| Zaltbommel to Montemor-o-Novo | 1,116.39 mi (1,796.66 km) |
| Zaltbommel to Montemor-o-Velho | 1,042.08 mi (1,677.06 km) |
| Zaltbommel to Montijo | 1,133.84 mi (1,824.74 km) |
| Zaltbommel to Mortagua | 1,013.42 mi (1,630.94 km) |
| Zaltbommel to Moura | 1,126.49 mi (1,812.92 km) |
| Zaltbommel to Murtosa | 1,008.67 mi (1,623.30 km) |
| Zaltbommel to Nazare | 1,085.85 mi (1,747.50 km) |
| Zaltbommel to Nelas | 997.26 mi (1,604.94 km) |
| Zaltbommel to Obidos | 1,102.40 mi (1,774.14 km) |
| Zaltbommel to Odemira | 1,191.36 mi (1,917.31 km) |
| Zaltbommel to Odivelas | 1,135.76 mi (1,827.82 km) |
| Zaltbommel to Oeiras | 1,145.98 mi (1,844.28 km) |
| Zaltbommel to Olhao | 1,203.97 mi (1,937.60 km) |
| Zaltbommel to Oliveira de Azemeis | 997.84 mi (1,605.87 km) |
| Zaltbommel to Oliveira de Frades | 995.87 mi (1,602.69 km) |
