| Lake Elsinore to Orbetello | 6,251.67 mi (10,061.09 km) |
| Lake Elsinore to Oria | 6,563.09 mi (10,562.27 km) |
| Lake Elsinore to Oristano | 6,292.49 mi (10,126.78 km) |
| Lake Elsinore to Orta Nova | 6,456.96 mi (10,391.47 km) |
| Lake Elsinore to Orte | 6,289.19 mi (10,121.47 km) |
| Lake Elsinore to Ortona | 6,359.91 mi (10,235.29 km) |
| Lake Elsinore to Orvieto | 6,266.51 mi (10,084.98 km) |
| Lake Elsinore to Orzinuovi | 6,055.60 mi (9,745.55 km) |
| Lake Elsinore to Osimo | 6,269.81 mi (10,090.28 km) |
| Lake Elsinore to Ospitaletto | 6,052.05 mi (9,739.84 km) |
| Lake Elsinore to Ostuni | 6,548.54 mi (10,538.85 km) |
| Lake Elsinore to Ottaviano | 6,443.61 mi (10,370.00 km) |
| Lake Elsinore to Ovada | 6,052.69 mi (9,740.87 km) |
| Lake Elsinore to Ozieri | 6,272.34 mi (10,094.35 km) |
| Lake Elsinore to Paceco | 6,532.37 mi (10,512.84 km) |
