| Porvoo to Aberbargoed | 1,252.09 mi (2,015.05 km) |
| Porvoo to Aberdare | 1,258.64 mi (2,025.59 km) |
| Porvoo to Aberdeen | 1,011.67 mi (1,628.12 km) |
| Porvoo to Abergavenny | 1,239.66 mi (1,995.04 km) |
| Porvoo to Abergele | 1,196.74 mi (1,925.96 km) |
| Porvoo to Abertawe | 1,279.54 mi (2,059.22 km) |
| Porvoo to Abertillery | 1,247.53 mi (2,007.71 km) |
| Porvoo to Aberystwyth | 1,249.35 mi (2,010.63 km) |
| Porvoo to Abingdon | 1,190.08 mi (1,915.24 km) |
| Porvoo to Abram | 1,154.35 mi (1,857.75 km) |
| Porvoo to Accrington | 1,137.06 mi (1,829.93 km) |
| Porvoo to Acomb | 1,087.72 mi (1,750.52 km) |
| Porvoo to Acton | 1,164.46 mi (1,874.02 km) |
| Porvoo to Addlestone | 1,178.14 mi (1,896.03 km) |
| Porvoo to Adel | 1,107.24 mi (1,781.93 km) |
