.13 km) |
| South Portland to Trofa | 3,075.27 mi (4,949.17 km) |
| South Portland to Vagos | 3,092.34 mi (4,976.65 km) |
| South Portland to Valadares | 3,078.54 mi (4,954.43 km) |
| South Portland to Valbom | 3,080.82 mi (4,958.10 km) |
| South Portland to Vale de Cambra | 3,096.96 mi (4,984.07 km) |
| South Portland to Valenca | 3,052.52 mi (4,912.55 km) |
| South Portland to Valongo | 3,082.52 mi (4,960.84 km) |
| South Portland to Vendas Novas | 3,160.31 mi (5,086.03 km) |
| South Portland to Viana do Castelo | 3,052.03 mi (4,911.77 km) |
| South Portland to Vieira do Minho | 3,086.86 mi (4,967.82 km) |
| South Portland to Vila do Conde | 3,066.11 mi (4,934.42 km) |
| South Portland to Vila Franca do Campo | 2,356.55 mi (3,792.50 km) |
| South Portland to Vila Nova de Cerveira | 3,051.57 mi (4,911.03 km) |
