| Olean to Oliveira de Frades | 3,534.14 mi (5,687.64 km) |
| Olean to Oliveira do Bairro | 3,525.35 mi (5,673.51 km) |
| Olean to Oliveira do Hospital | 3,560.22 mi (5,729.63 km) |
| Olean to Ourem | 3,548.98 mi (5,711.53 km) |
| Olean to Ovar | 3,508.44 mi (5,646.28 km) |
| Olean to Pacos de Ferreira | 3,507.32 mi (5,644.49 km) |
| Olean to Palmela | 3,567.29 mi (5,741.00 km) |
| Olean to Paredes | 3,512.45 mi (5,652.73 km) |
| Olean to Paredes de Coura | 3,480.55 mi (5,601.40 km) |
| Olean to Penacova | 3,543.13 mi (5,702.11 km) |
| Olean to Penafiel | 3,514.57 mi (5,656.16 km) |
| Olean to Peniche | 3,520.28 mi (5,665.34 km) |
| Olean to Peso da Regua | 3,539.53 mi (5,696.33 km) |
| Olean to Pinhal Novo | 3,564.57 mi (5,736.62 km) |
| Olean to Pinhel | 3,584.42 mi (5,768.57 km) |
