| Clay to Montana | 5,517.28 mi (8,879.21 km) |
| Clay to Nova Zagora | 5,667.39 mi (9,120.78 km) |
| Clay to Novi Iskar | 5,547.93 mi (8,928.53 km) |
| Clay to Novi Pazar | 5,675.98 mi (9,134.60 km) |
| Clay to Omurtag | 5,656.58 mi (9,103.39 km) |
| Clay to Panagyurishte | 5,594.10 mi (9,002.83 km) |
| Clay to Parvomay | 5,652.66 mi (9,097.07 km) |
| Clay to Pavlikeni | 5,607.48 mi (9,024.36 km) |
| Clay to Pazardzhik | 5,612.92 mi (9,033.11 km) |
| Clay to Pernik | 5,543.55 mi (8,921.48 km) |
| Clay to Peshtera | 5,618.69 mi (9,042.41 km) |
| Clay to Petrich | 5,601.26 mi (9,014.35 km) |
| Clay to Pleven | 5,572.77 mi (8,968.51 km) |
| Clay to Plovdiv | 5,631.80 mi (9,063.51 km) |
| Clay to Pomorie | 5,726.81 mi (9,216.42 km) |
