| Ickenham to Oliveira de Frades | 834.49 mi (1,342.99 km) |
| Ickenham to Oliveira do Bairro | 853.84 mi (1,374.12 km) |
| Ickenham to Oliveira do Hospital | 850.74 mi (1,369.14 km) |
| Ickenham to Ourem | 910.23 mi (1,464.87 km) |
| Ickenham to Ovar | 834.73 mi (1,343.37 km) |
| Ickenham to Pacos de Ferreira | 804.55 mi (1,294.80 km) |
| Ickenham to Palmela | 986.28 mi (1,587.26 km) |
| Ickenham to Paredes | 807.26 mi (1,299.16 km) |
| Ickenham to Paredes de Coura | 768.17 mi (1,236.25 km) |
| Ickenham to Penacova | 864.88 mi (1,391.89 km) |
| Ickenham to Penafiel | 805.80 mi (1,296.82 km) |
| Ickenham to Peniche | 946.16 mi (1,522.70 km) |
| Ickenham to Peso da Regua | 797.61 mi (1,283.62 km) |
| Ickenham to Pinhal Novo | 982.43 mi (1,581.08 km) |
| Ickenham to Pinhel | 808.20 mi (1,300.67 km) |
