| Omurtag to Oliveira do Bairro | 1,794.03 mi (2,887.21 km) |
| Omurtag to Oliveira do Hospital | 1,765.31 mi (2,841.00 km) |
| Omurtag to Ourem | 1,816.07 mi (2,922.68 km) |
| Omurtag to Ovar | 1,793.64 mi (2,886.58 km) |
| Omurtag to Pacos de Ferreira | 1,774.23 mi (2,855.35 km) |
| Omurtag to Palmela | 1,858.53 mi (2,991.02 km) |
| Omurtag to Paredes | 1,772.16 mi (2,852.02 km) |
| Omurtag to Paredes de Coura | 1,770.62 mi (2,849.53 km) |
| Omurtag to Penacova | 1,788.29 mi (2,877.97 km) |
| Omurtag to Penafiel | 1,769.58 mi (2,847.87 km) |
| Omurtag to Peniche | 1,863.18 mi (2,998.50 km) |
| Omurtag to Peso da Regua | 1,744.97 mi (2,808.26 km) |
| Omurtag to Pinhal Novo | 1,857.64 mi (2,989.59 km) |
| Omurtag to Pinhel | 1,716.79 mi (2,762.90 km) |
| Omurtag to Pombal | 1,813.24 mi (2,918.12 km) |
