| Southborough to Poyo | 735.06 mi (1,182.97 km) |
| Southborough to Pozoblanco | 917.16 mi (1,476.03 km) |
| Southborough to Premia de Mar | 675.35 mi (1,086.88 km) |
| Southborough to Priego de Cordoba | 973.12 mi (1,566.09 km) |
| Southborough to Puente-Genil | 983.28 mi (1,582.44 km) |
| Southborough to Puenteareas | 746.40 mi (1,201.21 km) |
| Southborough to Puerto de la Cruz | 1,797.61 mi (2,892.97 km) |
| Southborough to Puerto del Rosario | 1,729.01 mi (2,782.57 km) |
| Southborough to Puerto Real | 1,059.82 mi (1,705.62 km) |
| Southborough to Puertollano | 887.88 mi (1,428.91 km) |
| Southborough to Puigcerda | 608.12 mi (978.67 km) |
| Southborough to Pulpi | 955.70 mi (1,538.05 km) |
| Southborough to Puzol | 798.02 mi (1,284.29 km) |
| Southborough to Quintanar de la Orden | 815.10 mi (1,311.77 km) |
| Southborough to Rafelbunol | 799.77 mi (1,287.10 km) |
