| Cayce to Montalegre | 3,910.51 mi (6,293.36 km) |
| Cayce to Montemor-o-Novo | 3,959.90 mi (6,372.84 km) |
| Cayce to Montemor-o-Velho | 3,902.10 mi (6,279.82 km) |
| Cayce to Montijo | 3,924.38 mi (6,315.68 km) |
| Cayce to Mortagua | 3,918.73 mi (6,306.58 km) |
| Cayce to Moura | 4,011.12 mi (6,455.28 km) |
| Cayce to Murtosa | 3,892.28 mi (6,264.02 km) |
| Cayce to Nazare | 3,895.31 mi (6,268.90 km) |
| Cayce to Nelas | 3,935.98 mi (6,334.35 km) |
| Cayce to Obidos | 3,896.08 mi (6,270.14 km) |
| Cayce to Odemira | 3,963.67 mi (6,378.92 km) |
| Cayce to Odivelas | 3,907.72 mi (6,288.86 km) |
| Cayce to Oeiras | 3,903.16 mi (6,281.53 km) |
| Cayce to Olhao | 4,017.93 mi (6,466.23 km) |
| Cayce to Oliveira de Azemeis | 3,897.85 mi (6,272.98 km) |
