| Riverton to Montalegre | 5,034.88 mi (8,102.85 km) |
| Riverton to Montemor-o-Novo | 5,157.95 mi (8,300.91 km) |
| Riverton to Montemor-o-Velho | 5,071.79 mi (8,162.26 km) |
| Riverton to Montijo | 5,128.18 mi (8,253.00 km) |
| Riverton to Mortagua | 5,078.35 mi (8,172.81 km) |
| Riverton to Moura | 5,212.70 mi (8,389.04 km) |
| Riverton to Murtosa | 5,048.97 mi (8,125.53 km) |
| Riverton to Nazare | 5,080.96 mi (8,177.02 km) |
| Riverton to Nelas | 5,090.16 mi (8,191.82 km) |
| Riverton to Obidos | 5,087.82 mi (8,188.05 km) |
| Riverton to Odemira | 5,188.02 mi (8,349.31 km) |
| Riverton to Odivelas | 5,111.85 mi (8,226.73 km) |
| Riverton to Oeiras | 5,110.86 mi (8,225.13 km) |
| Riverton to Olhao | 5,246.13 mi (8,442.84 km) |
| Riverton to Oliveira de Azemeis | 5,050.69 mi (8,128.30 km) |
