| Amarillo to Opwijk | 4,988.25 mi (8,027.81 km) |
| Amarillo to Ostend | 4,932.76 mi (7,938.51 km) |
| Amarillo to Oud-Heverlee | 5,010.82 mi (8,064.14 km) |
| Amarillo to Oud-Turnhout | 5,003.04 mi (8,051.61 km) |
| Amarillo to Oudenaarde | 4,971.77 mi (8,001.30 km) |
| Amarillo to Oudenburg | 4,937.29 mi (7,945.80 km) |
| Amarillo to Oupeye | 5,050.69 mi (8,128.30 km) |
| Amarillo to Overijse | 5,008.00 mi (8,059.60 km) |
| Amarillo to Overpelt | 5,022.35 mi (8,082.69 km) |
| Amarillo to Paal | 5,020.75 mi (8,080.11 km) |
| Amarillo to Peer | 5,026.99 mi (8,090.16 km) |
| Amarillo to Pepinster | 5,062.57 mi (8,147.41 km) |
| Amarillo to Peruwelz | 4,984.08 mi (8,021.10 km) |
| Amarillo to Perwez | 5,024.40 mi (8,085.99 km) |
| Amarillo to Philippeville | 5,031.59 mi (8,097.57 km) |
