| Grand Forks to Oliveira de Frades | 4,173.54 mi (6,716.67 km) |
| Grand Forks to Oliveira do Bairro | 4,169.55 mi (6,710.23 km) |
| Grand Forks to Oliveira do Hospital | 4,202.30 mi (6,762.95 km) |
| Grand Forks to Ourem | 4,205.12 mi (6,767.48 km) |
| Grand Forks to Ovar | 4,148.78 mi (6,676.82 km) |
| Grand Forks to Pacos de Ferreira | 4,140.68 mi (6,663.77 km) |
| Grand Forks to Palmela | 4,239.64 mi (6,823.05 km) |
| Grand Forks to Paredes | 4,146.28 mi (6,672.79 km) |
| Grand Forks to Paredes de Coura | 4,106.03 mi (6,608.01 km) |
| Grand Forks to Penacova | 4,189.18 mi (6,741.83 km) |
| Grand Forks to Penafiel | 4,148.00 mi (6,675.56 km) |
| Grand Forks to Peniche | 4,185.65 mi (6,736.14 km) |
| Grand Forks to Peso da Regua | 4,170.17 mi (6,711.23 km) |
| Grand Forks to Pinhal Novo | 4,236.20 mi (6,817.50 km) |
| Grand Forks to Pinhel | 4,215.50 mi (6,784.20 km) |
