| Helena to Oststeinbek | 4,731.32 mi (7,614.32 km) |
| Helena to Ottendorf-Okrilla | 4,954.82 mi (7,974.01 km) |
| Helena to Ottersberg | 4,728.81 mi (7,610.29 km) |
| Helena to Ottobrunn | 5,071.01 mi (8,161.00 km) |
| Helena to Ottweiler | 4,873.85 mi (7,843.70 km) |
| Helena to Overath | 4,793.39 mi (7,714.22 km) |
| Helena to Oyten | 4,727.42 mi (7,608.05 km) |
| Helena to Paderborn | 4,792.31 mi (7,712.48 km) |
| Helena to Papenburg | 4,684.15 mi (7,538.41 km) |
| Helena to Parchim | 4,780.59 mi (7,693.61 km) |
| Helena to Pasewalk | 4,829.57 mi (7,772.45 km) |
| Helena to Passau | 5,091.41 mi (8,193.83 km) |
| Helena to Pattensen | 4,789.84 mi (7,708.50 km) |
| Helena to Pegnitz | 4,974.24 mi (8,005.26 km) |
| Helena to Peine | 4,799.22 mi (7,723.60 km) |
