| Bottrop to Olivenza | 1,116.04 mi (1,796.09 km) |
| Bottrop to Olot | 678.32 mi (1,091.66 km) |
| Bottrop to Onate | 730.79 mi (1,176.10 km) |
| Bottrop to Onda | 869.77 mi (1,399.76 km) |
| Bottrop to Onteniente | 949.99 mi (1,528.86 km) |
| Bottrop to Orihuela | 1,004.10 mi (1,615.94 km) |
| Bottrop to Osuna | 1,148.83 mi (1,848.86 km) |
| Bottrop to Ourense | 940.04 mi (1,512.85 km) |
| Bottrop to Oviedo | 818.94 mi (1,317.96 km) |
| Bottrop to Paiporta | 907.23 mi (1,460.04 km) |
| Bottrop to Pajara | 1,935.33 mi (3,114.61 km) |
| Bottrop to Palafolls | 708.87 mi (1,140.81 km) |
| Bottrop to Palafrugell | 687.03 mi (1,105.67 km) |
| Bottrop to Palamos | 692.25 mi (1,114.08 km) |
| Bottrop to Palencia | 849.70 mi (1,367.47 km) |
