| Matthews to Orbetello | 4,726.70 mi (7,606.89 km) |
| Matthews to Oria | 5,081.04 mi (8,177.15 km) |
| Matthews to Oristano | 4,689.37 mi (7,546.81 km) |
| Matthews to Orta Nova | 4,965.52 mi (7,991.23 km) |
| Matthews to Orte | 4,778.45 mi (7,690.18 km) |
| Matthews to Ortona | 4,871.52 mi (7,839.96 km) |
| Matthews to Orvieto | 4,757.55 mi (7,656.53 km) |
| Matthews to Orzinuovi | 4,575.61 mi (7,363.73 km) |
| Matthews to Osimo | 4,792.38 mi (7,712.58 km) |
| Matthews to Ospitaletto | 4,576.86 mi (7,365.74 km) |
| Matthews to Ostuni | 5,070.19 mi (8,159.69 km) |
| Matthews to Ottaviano | 4,927.50 mi (7,930.04 km) |
| Matthews to Ovada | 4,542.73 mi (7,310.82 km) |
| Matthews to Ozieri | 4,686.53 mi (7,542.24 km) |
| Matthews to Paceco | 4,939.84 mi (7,949.90 km) |
