| Williamstown to Montana | 4,764.36 mi (7,667.50 km) |
| Williamstown to Nova Zagora | 4,915.74 mi (7,911.11 km) |
| Williamstown to Novi Iskar | 4,793.97 mi (7,715.15 km) |
| Williamstown to Novi Pazar | 4,927.59 mi (7,930.19 km) |
| Williamstown to Omurtag | 4,906.67 mi (7,896.52 km) |
| Williamstown to Panagyurishte | 4,840.44 mi (7,789.93 km) |
| Williamstown to Parvomay | 4,899.34 mi (7,884.73 km) |
| Williamstown to Pavlikeni | 4,856.55 mi (7,815.87 km) |
| Williamstown to Pazardzhik | 4,858.85 mi (7,819.57 km) |
| Williamstown to Pernik | 4,788.91 mi (7,707.00 km) |
| Williamstown to Peshtera | 4,864.29 mi (7,828.32 km) |
| Williamstown to Petrich | 4,844.70 mi (7,796.79 km) |
| Williamstown to Pleven | 4,821.38 mi (7,759.26 km) |
| Williamstown to Plovdiv | 4,878.08 mi (7,850.52 km) |
| Williamstown to Pomorie | 4,977.26 mi (8,010.13 km) |
