| Barton upon Irwell to Oliveira de Frades | 922.38 mi (1,484.43 km) |
| Barton upon Irwell to Oliveira do Bairro | 940.12 mi (1,512.98 km) |
| Barton upon Irwell to Oliveira do Hospital | 942.07 mi (1,516.11 km) |
| Barton upon Irwell to Ourem | 998.81 mi (1,607.43 km) |
| Barton upon Irwell to Ovar | 918.81 mi (1,478.69 km) |
| Barton upon Irwell to Pacos de Ferreira | 888.87 mi (1,430.50 km) |
| Barton upon Irwell to Palmela | 1,075.74 mi (1,731.24 km) |
| Barton upon Irwell to Paredes | 892.33 mi (1,436.06 km) |
| Barton upon Irwell to Paredes de Coura | 848.62 mi (1,365.72 km) |
| Barton upon Irwell to Penacova | 953.51 mi (1,534.53 km) |
| Barton upon Irwell to Penafiel | 891.22 mi (1,434.28 km) |
| Barton upon Irwell to Peniche | 1,030.29 mi (1,658.09 km) |
| Barton upon Irwell to Peso da Regua | 886.97 mi (1,427.43 km) |
| Barton upon Irwell to Pinhal Novo | 1,071.63 mi (1,724.63 km) |
| Barton upon Irwell to Pinhel | 903.95 mi (1,454.77 km) |
