| Heilbronn to Olivenza | 1,083.14 mi (1,743.15 km) |
| Heilbronn to Olot | 580.26 mi (933.83 km) |
| Heilbronn to Onate | 698.24 mi (1,123.71 km) |
| Heilbronn to Onda | 786.61 mi (1,265.93 km) |
| Heilbronn to Onteniente | 863.12 mi (1,389.06 km) |
| Heilbronn to Orihuela | 916.28 mi (1,474.60 km) |
| Heilbronn to Osuna | 1,090.83 mi (1,755.53 km) |
| Heilbronn to Ourense | 945.51 mi (1,521.65 km) |
| Heilbronn to Oviedo | 821.20 mi (1,321.60 km) |
| Heilbronn to Paiporta | 822.17 mi (1,323.15 km) |
| Heilbronn to Pajara | 1,893.17 mi (3,046.76 km) |
| Heilbronn to Palafolls | 604.07 mi (972.16 km) |
| Heilbronn to Palafrugell | 578.84 mi (931.55 km) |
| Heilbronn to Palamos | 584.03 mi (939.91 km) |
| Heilbronn to Palencia | 825.57 mi (1,328.63 km) |
