| Richardson to Montana | 5,941.54 mi (9,561.99 km) |
| Richardson to Nova Zagora | 6,086.98 mi (9,796.05 km) |
| Richardson to Novi Iskar | 5,975.02 mi (9,615.87 km) |
| Richardson to Novi Pazar | 6,086.76 mi (9,795.69 km) |
| Richardson to Omurtag | 6,071.51 mi (9,771.15 km) |
| Richardson to Panagyurishte | 6,019.99 mi (9,688.23 km) |
| Richardson to Parvomay | 6,077.11 mi (9,780.16 km) |
| Richardson to Pavlikeni | 6,025.48 mi (9,697.08 km) |
| Richardson to Pazardzhik | 6,039.88 mi (9,720.25 km) |
| Richardson to Pernik | 5,972.77 mi (9,612.25 km) |
| Richardson to Peshtera | 6,046.65 mi (9,731.15 km) |
| Richardson to Petrich | 6,036.26 mi (9,714.42 km) |
| Richardson to Pleven | 5,992.31 mi (9,643.69 km) |
| Richardson to Plovdiv | 6,057.60 mi (9,748.77 km) |
| Richardson to Pomorie | 6,140.24 mi (9,881.77 km) |
