| Opfikon to Oliveira de Frades | 949.35 mi (1,527.83 km) |
| Opfikon to Oliveira do Bairro | 970.88 mi (1,562.48 km) |
| Opfikon to Oliveira do Hospital | 950.05 mi (1,528.96 km) |
| Opfikon to Ourem | 1,009.32 mi (1,624.35 km) |
| Opfikon to Ovar | 962.94 mi (1,549.70 km) |
| Opfikon to Pacos de Ferreira | 937.61 mi (1,508.94 km) |
| Opfikon to Palmela | 1,070.46 mi (1,722.75 km) |
| Opfikon to Paredes | 937.20 mi (1,508.28 km) |
| Opfikon to Paredes de Coura | 921.44 mi (1,482.91 km) |
| Opfikon to Penacova | 971.53 mi (1,563.53 km) |
| Opfikon to Penafiel | 934.83 mi (1,504.46 km) |
| Opfikon to Peniche | 1,055.73 mi (1,699.03 km) |
| Opfikon to Peso da Regua | 914.34 mi (1,471.48 km) |
| Opfikon to Pinhal Novo | 1,068.16 mi (1,719.03 km) |
| Opfikon to Pinhel | 899.03 mi (1,446.85 km) |
