| Norristown to Oliveira de Frades | 3,441.30 mi (5,538.23 km) |
| Norristown to Oliveira do Bairro | 3,431.31 mi (5,522.16 km) |
| Norristown to Oliveira do Hospital | 3,466.44 mi (5,578.69 km) |
| Norristown to Ourem | 3,451.52 mi (5,554.68 km) |
| Norristown to Ovar | 3,415.58 mi (5,496.85 km) |
| Norristown to Pacos de Ferreira | 3,416.35 mi (5,498.08 km) |
| Norristown to Palmela | 3,465.28 mi (5,576.83 km) |
| Norristown to Paredes | 3,421.30 mi (5,506.05 km) |
| Norristown to Paredes de Coura | 3,391.93 mi (5,458.78 km) |
| Norristown to Penacova | 3,448.43 mi (5,549.71 km) |
| Norristown to Penafiel | 3,423.51 mi (5,509.61 km) |
| Norristown to Peniche | 3,420.57 mi (5,504.88 km) |
| Norristown to Peso da Regua | 3,448.99 mi (5,550.61 km) |
| Norristown to Pinhal Novo | 3,462.78 mi (5,572.81 km) |
| Norristown to Pinhel | 3,493.35 mi (5,622.00 km) |
