| Del Rio to Opwijk | 5,265.67 mi (8,474.28 km) |
| Del Rio to Ostend | 5,209.12 mi (8,383.27 km) |
| Del Rio to Oud-Heverlee | 5,288.52 mi (8,511.04 km) |
| Del Rio to Oud-Turnhout | 5,283.49 mi (8,502.95 km) |
| Del Rio to Oudenaarde | 5,247.61 mi (8,445.21 km) |
| Del Rio to Oudenburg | 5,213.59 mi (8,390.47 km) |
| Del Rio to Oupeye | 5,329.62 mi (8,577.19 km) |
| Del Rio to Overijse | 5,285.23 mi (8,505.75 km) |
| Del Rio to Overpelt | 5,303.13 mi (8,534.56 km) |
| Del Rio to Paal | 5,300.30 mi (8,530.00 km) |
| Del Rio to Peer | 5,307.47 mi (8,541.55 km) |
| Del Rio to Pepinster | 5,341.19 mi (8,595.81 km) |
| Del Rio to Peruwelz | 5,258.35 mi (8,462.49 km) |
| Del Rio to Perwez | 5,301.42 mi (8,531.81 km) |
| Del Rio to Philippeville | 5,306.19 mi (8,539.49 km) |
