| Petaluma to Montalegre | 5,554.42 mi (8,938.97 km) |
| Petaluma to Montemor-o-Novo | 5,689.88 mi (9,156.97 km) |
| Petaluma to Montemor-o-Velho | 5,599.57 mi (9,011.63 km) |
| Petaluma to Montijo | 5,661.61 mi (9,111.47 km) |
| Petaluma to Mortagua | 5,604.09 mi (9,018.91 km) |
| Petaluma to Moura | 5,744.54 mi (9,244.95 km) |
| Petaluma to Murtosa | 5,574.59 mi (8,971.44 km) |
| Petaluma to Nazare | 5,611.64 mi (9,031.06 km) |
| Petaluma to Nelas | 5,614.66 mi (9,035.93 km) |
| Petaluma to Obidos | 5,619.55 mi (9,043.79 km) |
| Petaluma to Odemira | 5,724.48 mi (9,212.66 km) |
| Petaluma to Odivelas | 5,645.57 mi (9,085.66 km) |
| Petaluma to Oeiras | 5,645.25 mi (9,085.16 km) |
| Petaluma to Olhao | 5,782.56 mi (9,306.13 km) |
| Petaluma to Oliveira de Azemeis | 5,575.55 mi (8,972.98 km) |
