| Oconomowoc to Oliveira de Frades | 3,965.60 mi (6,382.02 km) |
| Oconomowoc to Oliveira do Bairro | 3,958.59 mi (6,370.73 km) |
| Oconomowoc to Oliveira do Hospital | 3,992.87 mi (6,425.91 km) |
| Oconomowoc to Ourem | 3,986.88 mi (6,416.26 km) |
| Oconomowoc to Ovar | 3,940.10 mi (6,340.97 km) |
| Oconomowoc to Pacos de Ferreira | 3,936.29 mi (6,334.85 km) |
| Oconomowoc to Palmela | 4,011.34 mi (6,455.63 km) |
| Oconomowoc to Paredes | 3,941.63 mi (6,343.44 km) |
| Oconomowoc to Paredes de Coura | 3,906.30 mi (6,286.57 km) |
| Oconomowoc to Penacova | 3,977.18 mi (6,400.65 km) |
| Oconomowoc to Penafiel | 3,943.62 mi (6,346.64 km) |
| Oconomowoc to Peniche | 3,961.46 mi (6,375.35 km) |
| Oconomowoc to Peso da Regua | 3,967.67 mi (6,385.34 km) |
| Oconomowoc to Pinhal Novo | 4,008.34 mi (6,450.79 km) |
| Oconomowoc to Pinhel | 4,013.02 mi (6,458.34 km) |
