| Perry Hall to Octeville | 3,598.35 mi (5,790.99 km) |
| Perry Hall to Oignies | 3,771.49 mi (6,069.62 km) |
| Perry Hall to Oissel | 3,720.45 mi (5,987.48 km) |
| Perry Hall to Olivet | 3,792.39 mi (6,103.26 km) |
| Perry Hall to Ollioules | 4,102.61 mi (6,602.51 km) |
| Perry Hall to Olonne-sur-Mer | 3,666.16 mi (5,900.12 km) |
| Perry Hall to Oloron-Sainte-Marie | 3,807.65 mi (6,127.82 km) |
| Perry Hall to Onet Village | 3,919.55 mi (6,307.91 km) |
| Perry Hall to Onnaing | 3,798.31 mi (6,112.78 km) |
| Perry Hall to Orange | 4,025.32 mi (6,478.12 km) |
| Perry Hall to Orchies | 3,781.61 mi (6,085.92 km) |
| Perry Hall to Orleans | 3,791.74 mi (6,102.21 km) |
| Perry Hall to Orly | 3,790.41 mi (6,100.07 km) |
| Perry Hall to Ormesson-sur-Marne | 3,795.46 mi (6,108.21 km) |
| Perry Hall to Orsay | 3,782.91 mi (6,088.01 km) |
