| Grand Prairie to Opwijk | 4,943.48 mi (7,955.76 km) |
| Grand Prairie to Ostend | 4,886.84 mi (7,864.61 km) |
| Grand Prairie to Oud-Heverlee | 4,966.34 mi (7,992.56 km) |
| Grand Prairie to Oud-Turnhout | 4,961.61 mi (7,984.93 km) |
| Grand Prairie to Oudenaarde | 4,925.27 mi (7,926.46 km) |
| Grand Prairie to Oudenburg | 4,891.31 mi (7,871.80 km) |
| Grand Prairie to Oupeye | 5,007.56 mi (8,058.89 km) |
| Grand Prairie to Overijse | 4,963.01 mi (7,987.19 km) |
| Grand Prairie to Overpelt | 4,981.28 mi (8,016.60 km) |
| Grand Prairie to Paal | 4,978.31 mi (8,011.82 km) |
| Grand Prairie to Peer | 4,985.58 mi (8,023.52 km) |
| Grand Prairie to Pepinster | 5,019.09 mi (8,077.44 km) |
| Grand Prairie to Peruwelz | 4,935.86 mi (7,943.50 km) |
| Grand Prairie to Perwez | 4,979.18 mi (8,013.21 km) |
| Grand Prairie to Philippeville | 4,983.72 mi (8,020.53 km) |
