| Helena to Montana | 5,643.18 mi (9,081.82 km) |
| Helena to Nova Zagora | 5,766.06 mi (9,279.57 km) |
| Helena to Novi Iskar | 5,682.97 mi (9,145.86 km) |
| Helena to Novi Pazar | 5,740.72 mi (9,238.79 km) |
| Helena to Omurtag | 5,738.13 mi (9,234.62 km) |
| Helena to Panagyurishte | 5,721.58 mi (9,208.00 km) |
| Helena to Parvomay | 5,770.97 mi (9,287.47 km) |
| Helena to Pavlikeni | 5,703.76 mi (9,179.31 km) |
| Helena to Pazardzhik | 5,743.45 mi (9,243.19 km) |
| Helena to Pernik | 5,687.17 mi (9,152.62 km) |
| Helena to Peshtera | 5,752.75 mi (9,258.16 km) |
| Helena to Petrich | 5,764.16 mi (9,276.52 km) |
| Helena to Pleven | 5,677.04 mi (9,136.31 km) |
| Helena to Plovdiv | 5,756.64 mi (9,264.42 km) |
| Helena to Pomorie | 5,798.43 mi (9,331.67 km) |
