| Lansdale to Orbetello | 4,279.67 mi (6,887.47 km) |
| Lansdale to Oria | 4,632.23 mi (7,454.85 km) |
| Lansdale to Oristano | 4,250.25 mi (6,840.12 km) |
| Lansdale to Orta Nova | 4,516.87 mi (7,269.20 km) |
| Lansdale to Orte | 4,330.45 mi (6,969.19 km) |
| Lansdale to Ortona | 4,422.15 mi (7,116.76 km) |
| Lansdale to Orvieto | 4,309.28 mi (6,935.12 km) |
| Lansdale to Orzinuovi | 4,124.12 mi (6,637.12 km) |
| Lansdale to Osimo | 4,341.76 mi (6,987.38 km) |
| Lansdale to Ospitaletto | 4,125.02 mi (6,638.58 km) |
| Lansdale to Ostuni | 4,621.02 mi (7,436.82 km) |
| Lansdale to Ottaviano | 4,480.76 mi (7,211.08 km) |
| Lansdale to Ovada | 4,093.42 mi (6,587.72 km) |
| Lansdale to Ozieri | 4,245.40 mi (6,832.30 km) |
| Lansdale to Paceco | 4,500.99 mi (7,243.64 km) |
