| Drexel Hill to Octeville | 3,525.95 mi (5,674.48 km) |
| Drexel Hill to Oignies | 3,699.46 mi (5,953.70 km) |
| Drexel Hill to Oissel | 3,648.11 mi (5,871.06 km) |
| Drexel Hill to Olivet | 3,719.86 mi (5,986.54 km) |
| Drexel Hill to Ollioules | 4,029.80 mi (6,485.33 km) |
| Drexel Hill to Olonne-sur-Mer | 3,593.40 mi (5,783.02 km) |
| Drexel Hill to Oloron-Sainte-Marie | 3,734.82 mi (6,010.62 km) |
| Drexel Hill to Onet Village | 3,846.75 mi (6,190.74 km) |
| Drexel Hill to Onnaing | 3,726.30 mi (5,996.89 km) |
| Drexel Hill to Orange | 3,952.53 mi (6,360.99 km) |
| Drexel Hill to Orchies | 3,709.60 mi (5,970.03 km) |
| Drexel Hill to Orleans | 3,719.21 mi (5,985.49 km) |
| Drexel Hill to Orly | 3,718.03 mi (5,983.58 km) |
| Drexel Hill to Ormesson-sur-Marne | 3,723.09 mi (5,991.74 km) |
| Drexel Hill to Orsay | 3,710.51 mi (5,971.50 km) |
