| Manassas to Oliveira de Frades | 3,584.98 mi (5,769.47 km) |
| Manassas to Oliveira do Bairro | 3,574.76 mi (5,753.01 km) |
| Manassas to Oliveira do Hospital | 3,609.91 mi (5,809.60 km) |
| Manassas to Ourem | 3,594.21 mi (5,784.33 km) |
| Manassas to Ovar | 3,559.28 mi (5,728.10 km) |
| Manassas to Pacos de Ferreira | 3,560.41 mi (5,729.93 km) |
| Manassas to Palmela | 3,606.91 mi (5,804.76 km) |
| Manassas to Paredes | 3,565.32 mi (5,737.84 km) |
| Manassas to Paredes de Coura | 3,536.45 mi (5,691.36 km) |
| Manassas to Penacova | 3,591.72 mi (5,780.32 km) |
| Manassas to Penafiel | 3,567.56 mi (5,741.43 km) |
| Manassas to Peniche | 3,562.77 mi (5,733.73 km) |
| Manassas to Peso da Regua | 3,593.12 mi (5,782.56 km) |
| Manassas to Pinhal Novo | 3,604.46 mi (5,800.82 km) |
| Manassas to Pinhel | 3,637.35 mi (5,853.76 km) |
