| Donaueschingen to Oliveira do Bairro | 982.93 mi (1,581.88 km) |
| Donaueschingen to Oliveira do Hospital | 963.12 mi (1,549.99 km) |
| Donaueschingen to Ourem | 1,022.93 mi (1,646.24 km) |
| Donaueschingen to Ovar | 974.15 mi (1,567.74 km) |
| Donaueschingen to Pacos de Ferreira | 948.24 mi (1,526.05 km) |
| Donaueschingen to Palmela | 1,085.53 mi (1,746.99 km) |
| Donaueschingen to Paredes | 948.04 mi (1,525.73 km) |
| Donaueschingen to Paredes de Coura | 930.49 mi (1,497.48 km) |
| Donaueschingen to Penacova | 984.30 mi (1,584.07 km) |
| Donaueschingen to Penafiel | 945.71 mi (1,521.97 km) |
| Donaueschingen to Peniche | 1,068.99 mi (1,720.38 km) |
| Donaueschingen to Peso da Regua | 925.86 mi (1,490.03 km) |
| Donaueschingen to Pinhal Novo | 1,083.11 mi (1,743.09 km) |
| Donaueschingen to Pinhel | 912.17 mi (1,467.99 km) |
| Donaueschingen to Pombal | 1,013.81 mi (1,631.57 km) |
