| Senec to Arcos de Valdevez | 1,327.77 mi (2,136.84 km) |
| Senec to Arcozelo | 1,364.37 mi (2,195.74 km) |
| Senec to Arganil | 1,368.05 mi (2,201.66 km) |
| Senec to Arouca | 1,350.84 mi (2,173.96 km) |
| Senec to Arruda dos Vinhos | 1,460.04 mi (2,349.70 km) |
| Senec to Aveiro | 1,379.67 mi (2,220.36 km) |
| Senec to Aver-o-Mar | 1,358.34 mi (2,186.03 km) |
| Senec to Aves | 1,335.91 mi (2,149.93 km) |
| Senec to Azambuja | 1,447.93 mi (2,330.21 km) |
| Senec to Baiao | 1,333.20 mi (2,145.58 km) |
| Senec to Barcelos | 1,347.66 mi (2,168.85 km) |
| Senec to Barreiro | 1,472.55 mi (2,369.84 km) |
| Senec to Batalha | 1,422.52 mi (2,289.32 km) |
| Senec to Beja | 1,446.66 mi (2,328.18 km) |
| Senec to Belas | 1,477.28 mi (2,377.45 km) |
