| Slough to Montana | 1,237.50 mi (1,991.56 km) |
| Slough to Nova Zagora | 1,389.23 mi (2,235.75 km) |
| Slough to Novi Iskar | 1,267.36 mi (2,039.63 km) |
| Slough to Novi Pazar | 1,404.91 mi (2,260.99 km) |
| Slough to Omurtag | 1,381.78 mi (2,223.76 km) |
| Slough to Panagyurishte | 1,313.70 mi (2,114.20 km) |
| Slough to Parvomay | 1,372.51 mi (2,208.85 km) |
| Slough to Pavlikeni | 1,330.65 mi (2,141.47 km) |
| Slough to Pazardzhik | 1,332.32 mi (2,144.16 km) |
| Slough to Pernik | 1,262.83 mi (2,032.33 km) |
| Slough to Peshtera | 1,338.00 mi (2,153.30 km) |
| Slough to Petrich | 1,321.80 mi (2,127.23 km) |
| Slough to Pleven | 1,295.13 mi (2,084.31 km) |
| Slough to Plovdiv | 1,351.38 mi (2,174.83 km) |
| Slough to Pomorie | 1,452.67 mi (2,337.85 km) |
