| Garland to Orbetello | 5,514.79 mi (8,875.20 km) |
| Garland to Oria | 5,859.54 mi (9,430.02 km) |
| Garland to Oristano | 5,504.06 mi (8,857.93 km) |
| Garland to Orta Nova | 5,745.49 mi (9,246.47 km) |
| Garland to Orte | 5,562.31 mi (8,951.67 km) |
| Garland to Ortona | 5,648.92 mi (9,091.06 km) |
| Garland to Orvieto | 5,540.45 mi (8,916.49 km) |
| Garland to Orzinuovi | 5,345.11 mi (8,602.13 km) |
| Garland to Osimo | 5,564.57 mi (8,955.31 km) |
| Garland to Ospitaletto | 5,344.63 mi (8,601.36 km) |
| Garland to Ostuni | 5,847.22 mi (9,410.18 km) |
| Garland to Ottaviano | 5,715.54 mi (9,198.27 km) |
| Garland to Ovada | 5,322.56 mi (8,565.84 km) |
| Garland to Ozieri | 5,495.26 mi (8,843.77 km) |
| Garland to Paceco | 5,754.25 mi (9,260.57 km) |
